Launched this week
GrowthMath
Free marketing calculators that explain the math
3 followers
Free marketing calculators that explain the math
3 followers
11 free calculators for marketers, affiliates and store owners: ROAS + break-even ROAS, CPM/CPC/CPA, max CPA, affiliate EPC, LTV:CAC, margin vs. markup, UTM builder, SERP preview and A/B significance. No signup, everything runs in your browser (even the CSV tool), and each result comes with the formula, benchmarks and what the number means for your business.
Hey Product Hunt! I'm Adam, a performance and affiliate marketer.
I kept rebuilding the same spreadsheets: break-even ROAS, the max CPA a campaign can survive, which affiliate offer actually pays more per click. Most free calculators online give you a number with no context, sit behind a signup wall, or quietly use the wrong formula (margin vs. markup trips up a lot of people).
So I built GrowthMath:
- 11 calculators, free, no signup
- Everything runs in your browser - even the Dormant Affiliate Finder, which reads your CSV locally and never uploads it
- Every tool shows the formula, typical benchmarks and what the result means
My favourite is the ROAS calculator: it shows your break-even ROAS from your margin, so you can see when a green-looking 3x campaign is actually losing money.
What calculator do you keep rebuilding that should be next? I'm picking the next tool from this thread.