Free tool

ACOS Calculator for Amazon PPC

Calculate ACOS, TACOS, ROAS and your break-even ACOS in seconds — and see instantly whether your advertising actually pays off.

Your result

ACOS25.0 %Profitable — ACOS below break-even
ROAS4.0×
TACOS10.0 %
Break-even ACOS30.0 %

Simplified model. The break-even ACOS equals your margin before ad costs — if your ACOS is below it, the campaign runs profitably.

ACOS, TACOS and break-even — briefly explained

ACOS (Advertising Cost of Sale) = ad spend divided by ad sales. TACOS relates ad spend to total sales and shows how dependent your business is on advertising. The break-even ACOS equals your margin before ad costs: as long as your ACOS stays below it, you earn money on every advertised order. With the AdOptimizer engine, Faktor400 computes a dynamic target ACOS per product — including concrete recommended actions.

Frequently asked questions

Dynamic target ACOS — per product, automatically

The calculator shows the status quo. With the AdOptimizer engine, Faktor400 recommends a product-specific target ACOS — with a confidence score and concrete campaign actions.