Harshana · Growth Lab

Build · Free tools

Marketing maths, done in seconds

Free calculators in rupees, each with a short guide on what the number means and what to do next. No sign-up.

4.0x

ROAS calculator

Is your ad spend profitable? See ROAS, break-even ROAS and profit in rupees.

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₹500

CAC calculator

What does it cost you to win one new customer?

Coming soon
5.1

LTV : CAC calculator

Is each customer worth more than they cost to win?

Coming soon
95%

A/B test significance

Did version B really win, or was it luck?

Coming soon