SEO ROI Calculator
Calculate the return on investment of your SEO campaigns using monthly cost, traffic increase, conversion rate, and average order value.
SEO ROI (Return on Investment) measures how much profit your organic search campaigns generate relative to what you spend on them.
The core formulas:
Monthly Revenue from SEO = Traffic Increase × Conversion Rate × Average Order Value
Monthly Profit = Monthly Revenue − Monthly SEO Cost
ROI = (Monthly Profit / Monthly SEO Cost) × 100
What each variable means:
- Traffic Increase: the additional monthly visitors arriving via organic search, over and above what you had before the work started
- Conversion Rate: the share of visitors who buy or complete the goal, typically 1 to 5%
- Average Order Value (AOV): the mean amount per transaction. If customers reorder, lifetime value is the better figure
- Monthly SEO Cost: agency fees, freelancer pay, tool subscriptions, and your own hours priced at a real rate. Leaving your own time out is how SEO comes to look free
Worked example: You spend $2,000/month on SEO. Your organic traffic increases by 5,000 visitors. Your conversion rate is 3% and AOV is $75.
Monthly conversions = 5,000 × 0.03 = 150 Monthly revenue = 150 × $75 = $11,250 Monthly profit = $11,250 − $2,000 = $9,250 ROI = ($9,250 / $2,000) × 100 = 462.5%
Industry benchmarks:
- Average organic conversion rate: 2–5%
- Healthy SEO ROI: above 200%
- Break-even ROI: 0% (revenue equals cost)
- SEO typically takes 3 to 6 months to build momentum, so judge it over 12 rather than by month two. The calculator above shows both the mature monthly figure and a ramped first year, because the two are very different numbers
- Factor in customer lifetime value (LTV), not just the first purchase, for e-commerce sites
How we build and check this calculator
This calculator runs entirely in your browser, so the numbers you enter stay on your device. The math behind it is written by hand and tested against worked examples and standard references before the page goes live.
SuperGlobalCalculator is independently built and maintained. See how we build and verify our calculators.