SuperCalc

Calculate conversion rate and the impact of small improvements on revenue. Input visitors, leads, and purchases to see stage‑to‑stage conversion and absolute lift from changes. Great for A/B testing, funnel diagnostics, and setting realistic goals. Includes tips for prioritizing tests with the highest expected value and avoiding sample‑size pitfalls.

Conversion Rate Calculator

Measure the effectiveness of your marketing campaigns and website performance

Traffic Data

Number of unique visitors or sessions

Number of completed goals (sales, signups, etc.)

Formula:

CR = (Conversions ÷ Visits) × 100%

Performance Metrics

Enter values to see results

Or click "Fill Example" to see a demo

Frequently Asked Questions

What is a good conversion rate?

It depends on traffic quality and offer.

Many e‑commerce sites range 1–4%, B2B lead gen 2–8%.

Focus on lift over time, not arbitrary targets.

Do micro‑conversions matter?

Yes.

Measuring add‑to‑cart, signup, or step completion exposes friction earlier in the funnel and reveals where to test first.

How long should I run a test?

Until you hit required sample size and a full business cycle (e.g., one week) to avoid day‑of‑week bias.

Why did CVR drop after more traffic?

Broader audiences often convert worse.

Segment by source, campaign, and device to detect quality and intent differences.

Is statistical significance enough?

No.

Also consider effect size, seasonality, and whether the result generalizes.

Practical significance matters for ROI.

How to pick what to test?

Start with high‑impact pages, diagnose with analytics and recordings, and prioritize tests by potential, importance, and ease (PIE).

About This Page

Editorial & Updates

  • Author: SuperCalc Editorial Team
  • Reviewed: SuperCalc Editors (clarity & accuracy)
  • Last updated: 2026-01-13

We maintain this page to improve clarity, accuracy, and usability. If you see an issue, please contact hello@supercalc.dev.

Financial/Tax Disclaimer

This tool does not provide financial, investment, or tax advice. Calculations are estimates and may not reflect your specific situation. Consider consulting a licensed professional before making decisions.