Key Insights:
- Every Answer Is A Short Story: Consulting interview questions reward a clear point, one specific example and a result you can measure. Lists of adjectives don't score.
- Prepare Six To Eight Stories, Not 40 Answers: A small story bank covers almost every behavioral and PEI question. Map each story to the traits firms grade before you walk in.
- Fit Can Cost You The Offer: The case gets most of the prep time, but a weak "why consulting" or a vague leadership story can sink an otherwise strong interview.
Consulting interview questions come in two groups, the fit and behavioral questions that open almost every round and the case itself. This guide is for students and experienced hires preparing for McKinsey, BCG, Bain, Big 4 and other top firms. You'll get 40+ real questions grouped by type, sample answers for the ones that trip people up most, firm-by-firm differences, and a plan to prepare your stories in a few weeks.
We focus here on fit, behavioral and McKinsey PEI questions. For case prompts and worked answers, go to our guide to case study interview questions.
What Do Consulting Interview Questions Test?
Consulting interview questions test whether you can solve business problems (the case) and whether a partner would put you in front of a client (fit). Most rounds pair 10 to 25 minutes of fit questions with a 25 to 35 minute case interview, then a few minutes for your questions.
The case is the biggest filter in consulting hiring. But fit is where many strong case performers lose offers. Interviewers write up both halves, and a forgettable story or a generic "why us" gives the hiring committee a reason to say no.
Here is what interviewers grade in the fit portion:
- Structure: Do you answer in a clear order, with the point first?
- Impact: Did your actions change the outcome, and can you put a number on it?
- Leadership and teamwork: Do people follow you, and do you make the team better?
- Self-awareness: Can you name a real weakness or failure and what you learned?
- Motivation: Do you know what consultants do, and why you want this firm?
- Communication: Would a CEO enjoy 30 minutes with you?
What Background And Resume Questions Do Consulting Interviews Ask?
Background questions open nearly every consulting interview, and "Tell me about yourself" is the most common of all consulting interview questions. Your interviewer has probably skimmed your resume for two minutes, so this is your chance to set the story they remember.
- Tell me about yourself.
- Walk me through your resume.
- Why did you choose your major?
- You studied [non-business major]. Why consulting?
- What did you do at [company], and what was your biggest contribution?
- What's something that isn't on your resume?
- Why are you leaving [current industry] for consulting?
- Did you receive a return offer from your internship?
- What do you do outside of work or school?
How Should You Answer "Tell Me About Yourself"?
Answer in 60 to 90 seconds, in time order, and end on why you're in the room today. Pick two or three moments that show a pattern, such as solving problems, leading people or moving between industries.
Sample answer: "I grew up in Ohio, where my parents ran a small HVAC business, so I spent summers doing their invoicing and learned early how cash flow can make or break a company. At Michigan I studied economics and led our student consulting club, where I ran a project that cut a local food bank's delivery costs by 18%. Last summer I interned in corporate strategy at a medical device company and helped size a $400 million market for a new product line. That work confirmed I want to solve a new problem every few months, which is why I'm excited to talk with you about consulting."
How Do You Walk Through Your Resume?
Go in time order and spend most of your time on the last two roles. For each one, give the role, one result and the reason you moved on. Keep it under two minutes, and stop so the interviewer can choose what to dig into.
What Should You Say Is Not On Your Resume?
Share something true and specific that shows a trait firms value. "I trained for and finished a marathon after knee surgery" shows drive. "I like to travel" doesn't tell them anything.
Sample answer: "I taught myself Spanish over two years using podcasts on my commute, and last spring I ran a two-week volunteer clinic in Guatemala entirely in Spanish. I like setting a goal that feels a little too big and then building a plan to hit it."
How Do You Explain A Career Switch Into Consulting?
Frame the switch as a pull toward consulting, not a push away from your current job. Name what you've learned, what you want more of and how consulting gives you that.
Sample answer: "In three years as a nurse manager, my favorite work was the operations project where I redesigned shift handoffs and cut overtime by 12%. I realized I love fixing how an organization works, not just working inside it. Consulting lets me do that across many hospitals and health systems, and my clinical background helps me earn trust with frontline staff fast."
How Do You Answer "Why Consulting" And "Why This Firm"?
Answer "why consulting" with two or three reasons tied to your own experience, and answer "why this firm" with details you could only know from talking to its people. These two consulting interview questions come up in almost every first round, and generic answers stand out for the wrong reason.
