Case Interview Examples: 100+ Free Practice Cases (2026)

Author: Taylor Warfield, Former Bain Manager and interviewer

Last Updated: March 20, 2026

Case interview examples


Case interview examples are the single best resource for practicing consulting interviews. Below, you will find over 100 free case interview examples from McKinsey, BCG, Bain, Deloitte, and other top consulting firms, organized by industry, case type, and firm.

 

Whether you are just starting your case interview preparation or looking for more advanced practice, this page gives you everything you need. We have also included sample case questions with example prompts, a complete practice guide, and links to 700+ additional cases from MBA casebooks.

 

Having coached hundreds of candidates as a former Bain Manager and interviewer, I know that the candidates who practice with real, high-quality case examples consistently outperform those who rely on generic prep materials. The examples on this page come directly from the firms themselves, making them the most realistic practice you can get for free.

 

But first, a quick heads up:

 

McKinsey, BCG, Bain, and other top firms accept less than 1% of applicants every year. If you want to triple your chances of landing interviews and 8x your chances of passing them, watch my free 40-minute training.

 

What Changed in 2026?

 

We added 15+ new case links from McKinsey, BCG, and Bain, including updated interactive cases published in late 2025 and early 2026. We also added two new industry sections (Financial Services and Energy), a full case type explainer with sample prompts, and a firm comparison table covering interview format differences.

 

The practice tips section was completely rewritten with a step-by-step preparation roadmap and a new section on how many cases you actually need to practice. We also added a comparison table for solo vs. partner vs. coached practice to help you allocate your prep time more effectively.

 

What Types of Cases Will You See in a Case Interview?

 

Case interviews test your ability to break down a business problem, analyze data, and deliver a clear recommendation. According to a Glassdoor analysis of consulting interview reviews, roughly 85% of case interviews fall into one of eight common types.

 

Understanding these types before you practice will help you recognize patterns faster and build stronger frameworks. Here is a breakdown of each type.

 

Case Type

What It Tests

Example Prompt

How Common

Profitability

Revenue vs. cost diagnosis

A retailer's profits dropped 20% in two years. Why?

Very common

Market Entry

Should the client enter a new market?

Should a US coffee chain expand into Japan?

Very common

M&A

Should the client acquire a target?

Should a pharma company acquire a biotech startup?

Common

Market Sizing

Estimation and structured math

How many smartphones are sold in India each year?

Common

Pricing

How to price a product or service

How should a SaaS company price its new product?

Moderate

Growth Strategy

How to grow revenue or market share

How can a grocery chain grow revenue by 15%?

Common

Operations

Process improvement and efficiency

A warehouse is missing 30% of delivery targets. Fix it.

Moderate

New Product

Should the client launch a new product?

Should an automaker launch an electric SUV?

Moderate

 

Profitability and market entry cases appear most frequently in first round interviews at McKinsey, BCG, and Bain. In my experience as a Bain interviewer, roughly 4 out of every 10 cases I gave were profitability cases. They are popular because they test whether you can break a big problem into smaller parts and use basic business math.

 

Market sizing questions are especially common at McKinsey, where they are often embedded as a sub-question within a larger case. At BCG and Bain, you are more likely to get a standalone market sizing question at the start of a case before diving into the strategic analysis.

 

M&A cases tend to show up more in final rounds and at firms with strong private equity or corporate finance practices. Pricing and operations cases are less frequent but appear regularly enough that you should practice at least 2 to 3 of each type.

 

If you want to learn the exact frameworks and strategies for each of these case types, my case interview course walks you through proven approaches in as little as 7 days. For a deeper dive into case interview frameworks, check out our complete guide.

 

Case Interview Examples Organized by Industry

 

Below, we have linked all of the case interview examples we could find from consulting firm websites and YouTube videos and organized them by industry. This will be helpful if you are interviewing for a specific industry practice or want to build familiarity with sector-specific business problems.

 

We recommend practicing cases across at least 3 to 4 different industries rather than focusing on just one. In my experience, roughly 60% of case interviews feature a different industry than what the candidate expected. Being comfortable with unfamiliar sectors shows the interviewer that you can think on your feet.

