Marketing calculators that check your margin, not just the ratio

Break-even ROAS is 100 divided by your gross margin percentage. At a 40% margin, the break-even is 2.5x: RM1 of ad spend returns RM2.50 of revenue, which is exactly RM1.00 of gross profit, so the ads pay for themselves and nothing more. Anything above 2.5x adds profit. Anything below it loses money after the ad cost.

ROAS measures revenue, not profit. At a 15% margin, a 4x ROAS returns only 0.6 of gross profit per RM1 spent (4 x 0.15), so the campaign loses money before overheads. Compare the measured ROAS with the break-even ROAS for your margin to see the real position.

Below 1 means a customer is worth less than they cost to win, so each new customer loses money. From 1 to 3 is thin, with little room for error in your estimates. 3 or above is generally treated as healthy. Also check payback months: a healthy ratio that takes two years to recover the acquisition cost ties up cash.

Payback months equal CAC divided by monthly gross profit per customer. Monthly gross profit is AOV x gross margin x purchases per year, divided by 12. The estimate assumes purchases are spread evenly across the year and ignores retention decay, so treat it as a planning figure.

No. It only changes the currency symbol on money results. Enter every value in the same currency. If your ad account and sales are in different currencies, convert the figures first, using the rate for the same period.

No. Every calculation runs in your browser. Nothing is sent to a server or saved, and reloading the page clears the inputs.