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Reference table

Email Open Rate Table: Open rate by Unique opens

Reference table of open rate for Email Open Rate across a range of unique opens values — exact, engine-computed figures you can read off at a glance.

By Priya Nair, MBA, Finance & Strategy · Updated Jun 2026 · 1 min read

This email open rate reference table shows the open rate for a range of unique opens values, assuming an emails delivered of 1,000. Every figure is computed with the same engine that powers our Email Open Rate Calculator, so the numbers are exact.

Unique opensOpen rate
636.30%
13013.00%
19019.00%
25025.00%
38038.00%
50050.00%
75075.00%
1,300130.00%
1,800180.00%
2,500250.00%

How to use this table

Find the row closest to your unique opens and read across to the open rate. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Email Open Rate Calculator for a precise answer.

Need a value that is not in the table? — the Email Open Rate Calculator does it instantly, for free, with the formula and a worked example built in.

Continue exploring marketing calculators with these tools: LTV to CAC Ratio Calculator, Conversion Value Calculator, Customer Churn Cost Calculator, Ad Frequency Calculator, Viral Coefficient Calculator.

Calculators in this guide

Frequently asked questions

Each cell is computed with the standard formula using exact arithmetic — the same calculation behind our Email Open Rate Calculator — so every figure is accurate for the stated assumptions.

Yes. The table covers common unique opens values; for any exact figure, enter your own numbers in the Email Open Rate Calculator.

Priya Nair · MBA, Finance & Strategy

Priya Nair is a business analyst and MBA who advises small businesses and startups on pricing, unit economics and growth metrics.