- Why consulting?
- Why our firm?
- Why us instead of [competitor firm]?
- What do you think a consultant does day to day?
- What skills make a good consultant?
- Where do you see yourself in five years?
- What kinds of projects or industries interest you?
- What other firms are you interviewing with?
What Does A Strong "Why Consulting" Answer Sound Like?
Weak answer: "I want to learn a lot, work with smart people and keep my options open."
Strong answer: "Two reasons. First, my best work so far has been short, high-stakes problems, like the three-week pricing review I ran at my internship that changed how we quoted large accounts. Consulting gives me that kind of problem every few months. Second, I want to build skills fast, and I've seen it firsthand: my friend Maya went from analyst to running client workstreams in under two years. I want that pace of growth."
The weak answer could come from anyone. The strong one is specific, ties to the candidate's own history and shows they know what the job involves. For more examples, see our full guide on how to answer "why consulting".
How Do You Answer "Why This Firm"?
Use a simple formula: one thing about the firm's work, one thing about its people or culture, and one conversation you had with someone there. Name the consultant you spoke with, what they told you and why it stuck.
Sample answer: "I spoke with three people in your Chicago office, and each one described the same thing: junior people get real client time early. Priya told me she presented to a COO in her first month. I also want to work on healthcare, and your recent work with regional health systems is exactly the kind of project I want to learn from."
Firm-specific answers take research. Start with our guides to why McKinsey, why BCG, why Bain and why Deloitte, then do your own networking to add the details no website gives you.
What Behavioral And McKinsey PEI Questions Should You Expect?
Behavioral questions ask you to describe a real past situation, usually starting with "Tell me about a time when..." Every firm asks them, and McKinsey turns them into the Personal Experience Interview (PEI), where you tell one story in depth and answer many follow-up questions.
- Tell me about a time you led a team through a difficult situation.
- Tell me about a time you changed someone's mind.
- Tell me about a time you went beyond what was expected of you.
- Tell me about a time you failed. What did you learn?
- Tell me about a time you disagreed with your manager.
- Tell me about a time you had to work with incomplete information.
- Tell me about a time you dealt with a difficult team member.
- Tell me about a time you set a goal and fell short.
- Tell me about an ethical dilemma you faced and what you did.
- Tell me about a time you worked under heavy time pressure.
How Should You Structure A Behavioral Answer?
Use the STAR method: Situation, Task, Action, Result. Spend most of your time on Action, because that's where interviewers see what you did, not what your team did.
- Situation: One or two sentences of context. Who, where, what was at stake.
- Task: Your specific responsibility or goal.
- Action: Three or four steps you took, in order, using "I" and not "we."
- Result: The outcome, with a number if you have one, and what you learned.
What Does McKinsey Look For In The PEI?
McKinsey's PEI grades you on four traits called Connection, Drive, Leadership and Growth. Each PEI segment focuses on one trait, runs 20 to 25 minutes and can include 10 to 25 follow-up questions. Read our full McKinsey PEI guide for example questions under each trait.
Because the follow-ups go deep, a memorized script breaks down fast. Pick stories where you know every detail: what you were thinking, what others said, and what you'd do differently.
Sample PEI Story: "Tell Me About A Time You Changed Someone's Mind"
Situation: "During my internship at a regional grocery chain, I was asked to help reduce food waste in the bakery department, which was throwing out about 9% of what it baked."
Task: "The bakery manager at our largest store had run the department for 15 years. He believed waste was the price of full shelves and didn't want to change his ordering."
Action: "I asked to shadow him for two mornings before proposing anything, so I could see his side. I learned his real fear was empty shelves at 5 p.m. and complaints from regulars. So I pulled six months of hourly sales data and showed him that 80% of his late-day sales came from just four products. I proposed a two-week test: bake less of everything else after 2 p.m., but keep those four fully stocked. I also asked him to set the rules for the test, so it was his experiment, not mine."
Result: "Waste fell from 9% to 5% during the test with no drop in sales, and he presented the results to the regional team himself. The chain rolled it out to 12 more stores. I learned that people move faster when you start with their concern instead of your data."
Follow-ups to prepare for: Why did you shadow him first? What would you have done if he refused the test? What did you say in your first conversation? What would you change if you did it again?
How Do You Answer Strengths, Weaknesses And Personality Questions?
