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Campaign ROI Calculator

Profit, ROI, ROAS and payback from two numbers.

Runs in your browserUpdated 2026-11-10 Report a problem

What this campaign roi calculator does

Campaign ROI Calculator turns revenue and cost into four numbers: profit, ROI, ROAS and an optional payback period. ROI is profit divided by cost, while ROAS is revenue divided by cost — related measures that answer different questions.

The distinction matters. A campaign with 3× ROAS and a 50% margin is not returning three times its cost in profit. Use ROI to judge profitability and ROAS to compare revenue efficiency across channels.

Why use it

Decide whether a campaign covered its costs.
Compare revenue efficiency between channels.
Estimate how long a subscription campaign takes to pay back.

How to use it

1Enter the revenue attributed to the campaign.
2Enter the full cost, including ad spend, fees and production.
3Add monthly revenue if you want a rough payback estimate.

Worked examples

Profitable

Input

Revenue 12,400 · cost 4,000

Output

Profit 8,400 · ROI 210% · ROAS 3.10×

Break-even

Input

Revenue 4,000 · cost 4,000

Output

Profit 0 · ROI 0% · ROAS 1.00×

Common mistakes

Using revenue instead of gross profit when judging profitability.
Leaving out production, software or agency fees that belong in cost.
Comparing ROAS across channels with different margins as if it were profit.

Frequently asked questions

What is a good ROI?

It depends on the business and the time horizon. A positive ROI means the campaign covered its cost; whether it is good depends on the alternative uses of that budget.

Why is ROI different from ROAS?

ROAS compares revenue to cost. ROI compares profit to cost. A 4× ROAS with a 25% margin returns the same amount spent, which is break-even, not a 300% profit.

How is payback estimated?

Cost divided by monthly revenue, rounded up. It assumes steady revenue and ignores discounting, churn and seasonality.

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