Free tools for online stores

Quick answers to the questions store owners deal with every day. No sign-up, right in your browser.

• ROAS Calculator
  Calculates your ROAS (return on ad spend) and CoS from ad spend and net revenue. Formula: ROAS = net revenue ÷ ad spend. Working backwards, you can plan your ad budget or the revenue you need – built for store owners and Google Ads managers who want to assess a campaign quickly.

• CoS Calculator
  Shows what percentage of your revenue goes into advertising (cost of sales). Formula: CoS = ad spend ÷ net revenue × 100. Built for finance teams and management who compare advertising costs directly with their margin, like any other cost ratio.

• Google Ads Profit Calculator
  Calculates your true break-even ROAS, your target ROAS and the right tROAS for Google Ads – including VAT, returns, tracking settings and product groups. Formula: break-even ROAS = 1 ÷ contribution margin ratio. Built for merchants and decision-makers who want to steer Google Ads by contribution margin instead of revenue.