Answer strengths and weaknesses questions with one trait and one example each. Interviewers want proof of self-awareness and growth, not a perfect candidate. These questions also show up near the end of a round, when you're tired, so practice them out loud.
- What is your greatest strength?
- What is your greatest weakness?
- How would your friends describe you in three words?
- What accomplishment are you most proud of?
- What's the toughest feedback you've received?
- How do you manage your time when everything is urgent?
- What's something you believe that most people disagree with?
Greatest Strength: Weak Vs Strong
Weak answer: "I'm a hard worker and a perfectionist. I always give 110%."
Strong answer: "My biggest strength is breaking a messy problem into pieces people can act on. When our case team had four days left and no clear story, I mapped every open question on one page, assigned owners and set two check-ins a day. We finished a day early and placed second out of 30 teams."
Greatest Weakness: Weak Vs Strong
Weak answer: "I care too much about my work."
Strong answer: "I tend to take on too much myself instead of delegating. In my club leadership role, I rewrote a teammate's slides the night before a pitch, and he felt sidelined. Since then I agree on a review plan up front and give feedback early, so I fix problems through the team instead of around it. I still have to watch it when deadlines get tight."
Pick a real weakness that won't block you from doing the job, show what you're doing about it, and admit it's still a work in progress. For more ideas, see our list of leadership weaknesses and how to frame them.
How Do Consulting Interview Questions Differ By Firm?
Most firms ask the same core consulting interview questions, but they weight them differently. McKinsey goes deepest on one story at a time, BCG and Bain mix shorter fit questions with candidate-led cases, and Big 4 firms often lean more on standard behavioral questions.
| McKinsey | Personal Experience Interview in each round: one story, one trait (Connection, Drive, Leadership or Growth), many follow-ups. Interviewer-led case. |
| BCG | Shorter fit questions at the start of each interview, often "why BCG" and a behavioral story. Candidate-led case, sometimes with a curveball. |
| Bain | Strong focus on culture, teamwork and "why Bain." Candidate-led case, and interviewers may pressure test your answers. |
| Deloitte | Behavioral questions in STAR format, "why Deloitte" and questions about the service line you're applying to. Case rounds vary by practice. |
| Accenture | Behavioral questions plus questions about technology and how you'd work with clients on large programs. |
| EY-Parthenon and PwC | Behavioral and motivation questions, then case interviews for strategy roles. Expect "why our firm" and "why this practice." |
You don't need a separate prep plan for every firm. One strong story bank works everywhere. Adjust the depth for McKinsey, and the "why us" answer for each firm.
What Case Interview Questions Will You Get?
Almost every consulting interview at a strategy firm includes at least one case, where you solve a business problem live with your interviewer. Common case types include profitability, market entry, pricing, M&A and market sizing.
We keep case prompts and worked answers in their own guides so you can practice them properly:
- Case Study Interview Questions and Answers, organized by case type
- Case Interview Examples from top firms, with casebook PDFs
- Market Sizing Questions, with a step-by-step method
- Case Interview Frameworks, to build your structure
Many firms also screen candidates with an online test before the first round, such as the McKinsey Solve game or the BCG online case.
What Questions Do Experienced Hires And Manager Candidates Get?
Experienced hires get the same core consulting interview questions, plus questions about why they're switching now, what their industry knowledge brings to clients, and how they've managed people and senior stakeholders. Manager-level candidates should expect at least one question about developing a team and one about owning a client relationship.
- Why consulting, and why now, after [X] years in industry?
- How would your industry experience help our clients?
- Tell me about a team you managed. How did you develop your people?
- Tell me about a time you managed a difficult senior stakeholder.
- What business result are you most proud of, and what was your role?
- How would you handle a team member whose work isn't meeting the bar?
- Have you ever sold or expanded work with a client or internal customer?
- How do you feel about joining at a level below your current title?
Sample answer (why now): "I've spent six years in supply chain at a consumer goods company, and the last two leading a cost program that saved $30 million. The part I enjoyed most was building the business case and getting five departments to agree on it. I want to do that across many companies, and I think my operations background will help clients trust that our recommendations will work on the ground."
Lead with results and scope: team size, budget, revenue or savings. If you're making a mid-career move, our guide on how to become a consultant as an experienced hire covers the resume and networking side.
What Questions Should You Ask Your Interviewer?
Ask two or three specific questions that show you've done your research and care about the work. Avoid anything you could find on the firm's website, and don't ask about salary or vacation in an interview.
- What project are you on now, and what's the hardest part of it?
