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Landing Page ROI Calculator

Thinking about improving a landing page? Compare your current conversion rate with the one you expect after the change, at the same traffic, to see the extra customers per month and how long the project takes to pay for itself.

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How long would a landing page improvement take to pay back?

Your assumption

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Result

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Enter your numbers

Fill in the fields and the result appears here.

The formula

Extra customers = visitors × (new rate − current rate)Extra monthly value = extra customers × value per customer − ongoing costPayback months = project cost ÷ extra monthly value

Worked example

10,000 visitors a month converting at 2% instead of 3% means 100 extra customers. At $120 each and a 50% contribution margin, that is $6,000 a month, or $5,900 after a $100 monthly tool. A $2,000 project pays back in about 0.3 months — if the improvement is real.

What the result means — and what it does not

  • It is a scenario built on an assumed conversion lift, not a prediction.
  • Small lifts on small traffic take a long time to show up in real data.

Common questions

Why payback instead of a single ROI percentage?

The project cost is paid once; the extra customers arrive every month. Comparing one month of extra revenue with a one-off cost mixes two periods. Payback — how many months until the gain repays the cost — answers the real question without that confusion.

What improved conversion rate should I assume?

A modest one you can justify, then test the change to see what really happens. It is better to discover an upside than to plan on one that does not arrive.

Should I include ongoing costs?

Yes, if the change brings any — a new tool, faster hosting or a monthly retainer. They are subtracted from the extra value every month.