ROAS Calculator

How to use

1. 1Pick a mode: Solve for ROAS for a finished campaign, Solve for revenue or Solve for ad budget when you have a target ROAS, or Break-even ROAS to find the floor at your margin.
2. 2Enter the visible fields. For target ROAS, type a ratio (4 means 4:1, not 400). Use the quick chips for common targets and margins.
3. 3Optional but recommended: set your gross margin percent. The result panel then adds implied COGS, gross profit, contribution after ad spend, the break-even ROAS for that margin, and a verdict against it.
4. 4Pick a display currency. Formatting only; no exchange rates are fetched.
5. 5Use the channel comparison table to add Google, Meta, TikTok, Affiliate, Email, and other rows. The table ranks by ROAS, shows each channel's revenue share, and gives a blended ROAS across the portfolio.
6. 6Copy the summary, an individual row, or the channel table as TSV using the Copy buttons; the formatted output pastes cleanly into Google Sheets, Excel, Slack, or Notion.

About this tool

ROAS Calculator computes return on ad spend in your browser using the four framings marketers and ecommerce operators actually use day to day. In Solve for ROAS mode, enter ad spend and revenue attributed to the campaign. The tool reports ROAS as a ratio (4:1), as a multiple (4x), and as a percent (400%) at the same time, so you can paste whichever format the platform or stakeholder expects. It also derives ad ROI, which is ROAS minus 100 percentage points and the figure finance teams usually compare against. In Solve for revenue mode, enter ad spend plus the target ROAS you need to hit; the tool returns the gross revenue the campaign must generate to clear the target, plus the gross profit if you also set a margin. In Solve for ad budget mode, enter expected revenue and a target ROAS to get the maximum ad budget the target permits. In Break-even ROAS mode, enter your gross margin percent (revenue minus COGS as a share of revenue); the tool returns 100 divided by that margin, the ROAS where every extra dollar of ad spend is matched by a dollar of gross profit. Optional gross margin input is shared across the first three modes too: when set, every result includes implied COGS, gross profit, contribution after ad spend, and a green or red verdict against the break-even ROAS so you immediately know whether the campaign earns its keep after product cost. A second panel adds a multi-channel comparison table. Add a row for Google Search, Meta Ads, TikTok Ads, Affiliate, Email, Influencer, or any custom channel, and the tool ranks rows by ROAS, shows each channel's revenue share, and reports a blended portfolio ROAS at the bottom; copy the table out as tab-separated values for a spreadsheet or weekly review. Eight currencies (USD, EUR, GBP, CAD, AUD, JPY, INR, TRY) format every number through Intl.NumberFormat with the right symbol and decimal rules; no FX rates are fetched. A reference card explains how ROAS, ad ROI, and break-even ROAS relate, and a quick note flags that ROAS does not include returns, refunds, fixed costs, or fees and depends entirely on your attribution window. Useful for performance marketers writing weekly recaps, ecommerce operators sizing media budgets against margin, agencies setting tROAS bids on Google Ads and Meta Advantage+ campaigns, growth teams comparing channels by efficiency, and founders deciding whether a 3:1 ROAS is good enough at their gross margin. Everything runs locally; budgets, revenue figures, and channel data stay on your device.

Free to use. Works in your browser. No signup, no login.