- What surprised you most when you joined the firm?
- How do new consultants get staffed on their first projects?
- What separates the consultants who move up fastest?
- How does the office build community outside of client work?
- What kind of feedback do new hires get in their first six months?
- How has AI changed the way your teams work?
- What's a recent project you were proud of?
- What would you tell yourself on your first day here?
- Is there anything in my background you'd like me to explain further?
See our full list of questions to ask at the end of an interview, plus tips for coffee chats before you apply.
How Do You Prepare For Consulting Interview Questions In 2 To 4 Weeks?
You can prepare for fit and behavioral questions in two to four weeks if you build a story bank first, then practice out loud with feedback. Case prep takes longer, so start your fit work alongside it, not after it.
- Week 1, Build Your Story Bank: Write six to eight stories from the last few years. Each needs a clear problem, your actions and a measurable result.
- Week 1, Map Stories To Traits: Fill in the matrix below so every trait has at least two stories. Avoid using one story for everything.
- Week 2, Write Your "Why" Answers: Draft "tell me about yourself," "why consulting" and "why this firm." Update the firm answer after each networking call.
- Weeks 2 to 3, Practice Out Loud: Record yourself, then cut anything over two minutes. Ask a friend to fire follow-up questions at you, PEI style.
- Weeks 3 to 4, Run Mock Interviews: Do at least three full mock rounds that combine fit and case, ideally with a former consultant who knows how firms score.
| Leadership | A time you led a group to a result, with or without a title |
| Connection (persuasion) | A time you changed the mind of someone senior or skeptical |
| Drive | A time you set an ambitious goal and pushed through setbacks |
| Growth | A failure or tough piece of feedback and what you changed |
| Teamwork and conflict | A disagreement you resolved without damaging the relationship |
| Ambiguity and pressure | A time you delivered with incomplete data or a tight deadline |
Fit answers improve fast with expert feedback. MC's Fit Interview Bootcamp walks you through building and testing your stories, and our Black Belt program pairs you with former MBB consultants for 1:1 coaching on fit and case. About 80% of Black Belts land at least one offer, compared with under 3% industry-wide.
Where Can You Download A List Of Consulting Interview Questions?
You can download every question in this guide, plus space to draft your answers and map your stories, in our free Consulting Interview Question Bank (PDF). Print it, fill in your stories, and bring your best versions to every mock interview.
Fit questions feel open-ended, but they follow a pattern you can learn. Build your stories now, practice them out loud, and you'll walk into every round knowing exactly what you want the interviewer to remember.
Additional Resources:
- Case Interview: Complete Prep Guide
- McKinsey PEI: Personal Experience Interview Guide
- How To Answer "Why Consulting" In An Interview
- The STAR Method For Behavioral Interviews
- What Are Behavioral Interviews?
- Case Study Interview Questions and Answers
- Consulting Resume: Complete Guide
- Consulting Salaries Report
- MC Job Board
Consulting Interview Questions FAQs
The most common consulting interview questions are "Tell me about yourself," "Why consulting?," "Why our firm?" and behavioral questions such as "Tell me about a time you led a team" or "Tell me about a time you failed." Almost every round also includes a case interview.
The fit part usually runs 10 to 25 minutes at the start of each interview, followed by a 25 to 35 minute case and a few minutes for your questions. At McKinsey, the Personal Experience Interview can take 20 to 25 minutes on a single story.
The case is the biggest filter in consulting hiring, but interviewers score fit in every round. A weak story or a generic "why us" answer can cost you an offer even after a strong case, so prepare both.
A standard fit interview asks several short behavioral questions. The McKinsey PEI asks for one story about one trait, then goes deep with many follow-up questions about what you did, why you did it and what you learned.
Prepare six to eight strong stories and map each one to the traits firms grade, such as leadership, persuasion, drive and growth. Have at least two stories for each trait so you don't repeat yourself across rounds.
No. Memorize the key points and numbers of each story, not a script. Scripted answers sound flat and break down under follow-up questions, especially in the McKinsey PEI.
Big 4 firms ask many of the same questions but often lean more on standard behavioral questions in STAR format and on questions about the specific service line you're applying to. Strategy roles at EY-Parthenon, PwC and Deloitte also include case interviews.
Ask two or three specific questions about the interviewer's work, how new consultants get staffed, or what separates people who move up fastest. Skip anything you could find on the firm's website, and save salary questions for after an offer.