Free, no-signup tools to make smarter decisions about ads, pricing, and profit. Built by founders who got tired of doing the math wrong.
Find the minimum return on ad spend before you start losing money — and the ROAS you actually need to hit your margin target.
Open calculatorMost founders overestimate their margin by 20+ points. This calculator shows your real net margin after Shopify fees, shipping, returns, ads and overhead.
Open calculatorDiscover how many extra units you'd need to sell after a discount just to keep the same profit. Spoiler: it's almost always more than you think.
Open calculatorThe fastest unit-economics health check in eCommerce. See your LTV, ratio, and CAC payback period in seconds — with a clear interpretation.
Open calculatorStop stocking out and stop over-ordering. Calculates the exact reorder point and safety stock for any SKU based on demand variability and lead time.
Open calculatorSee the true annual cost of your returns — logistics, restocking, lost product — and what cutting the rate by one point would save you.
Open calculatorWe build software for Shopify operators. We use these calculations every day in our own brands and apps, and we figured the simpler ones don't need to be locked behind a signup wall. If you want them connected to your real Shopify data — that's what our apps do.