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Master Market Sizing for BCG & Consulting Case Interviews
Rating: 4.7 out of 5(11 ratings)
494 students

Master Market Sizing for BCG & Consulting Case Interviews

Learn market sizing frameworks, tips, and real exercises to ace consulting case interviews with confidence.
Created byIan Glennon
Last updated 3/2026
English

What you'll learn

  • Master the core frameworks for market sizing questions in consulting interviews.
  • Learn top-down, bottom-up, and hybrid estimation techniques.
  • Develop the mindset and structured thinking needed for confident estimations.
  • Practice with real-world exercises and detailed solution walkthroughs.
  • Communicate answers clearly and logically under time pressure.

Course content

3 sections • 8 lectures • 2h 29m total length

  • How to Market Size13:58

    Learn a practical, flexible approach to market sizing by structuring problems, selecting top-down or bottom-up methods, and using reasonable estimates and key levers to assess market desirability.

  • Listen to Podcast Series When Not By Your Computer

Requirements

  • A desire to get into strategy consulting.
  • No prior experience required.
  • Basic math skills and comfort with simple calculations.
  • A desire to improve analytical and problem-solving skills.

Description

Crack Market Sizing Questions with Confidence – A Complete Guide for Case Interviews

Market sizing is one of the most common and challenging questions in consulting case interviews. Whether you're targeting firms like McKinsey, BCG, Bain, or other top companies, mastering market sizing is essential to stand out.

This comprehensive course takes you step-by-step through the key frameworks, mindset shifts, and practical techniques you need to estimate markets effectively and confidently under pressure.

What makes this course different? Unlike generic guides, this course offers: Clear explanations of multiple market sizing approaches – Learn the top-down, bottom-up, and hybrid methods. Mindset strategies to avoid common mistakes – Build intuition and structure your thinking. Hands-on practice with real case-style exercises – Work through diverse market sizing problems across industries. Detailed solution walkthroughs – Understand not just the "what," but the "why" behind every step.

By the end of this course, you'll be able to:

  • Tackle any market sizing question with clarity and confidence.

  • Break down ambiguous problems into structured, logical steps.

  • Develop an intuitive sense of magnitude and estimation accuracy.

Who is this course for?

  • Consulting candidates preparing for case interviews.

  • MBA students and graduates seeking a competitive edge.

  • Professionals wanting to sharpen analytical and estimation skills.

Course Content Highlights:

  • How to Market Size: Essential principles and proven techniques.

  • 6 Full-Length Market Sizing Exercises (e.g., Taxis in a city, Coffee shop demand, Mattress market, Internet users, Tree estimation).

  • Expert Walkthroughs and Tips: Learn from real examples and improve your approach.

Enroll today and master one of the most critical skills for consulting success!

This course is part of a premium end-to-end coaching program created by Ian Glennon, ex-BCG consultant, founder of Custom Case Coach, and one of the world’s top experts in consulting recruiting.

Who this course is for:

  • Consulting candidates preparing for case interviews.
  • MBA students aiming to sharpen estimation skills.
  • Job seekers targeting strategy, product management, or business roles.
  • Anyone interested in improving structured thinking and market analysis.

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