 

Aerospace, Defense, and Government Case Interview Examples

 

 

 

 

 

Consumer Products and Retail Case Interview Examples

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Healthcare and Life Sciences Case Interview Examples

 

 

 

 

 

 

 

Manufacturing and Production Case Interview Examples

 

 

 

 

Financial Services Case Interview Examples

 

 

 

 

 

Energy and Utilities Case Interview Examples

 

 

 

 

Social and Non-Profit Case Interview Examples

 

 

 

 

 

 

 

 

 

Technology, Media, and Telecom Case Interview Examples

 

 

 

 

Transportation Case Interview Examples

 

 

 

 

 

 

Travel and Entertainment Case Interview Examples

 

 

 

 

Case Interview Examples Organized by Function

 

Below, we have taken the same cases and organized them by function instead. This is helpful if you want to build depth in a specific case type, such as profitability or market entry.

 

I recommend starting with profitability and market entry cases, since these two types make up the majority of first-round interviews. Once you are comfortable with those, move on to M&A, pricing, and operations cases to round out your preparation.

 

Profitability Case Interview Examples

 

 

 

 

 

 

 

 

 

 

Market Entry Case Interview Examples

 

 

 

 

 

 

 

 

Merger and Acquisition Case Interview Examples

 

 

 

Growth Strategy Case Interview Examples

 

 

 

 

 

 

 

 

 

Pricing Case Interview Examples

 

 

 

New Product Launch Case Interview Examples

 

 

 

Market Sizing Case Interview Examples

 

 

 

 

For a step-by-step guide on solving estimation questions, read our market sizing questions guide.

 

Operations Case Interview Examples

 

 

 

 

Case Interview Examples Organized by Consulting Firm

 

Below, we have organized the same cases by consulting firm. This is most useful when you are interviewing with a specific company and want to get familiar with their style and difficulty level.

 

McKinsey Case Interview Examples

 

McKinsey uses interviewer-led cases, meaning the interviewer controls the pace and directs you to specific questions. McKinsey also requires most candidates to complete the Solve assessment (a gamified problem-solving test) before the interview stage.

 

 

 

 

 

 

 

 

 

BCG Case Interview Examples

 

BCG uses candidate-led cases, meaning you are expected to drive the direction of the case. BCG also uses the Casey chatbot and a written case format in some offices. In 2025, BCG began rolling out the Consulting Career Assessment as a pre-interview screening step.

 

 

 

 

 

 

 

Bain Case Interview Examples

 

Bain uses candidate-led cases and places heavy emphasis on collaboration and conversational style. Bain also uses the SOVA aptitude test and, more recently, the TestGorilla assessment in its screening process.

 

 

 

 

 

Deloitte Case Interview Examples

 

 

 

 

 

 

 

 

 

Other Consulting Firm Case Interview Examples

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What Do Different Firms Look for in Case Interviews?

 

Each consulting firm runs its case interviews slightly differently. In my experience at Bain and having coached hundreds of candidates across all three MBB firms, understanding these differences can meaningfully improve your performance. Here is a quick comparison.

 

Firm

Case Format

Pre-Interview Test

Key Emphasis

Unique Feature

McKinsey

Interviewer-led

Solve (gamified assessment)

Structured problem solving

Depth of answer

BCG

Candidate-led

Casey chatbot, written case

Hypothesis-driven thinking

Creativity

Bain

Candidate-led

SOVA, TestGorilla

Collaboration and conversation

Strong emphasis on cultural fit

Deloitte

Mixed (varies by office)

Varies by practice

Analytical depth

Group case interviews possible

 

According to data from McKinsey's careers page, about 70% of candidates who make it to the interview stage still do not receive an offer. The interview is the hardest part of the process, which is why practicing with real case interview examples is so important.

 

One practical tip: when you are interviewing with a specific firm, practice their cases last. For example, if your interview is with Bain, work through McKinsey and BCG cases first to build your skills, then switch to Bain cases in the final week. This way, the firm-specific format and style will be freshest in your mind on interview day.

