Free Email Open Rate Calculator
Calculate your email open rate and benchmark it against industry averages. See how your campaigns compare.
How it works
Enter your campaign numbers
Total emails delivered and total unique opens.
We calculate your open rate
Open rate = (unique opens / delivered) x 100.
Compare against benchmarks
Industry averages for cold email, marketing email, and transactional email.
Why this matters
Open rate tells you whether your subject lines and sender reputation are working. Cold email open rates of 40-60% are typical for well-targeted campaigns. Below 20% means something is wrong with your targeting, subject lines, or deliverability.
Track open rates across every campaign
SendKit gives you real-time open rate analytics across all campaigns and mailboxes, with A/B testing built in.
Real-time analytics
Open rates tracked live across every campaign and sender
A/B testing
Test subject lines and see which drives the highest open rate
Per-lead tracking
See which individual leads opened and how many times
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Got questions? We've got answers.
For cold email: 40-60% is good, above 60% is excellent. For marketing email: 20-30% is typical. Below 20% for any type suggests deliverability or targeting problems.
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