Swim Pace Calculator
Turn swim distance and time into pace per 100 m and speed.
Swim pace, the way swimmers count it
Swimmers measure effort in time per 100, not overall speed, and this tool converts a distance and finish time straight into that. Enter how far you swam and how long it took.
A 1500 m swim in 20 minutes is a 1:20 pace per 100 metres. Flip it around and enter a goal time to find the per-100 pace you need to hold across the whole distance.
Precise and private
It parses your time and does the conversions in your browser, so nothing you enter is uploaded.
Frequently Asked Questions
What does it calculate?
From a distance and time it gives your pace per 100 metres, per 100 yards, and average speed. Pace per 100 is how swimmers usually track effort.
How do I enter the time?
As minutes:seconds or hours:minutes:seconds — for example 20:00 for a 1500 m swim, or 1:30 for a 100 m sprint.
Can I plan a goal time?
Yes. Enter your target distance and goal time to see the per-100 pace you need to hold.
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