Break-even ROAS calculator

Ad platforms report ROAS. Revenue divided by ad spend. And beginners are told to 'aim for 3×'. Whether 3× makes money depends entirely on your margin. This tells you your own break-even, and the most you can pay for one sale.

Selling price$Supplier cost$Shipping you pay$Stripe's 2.9% + $0.30 is included.

Profit before ads

$16.83

Max cost per sale (ads)

$16.83

Break-even ROAS

1.78×

At 3× ROAS you keep

$6.83

Any ad that costs more than $16.83 per sale loses money. Your ads need at least 1.78× ROAS to break even; at 3× you keep $6.83 per sale.