SEO ROI Calculator

What Is SEO ROI?

SEO ROI measures the return you get from your investment in search engine optimisation. Unlike paid ads where you pay per click, SEO builds compounding value — the traffic you earn today continues arriving months and years later without ongoing ad spend. Calculating ROI helps you justify the investment, set realistic budgets, and compare SEO against other marketing channels.

How to Use the SEO ROI Calculator

Adjust the input fields to model your specific scenario. Enter your monthly SEO investment, expected traffic growth, and conversion metrics to see projected returns over time. Try different scenarios to understand how changes in budget or conversion rate affect your bottom line.

• Start with conservative estimates — it's better to under-promise and over-deliver.
• Factor in the compound effect: SEO traffic doesn't stop when you pause spending, unlike paid ads.
• Compare the projected ROI against your current cost per acquisition from other channels.
• Use the calculator to build a business case for increasing SEO investment when results justify it.

Why SEO Delivers Strong ROI

SEO consistently delivers one of the highest ROIs of any marketing channel because organic clicks are free. Once you rank, every visit costs nothing — compared to £2–10+ per click with Google Ads. A single page ranking well for a commercial keyword can generate thousands of pounds in revenue every month with no ongoing ad spend. The investment is upfront in content and optimisation, but the returns compound over time.

Frequently Asked Questions