McKinsey Case Interview Examples: 5 Real Prompts & How to Crack Them
Real McKinsey case interview prompts are shorter and more pointed than candidates expect. Instead of "advise this company," you'll hear things like "the CEO wants to know whether to enter the German EV charging market — where do you start?" Below are five real-style McKinsey prompts with the cracking logic for each.
5 Real McKinsey Case Interview Prompts
1. Market entry: "Should our client launch a direct-to-consumer channel in Southeast Asia?" Structure fast: market size, channel economics, capability gaps, risks. Don't wander — the interviewer will feed exhibits on market growth and margins. Synthesize after each piece.
2. Profitability: "Our client's profits fell 15% in two years. Diagnose it." Go straight to a profit tree: revenues (price × volume, mix shifts) vs. costs (fixed vs. variable). McKinsey loves this prompt because it tests whether you decompose before guessing.
3. Market sizing: "How many electric scooters are sold in London each year?" Top-down logic, clean assumptions, round numbers. They grade your structure and sanity-checking, not the final number.
4. M&A: "Should our client acquire a smaller competitor?" Standalone value, synergies (revenue and cost), integration risks, alternatives to acquisition. Always ask what could go wrong — McKinsey tests judgment, not enthusiasm.
5. Operations: "A hospital chain's wait times doubled. Fix it." Process thinking: patient flow, bottlenecks, capacity vs. demand. Non-traditional industries appear often — don't panic, the structure transfers.
How to Crack These McKinsey Case Interview Examples
Every prompt above rewards the same muscles: 60-second structuring, live quantitative work, and relentless synthesis. The candidates who crack McKinsey cases aren't smarter — they've seen the patterns. They recognize a profitability prompt instantly, know the profit tree by reflex, and spend their energy on insight instead of structure.
That pattern recognition only comes from real prompts. Our 2027 McKinsey Solve Game, RedRock, Sea Wolf, Sustainable Futures Lab, Case Interview Interactive Simulations includes real McKinsey offline interview cases with full answers — actual prompts, exhibits, and the reasoning that passes.
McKinsey Case Interview Examples: Familiarity Is the Edge
Nobody walks into a McKinsey case and improvises brilliance. The candidates who look brilliant have seen 20 real prompts before. The ones who freeze are seeing their first. Which group you join is a preparation decision, not a talent lottery.
FAQ
Where can I find real McKinsey case examples? McKinsey publishes a few sample cases on its careers site, but the real interview prompts circulate through prep banks — including the real offline cases in our McKinsey prep package.
How many cases should I practice before McKinsey interviews? Quality beats quantity, but most successful candidates do 20–30 live practice cases plus real-prompt review. Start with real McKinsey-style prompts, not generic ones.
Are McKinsey cases mostly math? They're math-heavy but judgment-led. Expect calculations in every case, but the differentiator is what you conclude from the numbers.
Do McKinsey cases use exhibits? Constantly. Chart and table reading under time pressure is a core skill — practice it specifically, not just as a case afterthought.
Preparing for McKinsey's case interview? Our 2027 McKinsey Solve Game, RedRock, Sea Wolf, Sustainable Futures Lab, Case Interview Interactive Simulations has the exact questions and answers — $79 one-time, instant download.
