ab testing online

Is your test result significant? Does it have enough power? Play with the controls and get a better feel for how a lower confidence level will boost the power ...

Determine how confident you can be in your survey results. Calculate statistical significance with this free A/B testing calculator from SurveyMonkey.

The A/B Test Calculator helps you plan and analyze experiments with precision. It calculates sample size, test duration, and statistical significance.

Enter your visitor and conversion numbers below to find out. The significance calculator will tell you if a variation increased your sales, and by how much.

Find out your MDE, sample size, and test duration with Speero's A/B test calculator. Also, the ROI behind your tests, confidence level, and more.

Intuitive statistical calculators, ideal for planning and analyzing A/B tests. Read the full announcement » · Sample Size Calculator · Two-Sample T-Test

Want to run an online A/B test? Calculate its significance with our Bayesian-powered calculator built for experimentation, CRO, and UX Optimization.

Calculate your confidence interval, how long your test should run, and the sample size needed to maintain accuracy, with our ab test calculator!

Quickly estimate needed audience sizes for experiments with this tool. Enter a few estimations to plan and prepare for your experiments.

Understand the results of your A/B tests visually and share results with your team. Interact with your data and simulate changes.