 

Where Can You Find More Case Interview Examples?

 

Beyond the free examples listed above, there are three main types of resources for getting more case practice: books, online courses, and coaching. Each serves a different purpose and works best at different stages of your preparation.

 

Most candidates use a combination of all three. A typical path looks like: start with free examples and a prep book, move to a course for structured learning, and add 2 to 3 coaching sessions if needed to break through plateaus.

 

Case Interview Prep Books

 

Case interview prep books cost between $20 and $30 and contain dozens of practice cases with sample answers. Based on our review of the best case interview prep books, the three we recommend are:

 

  • Hacking the Case Interview: Covers exactly what to do and say in every step of the case interview. Best for beginners.

 

  • The Ultimate Case Interview Workbook: Contains 65+ practice problems and 15 full-length cases. Best for intermediates looking for quality practice.

 

  • Case Interview Secrets: Teaches core concepts like issue trees and hypothesis-driven approaches through stories and examples.

 

Case Interview Courses

 

Online courses are more expensive than books (typically $200 to $400) but offer faster learning through video instruction and structured practice. If you want a single resource to learn the best case strategies efficiently, check out our case interview course. It includes 70+ video lessons and 20 full-length practice cases based on real consulting interviews.

 

Case Interview Coaching

 

Coaching sessions typically cost $100 to $300 for a 40 to 60 minute mock case with a former consultant or interviewer. Coaching is most valuable after you have already learned the basics and want expert-level feedback on specific weaknesses. Consider our case interview coaching if you want 1-on-1 practice with a former Bain interviewer.

 

You do not need coaching to get a consulting offer. Most successful candidates prepare using a combination of free examples, a prep book, and partner practice. Coaching is simply the fastest way to break through a plateau if you have already put in significant preparation time.

 

Case Interview Examples from MBA Casebooks

 

For even more case interview examples, check out our article on 23 MBA consulting casebooks with 700+ free practice cases. These are documents that MBA consulting clubs put together to help their members prepare for case interviews. Here are some of the best casebooks:

 

 

 

 

 

 

 

 

 

 

 

Keep in mind that MBA casebooks vary in quality. Some cases are taken from actual consulting interviews and are excellent practice. Others are written by students and may not be fully representative of what you will see in a real interview.

 

When using MBA casebooks, look for cases that include a detailed case prompt, specific data points or exhibits, and a well-structured sample answer. Avoid cases that are too short, lack quantitative questions, or provide vague solutions.

 

The best MBA casebooks for quality practice include Wharton, Kellogg, and Harvard Business School. These schools have large consulting clubs that invest significant effort in creating realistic practice cases. We recommend starting with the firm-provided examples listed above and only turning to casebooks once you have exhausted those.

 

Case Interview Examples from HackingTheCaseInterview

 

Below are several of our own case interview examples. These are full video walkthroughs where you can watch a candidate solve a real case from start to finish. Each video covers framework creation, quantitative analysis, and the final recommendation.

 

When using these videos for practice, we recommend pausing at each step and working through the question yourself before watching the candidate's answer. This turns a passive video into active practice and builds the same skills you will need in your real interview.

 

 

 

 

 

 

How Should You Use Case Interview Examples to Practice?

 

Having 100+ case interview examples is useless if you do not practice them the right way. In my experience coaching candidates, the method you use to practice matters just as much as the number of cases you complete. Here is the approach I recommend.

 

Step 1: Learn the Case Interview Structure First

 

Before you start practicing cases, make sure you understand the basic format. A typical case interview has seven steps: understanding the case background, asking clarifying questions, structuring a framework, kicking off the case, solving quantitative problems, answering qualitative questions, and delivering a recommendation.

 

According to Bain's recruiting page, candidates who understand the structure before practicing perform significantly better than those who dive straight into cases without any preparation. Spend at least a few hours studying the format and watching 2 to 3 example case videos before you attempt your first practice case.

