---
title: "Email A/B Test Calculator - Free calculator | FirstSales"
description: "The Email A/B Test Calculator determines statistical significance for email tests. Know when you have a winner with confidence intervals and p-values."
canonical: "https://firstsales.io/tools/email-ab-test-calculator/"
---

100% Free • No SignupCold Email Toolscalculator

# Email A/B Test Calculator

Calculate statistical significance for email A/B tests and determine the winning variant. Works instantly without signup.

Instant Results

No Signup

[Home](/)/[Tools](/tools/)/Email A/B Test Calculator

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Email A/B Test Calculator

A/B Test Calculator

Enter your A/B test data to analyze results and determine statistical significance.

Group A (Original)

Group B (Variant)

[Stop doing this by hand. FirstSales runs your cold email tools on autopilot, 24/7.Start your $1 trial](https://app.firstsales.io)

## Key Features

Significance testing

Confidence intervals

Sample size calc

Winner determination

Test recommendations

## Use Cases

1

A/B testing

2

Significance checking

3

Test planning

4

Decision making

Tool Info

Typecalculator

Free

Yes

Signup

Not Required

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## About Email A/B Test Calculator

The Email A/B Test Calculator determines statistical significance for email tests. Know when you have a winner with confidence intervals and p-values.

## Automate Your Cold Email Tools

This free tool is great for quick checks. FirstSales automates your entire cold email tools workflow with AI-powered personalization and 87% inbox placement.

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Setup in 8 minutes • Cancel anytime

## FAQs

Your questions answered

Can't find what you're looking for? Contact our [customer support team](mailto:support@firstsales.io)

### General

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### Deliverability

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Can't find what you're looking for? Contact our [customer support team](mailto:support@firstsales.io)