Ads calculator

ROAS calculator

Calculate actual ROAS, break-even ROAS, net profit after ads, and maximum ad spend using revenue and full ecommerce cost structure.

Inputs

Formula

ROAS by itself only measures revenue divided by ad spend. Break-even ROAS includes contribution margin before ads.

ROAS = revenue ÷ ad spend; break-even ROAS = revenue ÷ contribution margin before ads

How to read the result

  • If actual ROAS is above break-even ROAS, the campaign is profitable under the entered cost structure.
  • If actual ROAS is below break-even ROAS, revenue is not covering costs and ad spend.
  • Use conservative return and fulfillment rates before scaling spend.

FAQ

Why is my high ROAS still unprofitable?

Low contribution margin can make even a visually strong ROAS unprofitable. Fees, shipping, returns, and product costs matter.