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How to Calculate Email Open Rate

What is Email Open Rate?

Email marketing metrics: open rate shows recipients who opened the campaign. CTR (click-through rate) measures clickers among openers. CTOR measures clicks per total send.

Formula

Open rate (%) = (Emails opened / Emails delivered) × 100 | Click-through rate = (Clicks / Opens) × 100

Step-by-Step Guide

  1. 1Open rate = Opens / Sends × 100
  2. 2CTR = Clicks / Opens × 100
  3. 3CTOR = Clicks / Sends × 100
  4. 4Industry average open rate: ~20–25%

Worked Examples

Input
5,000 sends, 1,300 opens, 390 clicks
Result
Open rate 26%; CTR 30%; CTOR 7.8%

Frequently Asked Questions

What is Email Open Rate?

Email marketing metrics: open rate shows recipients who opened the campaign. CTR (click-through rate) measures clickers among openers

How accurate is the Email Open Rate calculator?

The calculator uses the standard published formula for email open rate. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Email Open Rate calculator use?

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Email Open Rate calculator use?

The core formula is: Open rate = Opens / Sends × 100. Each step in the calculation is shown so you can verify the result manually.

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