Free CRO tool / Conversion scenario

Conversion rate calculator for leads, sales and landing pages

Conversion rate is completed outcomes divided by eligible visits or users, multiplied by 100. Keep the numerator, denominator, period and traffic definition consistent when comparing performance.

Use the calculator

Free · No account · Inputs stay in your browser

Conversion rate optimisation illustration showing a funnel and structured inputs
Conversion optimisation finds and reduces friction between qualified attention and meaningful action.

Interactive tool

Change the assumptions. Compare the scenario.

Enter non-sensitive planning values. The output updates in your browser and is not sent to GrowthLabs.

Current conversion rate
3%
Visits without the defined conversion
4,850
Conversions at scenario rate
200
Additional conversions in scenario
50

Scenario arithmetic only—not a forecast or guarantee.

Formula and inputs

Know what the result actually represents.

Conversion rate = conversions ÷ visits × 100. Additional conversions at scenario rate = visits × scenario rate − current conversions.

Inputs used

  • Eligible visits or users
  • Completed qualified conversions
  • Scenario conversion rate

Important cautions

  • +Do not compare different traffic definitions or conversion events.
  • +A higher rate can accompany lower qualified volume or revenue.
  • +Bot, internal and consent-limited traffic can affect the denominator.
  • +A scenario output is arithmetic, not a prediction.

How to use the output

Move from arithmetic to a better decision.

  1. 01

    Define the action

    Use a stable qualified lead, purchase, booking or another meaningful event.

  2. 02

    Choose the denominator

    Use eligible sessions or users consistently across the comparison.

  3. 03

    Model a range

    Compare conservative and upside rates without presenting them as expected results.

  4. 04

    Check quality

    Reconcile volume with sales, revenue, margin and customer quality.

Tool questions

Definitions and limits, answered.

01

What is a good conversion rate?

There is no universal benchmark. Intent, offer, channel, device, market, event definition and business model change the useful range.

02

Should I use users or sessions?

Either can be useful when its definition is documented and applied consistently. Do not silently switch denominators.

03

Can conversion rate rise while performance worsens?

Yes. Traffic or conversion volume, lead quality, revenue or margin can decline while the percentage increases.

04

Does this calculator predict conversions?

No. It shows the arithmetic of your inputs and a scenario rate.

Continue with context

Use the scenario to ask a sharper growth question.