Online Conversion ROI
Calculate the value of your A/B tests and CRO initiatives
Online Conversion ROI
Calculate the business value of your CRO experiments and A/B tests.
Takes ~2 minutes. Includes test feasibility analysis and ROI projections.
Press Enter to start
What this calculator does
The Online Conversion ROI calculator values CRO programmes and A/B tests: what a realistic conversion-rate improvement is worth against your traffic and order economics, including whether your traffic volume makes a test feasible at all.
Project the value of an experimentation roadmap, or measure the realised revenue of shipped winners with the Impact journey.
How it works
Answer a short set of questions — volumes, time, and costs you already track. The calculator runs a pure, versioned formula and presents conservative, moderate, and optimistic scenarios, a receipt-style ledger tracing every figure back to an input, and a multi-year NPV/IRR view. Each report lists its assumptions so reviewers can challenge them line by line. See the methodology for how the models work, or view a complete sample report.
Benchmarks you can defend
- Global average e-commerce conversion is 2.74%, ranging from 5.37% (beauty) to 0.71% (luxury); mobile now converts at parity with desktop in this panel. Dynamic Yield (Mastercard) benchmarks, rolling 12 months
- Median landing-page conversion is 6.6% across industries (SaaS: 3.8%) — a different metric from site-wide conversion; never mix the two. Unbounce Conversion Benchmark Report (41k pages, 464M visitors)
- 70.22% of online shopping carts are abandoned; extra costs at checkout are the top stated reason (39%). Baymard Institute (average of 50 studies)
Every constant used in-product is cited — the full source list, with caveats, is on the methodology page.
Frequently asked questions
What conversion-rate lift is realistic to model?
Model a range, not a point estimate — that is what the three scenarios are for. Sanity-check your baseline against industry figures (2.74% global average for e-commerce sites, with wide industry spread) and be explicit about whether you are measuring site-wide conversion or landing-page conversion, which run on different scales.
What does the test feasibility analysis tell me?
Whether your traffic and baseline conversion give an A/B test enough statistical power to detect the lift you are hoping for in a reasonable time. Many CRO business cases fail not on value but on detectability — this flags that before you commit.
Is the Online Conversion ROI calculator free?
Your first calculator is free forever, with unlimited re-runs and one saved report — no card required. You enter your email to view and save results, and upgrading to Pro unlocks all 13 calculators, unlimited reports, exports, and share links.
Can I change the assumptions?
Yes — every assumption is editable before you calculate, and the report records exactly what you used. Industry constants are cited on the methodology page, and the receipt-style ledger traces each figure in the result back to an input.