Estimation Questions
How many ping pong balls fit into a helicopter? Google and many other tech companies are infamous for asking seemingly ridiculous estimation questions, also known as Fermi Problems. These questions are common in product management interviews.
Complete interview walkthroughs
Comprehensive estimation fact sheet
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Vetted by FAANG PMs
4.8/5
37,900+ students
Updated Sep 2026
Interview prep trusted by 1M+ candidates who've landed jobs at
What you'll find in this course
14 lessons
7 videos
4 hours
Estimation Questions
2 modules
14 lessons
7 videos
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