π§ͺ A/B Testing & Experiments
Split Test Calculator
Compare two or more variants in a split test. Free online split test calculator with significance and lift.
How to Use This Calculator
- 1Enter your inputs in the fields above.
- 2Press the Calculate button to see results instantly.
- 3Review the formula and worked example below to verify.
- 4Try different scenarios β your numbers stay private in your browser.
Example Calculation
How It's Calculated
- z: Z-score (standard normal)
- alpha: Significance level
- k: Compounding periods per year / count
Benefits & Use Cases
- Instant results β no spreadsheet required
- Free and unlimited usage, no signup
- Privacy-first: nothing is sent to any server
- Mobile-friendly and works offline once loaded
Frequently Asked Questions
Is this calculator free to use?
Yes β every calculator on GenAlpha Tools is 100% free with no signup required.
Do you store the values I enter?
No. All calculations happen in your browser. Your data never leaves your device.
Can I use this on mobile?
Yes, the calculator is fully responsive and works on phones, tablets, and desktops.
Is the result accurate?
Calculations follow the standard published formula shown below. Results are for educational use; verify with a professional for high-stakes decisions.
Related Calculators
A/B Test Calculator
Run a two-proportion z-test on your A/B test results. Free A/B testing calculator with significance and lift.
Calculate Now β βStatistical Significance Calculator
Test if your A/B test result is statistically significant. Free significance calculator with p-value and confidence.
Calculate Now β πConversion Lift Calculator
Calculate percentage lift between control and variant conversion rates. Free conversion lift calculator.
Calculate Now β π °οΈπ ±οΈBayesian A/B Test Calculator
Run a Bayesian A/B test with credible intervals and probability variant beats control. Free Bayesian A/B calculator.
Calculate Now β