Business math, made simple for everyone.
100 free calculators for entrepreneurs, students and anyone who has ever watched a pitch show and wondered how the Sharks worked out those numbers.
100 free calculators for entrepreneurs, students and anyone who has ever watched a pitch show and wondered how the Sharks worked out those numbers.

Tank Metrics is a free collection of 100 simple business calculators built for entrepreneurs, small business owners, students, and anyone who has ever watched a pitch show and wondered, "How do they work out those numbers?"
Whether you're figuring out your profit margins, valuing your startup before a big pitch, checking if your customer economics make sense, or just splitting a bill with friends — Tank Metrics gives you instant, easy-to-understand answers. No sign-ups, no spreadsheets, no jargon.
We built this site with beginners in mind. Every calculator comes with a plain-language explanation, so you're not just getting a number — you're understanding what it means and why it matters. From core startup metrics like EBITDA, LTV:CAC, and burn rate, to everyday tools like EMI calculators, tip splitters, and savings goal planners, Tank Metrics covers the full journey — from your first paycheck to your first pitch.
Founder, Tank Metrics — Bangalore, India
Tank Metrics was founded by Mk Aamir, based in Bangalore, India. Frustrated by how confusing and jargon-heavy most financial tools were, Mk Aamir set out to build a place where beginners, students, and first-time founders could get clear, honest answers to their money questions in seconds — no finance degree required.
What started as a small set of calculators has grown into a complete toolkit covering profitability, valuation, growth, pricing, and everyday money basics — all built with one simple mission: make business math easy for everyone, one calculator at a time.
Ready to run your own numbers?
🔍 Explore the Calculators