An intuitive, configurable A/B Test Sample Size calculator

I'm a data scientist and have been getting frustrated with sample size calculators for A/B experiments. Specifically, I wanted a calculator where I could toggle between one-sided and two-sided tests, and also increment the number of offers in the test. 

So I built my own! And I'm sharing it here because I think some of you would benefit as well. Here it is: [https://www.samplesizecalc.com/](https://www.samplesizecalc.com/) 

[Screenshot of samplesizecalc.com](https://preview.redd.it/vevipqig659d1.png?width=2880&format=png&auto=webp&s=63b2a0f4bd9b349afd559c9ef5829b66ad8b6183)

Let me know what you think, or if you have any issues - …

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