Free tools for paid ads and business math

Roughly how much of your Google Ads budget is likely being wasted.

Return on ad spend as a ratio and a percentage, with break-even check.

CTR, CPC, CPM, CVR, CPA and ROAS from clicks, impressions, cost, conversions.

ACOS, TACOS and break-even ACOS from ad spend, ad revenue and margin.

A guide price range for Google Ads or Meta ads management.

Final price after a discount, plus margin impact if you enter your cost.

Add or remove VAT and see net, VAT amount and gross clearly.

Add or remove sales tax to get pre-tax, tax amount and total.

Convert between cost, markup, margin and selling price.

Three live modes: percent of a number, part as a percent of whole, and percentage change.