About
I'm a freelance SEO strategist based in India. I run HowCalculate.com, a set of free calculators for online sellers and marketers. They cover ROAS, break-even ROAS, CPA, CTR, and Stripe and other seller fees. Each one shows the formula and a worked example, so you can see where the number comes from. I'm always looking for feedback on which calculators to build next.
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Joined Product HuntOctober 12th, 2026
