Free SEO ROI Calculator
Type into the SEO ROI calculator what you pay for SEO, how many extra visits you expect and what a new customer is worth. You’ll see the enquiries, customers and value that could bring, and what you get back for every £1. It’s free, and it all runs in your browser, so nothing you type is sent anywhere.
- Free no sign-up and no email needed
- Private nothing you type leaves your browser
- Your numbers no made-up industry averages
How the calculator works
Return on investment compares what SEO brings in with what it costs. The sums are short, and you can check each one by hand. The answer is only as good as the numbers you put in, so treat it as a plan to test, not a promise.
| You get | The sum | Example |
|---|---|---|
| Extra enquiries | Extra visits × enquiry rate | 200 × 3% = 6 enquiries |
| New customers | Enquiries × share you win | 6 × 25% = 1.5 customers |
| Value of new customers | Customers × value of one | 1.5 × £400 = £600 |
| Value minus SEO cost | Value − monthly cost | £600 − £360 = £240 |
| Value for every £1 | Value ÷ monthly cost | £600 ÷ £360 = £1.67 |
The examples only show the sums. We don’t know your market, so the calculator does not fill in an industry average for you.
Why SEO returns build up slowly
SEO usually takes 3 to 6 months to show results, so the first months often cost more than they bring in. The calculator shows a month once the work is paying off.
Judge SEO over a year, not a month. Pages that rank keep bringing visitors without a cost per click, which is why it makes sense to compare SEO with paid ads over a longer period. Read how long SEO takes and what SEO costs in the UK for the detail.
Where to find your own numbers
- Extra visits. Look at organic visits in Google Analytics today, then decide how much of a rise is realistic. A cautious figure and a better one will show you the range.
- Enquiry rate. Divide the enquiries you get from search by the visits from search. If you have no history, start low.
- Enquiries that become customers. Think about your last 20 enquiries and how many you won.
- Value of a new customer. Use what a customer is worth over the first year if they come back, or one sale if they do not.
Want a second opinion on your numbers? Ask for a free SEO audit.
SEO ROI calculator questions
Can’t see yours? Send us a question through the contact form or email support@wpwebtool.com. We’re here Mon–Fri, 09:00–18:30.
What is a good return on investment for SEO?
It depends on what a customer is worth to you and how competitive your market is. A figure above £1 of value for every £1 spent means SEO is paying for itself in that month. Work out your own numbers rather than trust a general average.
Why is my return negative at first?
SEO usually takes 3 to 6 months to show results, so early months carry the cost before the extra visits arrive. That is why a longer view is fairer.
How many extra visits should I enter?
Use a figure you could defend. Start from your current organic visits in Google Analytics and try a small rise and a bigger one. Our guide on how long SEO takes sets out what to expect.
Does the calculator include ad costs?
No. It looks at SEO only. If you also run Google Ads, try our Google Ads budget calculator.
Is anything I type saved or sent?
No. The sums run in your browser. Your figures are never sent to us or anyone else, and nothing is stored once you leave the page.
Want help turning the numbers into leads?
We do SEO for a flat £30 an hour, with no contract and 30 days’ notice. Tell us what you need and we’ll reply within 1 working day.