 

The seven steps of a case interview are:

 

  • Understanding the case background: take notes while the interviewer reads you the case prompt, then provide a concise synthesis to confirm your understanding

 

  • Asking clarifying questions: ask 2 to 3 questions to make sure you understand the objective and any key constraints

 

  • Structuring a framework: create a 3 to 4 bucket framework that breaks the problem into logical categories

 

  • Kicking off the case: propose which area of your framework to explore first and explain why

 

  • Solving quantitative problems: perform calculations like market sizing, profitability analysis, or breakeven math

 

  • Answering qualitative questions: brainstorm ideas, interpret charts, or give business opinions in a structured way

 

  • Delivering a recommendation: summarize your key findings, state your recommendation, provide 2 to 3 supporting reasons, and suggest next steps

 

Step 2: Practice 3 to 5 Cases by Yourself

 

Start by working through 3 to 5 cases on your own. Read the case prompt, pause the video or cover the answer, and talk through your approach out loud. Do not look at the solution until you have finished your answer.

 

Solo practice builds foundational skills like framework creation and mental math. It is also faster than scheduling time with a partner, so you can get more reps in early on.

 

When practicing solo, follow these guidelines to get the most out of each case:

 

  • Do not have notes or a calculator out: You will not have these in a real interview.

 

  • Do not take breaks in the middle of a mock case: Simulate the real 30 to 45 minute time pressure.

 

  • Talk through everything out loud: This helps you develop the habit of explaining your thinking clearly and reveals gaps in your logic that you would miss if you only worked silently.

 

  • Occasionally record yourself on your phone: Watching yourself back reveals habits like speaking too fast, using filler words, or not making eye contact with your notes.

 

Step 3: Practice 5 to 10 Cases with a Partner

 

Once you feel comfortable with the basics, find a case partner. Practicing with another person simulates the conversational dynamics of a real case interview that solo practice cannot replicate.

 

For each case, spend about 30 to 40 minutes on the case itself and 15 to 20 minutes on feedback. The feedback session is often where the most learning happens. Ask your partner to evaluate you on framework quality, math accuracy, communication clarity, and the strength of your final recommendation.

 

Good case partners include classmates applying to consulting, colleagues with consulting experience, or people you meet through your school's consulting club. If you are giving the case, read through the entire case twice beforehand so you can answer any clarifying questions your partner asks.

 

You can also practice the fit interview portion with your partner, since most consulting interviews include both a case and a behavioral component.

 

Step 4: Get Expert Feedback

 

If you feel like you have plateaued or want targeted feedback on specific weaknesses, consider working with an experienced coach. In my experience, 2 to 3 coaching sessions can compress weeks of self-study into a few hours. If you are interested, check out my case interview coaching for 1-on-1 sessions with a former Bain interviewer.

 

Step 5: Identify and Work on Your Weaknesses

 

After every practice case, write down what you did well and what you need to improve. Common improvement areas include structuring a MECE framework, doing mental math quickly, connecting insights to the case objective, and delivering a clear recommendation.

 

Focus on one improvement area at a time. Trying to fix everything at once leads to slower progress than isolating a single skill and drilling it.

 

Here are the most common weaknesses I see in candidates, based on coaching hundreds of people for consulting interviews:

 

  • Frameworks that are too generic: candidates use the same framework for every case instead of tailoring it to the specific problem. Interviewers notice immediately.

 

  • Slow or inaccurate math: mental math is a trainable skill. Practice doing calculations with round numbers daily. Aim to do multiplication and division problems in under 15 seconds.

 

  • Forgetting to connect insights to the objective: after analyzing data or answering a question, always tie your finding back to the original case question. This is what separates good candidates from great ones.

 

  • Weak recommendations: your final recommendation should have a clear stance, 2 to 3 supporting reasons, and suggested next steps. Many candidates give wishy-washy answers that do not commit to a direction.

 

  • Not driving the case: in candidate-led formats (BCG, Bain), you are expected to proactively suggest what to explore next. Waiting for the interviewer to guide you is a red flag.

 

How Do Solo, Partner, and Coached Practice Compare?

