Email mini app
Cold Email Reply Rate Calculator
Cold email reply rate is the percentage of delivered messages that receive a reply during the measurement period.
Free · no API requiredWhat this free calculator helps you do
Use delivered emails as the denominator when bounce data is available. Compare similar lists, offers, and cadences rather than treating one campaign as a universal benchmark.
How to use it
- 1
Enter the send count, total replies, and known bounces.
- 2
Optionally separate positive replies from all replies.
- 3
Compare reply rates only across like-for-like campaigns.
Reply rate formula
Reply rate equals replies divided by delivered emails, multiplied by 100. Delivered emails equal sent emails minus bounces.
Useful guardrails
- Define a consistent reply window after the campaign starts.
- Track positive replies separately from every response.
- Review list quality and relevance before changing copy.
Questions people ask
About this mini app
Should bounced emails count in reply rate?
If reliable bounce data is available, remove bounces from the delivered-email denominator.
Is reply rate the same as open rate?
No. Reply rate counts recipient responses. Open tracking is increasingly unreliable because of privacy protections.
What is a positive reply rate?
It is the share of delivered emails that receive a response indicating interest or an appropriate next step, based on your team’s definition.