You need ROAS for a channel or campaign from attributed revenue and ad spend.
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ROAS Calculator
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ROAS Calculator
Structured inputs and readable results — copy URLs, scan limits, and review findings without digging through JSON.
ROAS = revenue ÷ spend. Use attributed revenue for the channel you are reviewing.
Results
WaitingResults appear here
Fill the form and run the tool — outputs are structured cards, not a raw JSON dump.
Free · API · MCPToolYour platform
Use ROAS Calculator three ways
The free ROAS Calculator on this page works in your browser. The same workflow is available via REST API for apps and via MCP for Cursor, Claude, and other agents — one API key, one plan, one quota. This tool is part of the marketing-apis module under Marketing Tools.
- Free in browserUse ROAS Calculator here — no account required.
- REST APICall from your server with
X-Api-Key. - MCP for agentsConnect Cursor or Claude to ToolYour MCP with the same key.
- 1. Get an API keySign in and open Dashboard → API Keys (works for REST and MCP).
- 2. Call or connectUse the REST API from your server, or paste the MCP URL into your agent config.
- 3. Same qualityOutput matches the free web tool across all three surfaces.
What is ROAS Calculator?
You need ROAS for a channel or campaign from attributed revenue and ad spend. ToolYour ROAS Calculator computes ROAS = revenue / spend and returns a formatted multiple plus the formula. It does not pull platform data or attribute conversions. Same route via REST and MCP (POST /api/v1/marketing-apis/roas-calculator).
What are common questions about ROAS Calculator?
What inputs do I need?
Revenue (or return) and spend (adSpend/cost). Spend must be greater than zero.
Is this the same as ROI?
No. ROAS is revenue ÷ spend. ROI typically nets cost from profit. Use the formula that your finance team defines.
Can agents call this in a reporting playbook?
Yes — same route via REST and MCP with one API key, at a low 1-credit cost suited to frequent planning loops.
What are the key features of ROAS Calculator?
Visible formula
ROAS = revenue / spend with formatted Nx output.
Low credit cost
1 credit per API/MCP call for planning loops.
How do you use ROAS Calculator?
Enter attributed revenue and spend
Use the same window and currency for both.
Read ROAS
Compare to target; pair with CPA/CAC for unit economics.
Why this tool exists
ROAS is the fastest read on whether a channel or campaign is worth scaling, but the formula (revenue ÷ spend) is easy to fumble under deadline pressure — mixing up gross vs. net revenue, or dividing the wrong way. ROAS Calculator exists so the number and the formula are both visible and auditable.
Problems it solves
Spreadsheet formulas get copy-pasted wrong across rows, and a report without the visible formula invites someone to ask 'wait, is that revenue over spend or spend over revenue?' in a client meeting. A calculator that always shows the formula next to the answer removes that ambiguity.
Common use cases
- Agency client reporting: computing ROAS for a monthly deck where revenue and spend totals are already pulled from the ad platform.
- In-house weekly review: a quick channel-by-channel ROAS check before a Monday budget meeting.
- Agent/MCP: an agent computing ROAS as one step in a larger reporting playbook that already has revenue/spend totals.
- QA before spend: sanity-checking a projected ROAS before increasing budget on a channel.
Honest scope
This tool computes revenue ÷ spend from the numbers you give it — it does not pull data from any ad platform, does not attribute conversions to a channel, and does not distinguish gross from net revenue for you. Feed it the numbers your attribution model already produced.
Where do you browse more marketing tools tools?
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Browse the full Marketing Tools category on ToolYour.
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