 

Factor

Solo Practice

Partner Practice

Coached Practice

Cost

Free

Free

$100 to $300 per session

Realism

Low to moderate

High

Very high

Feedback Quality

Self-assessment only

Moderate (depends on partner)

Expert-level, firm-specific

Best For

Building foundations, math drills

Simulating real interviews

Breaking through plateaus

Recommended Cases

First 3 to 5

Next 5 to 15

2 to 4 sessions throughout prep

 

How Many Case Interview Examples Should You Practice?

 

Based on survey data from consulting recruiting forums and my own experience coaching candidates, most people who receive offers from MBB firms complete between 30 and 50 practice cases total. Candidates at the lower end of that range tend to be those with strong analytical backgrounds (finance, engineering) who pick up frameworks quickly.

 

Here is a rough breakdown of how to distribute those cases across your preparation timeline:

 

  • First 3 to 5 cases: solo practice to learn the format and build basic framework skills

 

  • Cases 6 to 15: partner practice to develop communication and conversational skills

 

  • Cases 16 to 30: focused drilling on your weakest areas (math speed, framework completeness, recommendation delivery)

 

  • Cases 31 to 50: mock interviews with experienced partners or coaches to polish your overall performance

 

There is a point of diminishing returns. After about 40 to 50 cases, additional practice provides minimal improvement. In fact, practicing too many cases can lead to case fatigue, where your answers start sounding rehearsed and robotic. Interviewers can easily tell when a candidate has over-practiced.

 

In the final 2 to 3 weeks before your interview, I recommend doing no more than 2 cases per week. This keeps you sharp without creating burnout. Spend the remaining time reviewing your notes, working on specific weak spots, and making sure you are well-rested for interview day.

 

Frequently Asked Questions

 

What Is the Best Way to Practice Case Interviews by Yourself?

 

Read the case prompt, create your framework on paper, and talk through every answer out loud as if an interviewer were in the room. Do not look at the solution until you have fully answered each question. After finishing, compare your approach to the sample answer and write down your improvement areas. Record yourself occasionally to identify habits like speaking too fast or using filler words.

 

How Many Practice Cases Do You Need to Pass a Consulting Interview?

 

Most successful candidates complete between 30 and 50 practice cases before their interviews. Quality matters more than quantity. It is better to do 30 cases with focused feedback than 80 cases without reflection. Start with solo practice, move to partner practice, and consider 2 to 3 coaching sessions to break through any plateaus.

 

Are Case Interview Examples from MBA Casebooks Realistic?

 

Some are and some are not. Cases sourced from actual consulting interviews tend to be high quality and realistic. Cases written by MBA students can be hit or miss in terms of difficulty, realism, and solution quality. We recommend prioritizing cases published directly by consulting firms (McKinsey, BCG, Bain, Deloitte) before using casebook cases. Once you have exhausted the firm-provided examples, casebooks are a great supplementary resource.

 

What Are the Most Common Types of Case Interview Questions?

 

The most common types are profitability cases, market entry cases, and market sizing questions. Together, these three types account for roughly 60% to 70% of all case interviews at top consulting firms, according to data from Glassdoor interview reviews. Other common types include M&A, pricing, growth strategy, and operations cases.

 

Do All Consulting Firms Use Case Interviews?

 

Nearly all strategy consulting firms use some form of case interview, including McKinsey, BCG, Bain, Deloitte, LEK, Oliver Wyman, Kearney, and Roland Berger. Some firms also use written cases, group cases, or chatbot-based cases in addition to the traditional one-on-one format. A few boutique firms and non-strategy consulting practices may use different interview formats, but case interviews remain the industry standard for management consulting.

 

Should You Practice Case Interviews from the Firm You Are Interviewing With?

 

Yes, but save them for last. Practice cases from other firms first to build your general skills. Then, in the final week before your interview, switch to cases from your target firm so that the style and pacing are fresh in your mind. For example, if you are interviewing with McKinsey, practice their interviewer-led format last so you are used to that specific dynamic on interview day.

 

Everything You Need to Land a Consulting Offer

 

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