ROI // the business case
SEO ROI calculator
A free SEO ROI calculator that turns a traffic uplift into a return-on-investment number. Enter your sessions, conversion rate and order value, set a target, and forecast the revenue, ROI and break-even.
$ runs in your browser · nothing stored · no signup
// your numbers
// projection (monthly)
Extra sessions
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Extra conversions
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Extra revenue
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Net gain
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ROI
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Break-even sessions
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Directional projection from your inputs — not a guarantee. Currency is whatever you entered.
Why model SEO ROI at all?
SEO competes for budget against channels with a clean cost-per-result. The way you win that argument is to translate a traffic uplift into the only number a CFO cares about: revenue. This calculator does the arithmetic so you can pressure-test a target before committing — and see the break-even that tells you whether the goal is even worth it.
The SEO ROI formula
The return on investment of SEO comes down to one line:
ROI = (revenue from SEO − cost of SEO) ÷ cost of SEO
Multiply by 100 for a percentage. Everything else is just getting to "revenue from SEO." This tool builds it up from the inputs you control:
extra sessions = monthly sessions × target uplift %extra conversions = extra sessions × conversion rateextra revenue = extra conversions × average order valueROI % = (extra revenue − monthly investment) ÷ monthly investment
A worked example
Say you're at 10,000 organic sessions a month, converting at 2%, with an average order value of $100, and you spend $2,000 a month on SEO. You target a 30% traffic uplift.
- Extra sessions: 10,000 × 30% = 3,000
- Extra conversions: 3,000 × 2% = 60
- Extra revenue: 60 × $100 = $6,000
- ROI: ($6,000 − $2,000) ÷ $2,000 = 200%, a net gain of $4,000/mo
Change one input and the whole picture moves — that's the point. Run your own numbers above.
How to measure SEO ROI honestly
Forecasting is the easy half. Proving it after the fact is where most reports get sloppy. Track organic sessions, conversions and revenue in analytics, attribute closed revenue back to the organic landing pages that earned it, and weigh it against spend over the same window. Two things to stay honest about: assisted conversions — organic often opens the relationship and another channel closes it, so don't double-count or under-count — and ramp time. SEO compounds over months, so judge it on a trailing window, not week one.
The honest caveat: this is a forecast built on your assumptions. The uplift is the variable that's hard to hit — that's the actual work, and it's what a fractional SEO engagement or a longer growth program is built to deliver. If you want a grounded estimate of what's achievable for your site before you model anything, start with a free AI SEO audit or a straight conversation.
// use them together
The rest of the toolbox
Every tool does one job. Run them together and you cover AI readiness, on-page signals and the business case — the whole loop, in your browser, no signup.
AI readiness
Make sure the engines can reach, parse & cite you.On-page & technical
Tighten the signals on every page and across markets.Planning
Make the business case before you spend.// questions
FAQ
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