Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Google Ads ROAS Calculator

Quickly measure how much revenue you earn for every dollar spent on Google Ads. Use it after each campaign to evaluate efficiency and decide whether to scale or pause ad spend.

Ad Spend ($)

Revenue Generated ($)

Fill in the required fields to see your result.

Ecommerce

Amazon FBA Fees Calculator

Estimate Amazon FBA fulfillment fees based on your product's weight, package volume, and base rate tier. Helps sellers protect margins before listing a new product.

Product Weight (lbs)

Package Volume (cubic inches)

Base FBA Rate ($)

Fill in the required fields to see your result.

Key differences

	Google Ads ROAS Calculator	Amazon FBA Fees Calculator
Category	Ecommerce	Ecommerce
Inputs required	2	3
Result	ROAS (x)	Estimated FBA Fees ($)
What it does	Quickly measure how much revenue you earn for every dollar spent on Google Ads. Use it after each campaign to evaluate efficiency and decide whether to scale or pause ad spend.	Estimate Amazon FBA fulfillment fees based on your product's weight, package volume, and base rate tier. Helps sellers protect margins before listing a new product.