Email Response-Time Calculator

Average reply time and share answered within target.

Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.

Email Response-Time Calculator

How to use this tool

  1. Enter how many emails were answered in the period.
  2. Enter how many of those met your target time and the total hours spent replying.
  3. Press Generate for the average reply time and the within-target share.

Worked example

For 20 answered emails, 15 within target and 240 total reply hours, the average reply time is 240 / 20 = 12 hours, and the within-target share is 15 / 20 = 75%.

What this tool does not do / Limits

This tool averages the figures you enter. It does not read a mailbox, does not know your target time, and cannot tell whether a slow reply was caused by waiting on someone else.

Frequently asked questions

What does the average hide?

A few very slow replies can pull the average up even when most replies are fast, so read it together with the within-target share.

What counts as total reply hours?

Add up the time from receiving each email to sending its answer, for every email counted, using the same unit throughout.

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