Website ROI Calculator

What could a better-performing website be worth to your business? Explore the numbers in seconds.

Your website today

Adjust the figures to match your business.

Monthly website visitors

Unique visitors or sessions per month

Current conversion rate (%)

Percentage of visitors who become customers or enquiries

Average value per conversion (£)

Revenue per customer or lead, using your chosen basis

Projected conversion rate (%)

Your hypothetical conversion rate after improvements

Website investment (£)

One-off redesign or improvement cost

Additional monthly costs (£)

Any extra ongoing website costs

Potential additional annual revenue

£0

Based on your projected conversion improvement.

Current monthly revenue—

Projected monthly revenue—

Extra conversions / month—

First-year revenue ROI*—

Current—

Projected—

*First-year revenue ROI = (additional annual revenue − website investment − 12 × additional monthly costs) ÷ total first-year costs × 100. Revenue ROI is not profit ROI. This estimate assumes traffic and revenue per conversion remain constant, excludes existing operating costs and does not predict actual results.

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Small improvements. Meaningful returns.

More visitors are useful. More customers are better. Explore what happens when your website converts a little more of the traffic you already receive. Results are illustrative estimates, not guaranteed revenue or profit.

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