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Website Growth Audit

SEO ROI Calculator

See what an extra few thousand visitors would actually be worth to your business, and whether SEO investment pays back.

SEO ROI Calculator

Estimate the monthly revenue you're leaving on the table by ranking lower than your competitors.

Unlock the full PDF report

Includes net uplift after SEO spend, estimated ROI, payback notes and a copy you can share with your team.

How to read these numbers

Monthly revenue today = current visitors × visitor-to-enquiry rate × enquiry-to-customer rate × customer value. This is what your site is generating right now from organic traffic (assuming all visitors are organic).

Monthly revenue at target = the same calculation at your target traffic level. The gap between the two is what SEO investment is buying you.

Net uplift after SEO spend = monthly uplift minus your monthly SEO investment. ROI = that net uplift as a percentage of the spend.

What this calculator assumes

  • Conversion rate and close rate stay the same as traffic grows. In practice they vary by query, landing page, device, offer and audience, so replace this assumption with channel data.
  • Customer value is treated as one-off. If you have repeat custom, multiply by average customer lifetime.
  • The scenario holds traffic steady at each input. Real organic traffic can grow, plateau or decline as demand, competitors and search systems change.

Next steps

If the numbers look like SEO is worth the investment, request a free growth audit. We'll look at your actual site, your competitors, and tell you whether the target traffic is realistic in your niche.

Frequently asked questions

Is this a realistic SEO ROI estimate? +
It's a directional estimate. Real SEO ROI depends on niche competitiveness, content quality, and how well you convert traffic. The calculator uses your own conversion rate and customer value, so the relative numbers are meaningful even if the absolutes shift in practice.
How long does SEO take to work? +
There is no fixed timetable. It depends on discovery, eligibility, current visibility, demand, competition, implementation and authority. Treat the calculator as a scenario model and replace assumptions with measured data over time.
What is a realistic monthly SEO spend? +
Scope the work required before choosing a budget. Technical remediation, original content, local evidence, digital PR and measurement have different costs. A low or high monthly number alone says nothing about quality or expected return.
Is SEO better than Google Ads? +
They answer different needs. Paid search can test demand quickly but requires ongoing spend; organic search can build durable discovery but is not free or guaranteed. Compare qualified customer acquisition cost, margin, capacity and time horizon.
Why does my conversion rate matter so much? +
Because the same traffic with double the conversion rate = double the revenue. Often, fixing the website pays back faster than getting more traffic to it.
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