Email Bounce Rate Calculator: The Formula and How to Read It

Email Bounce Rate Calculator

An email bounce rate calculator computes your bounce rate by dividing bounced emails by total emails sent and multiplying by one hundred.

The calculation

Bounce rate = (bounced emails / total sent) x 100. If you sent 10,000 emails and 150 bounced, your bounce rate is 1.5%. That's the whole formula. The value is in interpreting it. Under 2% is healthy. Above it, providers start filtering you.

Reading the number

A single high number is a snapshot, but the trend is the story. A creeping rate points at list decay, while a sudden spike points at a bad import or a stale segment. Break it into hard and soft bounces (see soft bounce vs hard bounce email) to know which problem you have.

How Nitrosend tracks it

Rather than calculating after the fact, Nitrosend tracks bounce rate per domain live and gates sending on it, so a rising rate is acted on automatically instead of discovered in a monthly report.

FAQ

How do I calculate email bounce rate?

Divide the number of bounced emails by the total sent and multiply by one hundred. For example, 150 bounces out of 10,000 sent is a 1.5% bounce rate.

What bounce rate should the calculator show?

Under 2% is healthy. Above that signals list problems that hurt deliverability.