About this tool
ROAS Calculator is a free, in-browser tool that measures the return on your advertising spend. Enter the revenue a campaign generated and the amount you spent, plus an optional profit margin, and it reports ROAS as a ratio and a percentage alongside profit and ROI. Everything is computed locally as you type; nothing is uploaded.
ROAS = revenue ÷ ad spend, shown as a multiple such as 4.00×; ROAS % is that ratio × 100. Profit = revenue − ad spend and ROI % = (revenue − ad spend) ÷ ad spend × 100. If you supply a profit margin, the break-even ROAS = 1 ÷ (margin ÷ 100) tells you the minimum ROAS at which the campaign covers its own cost.
Use it to judge whether a channel is profitable, to compare campaigns on a common scale, and to set the ROAS target your margins actually require. Currency values use your locale format and rates carry a percent sign.