Swim Pace Calculator
Enter total distance in metres and total time to calculate your pace per 100 m and average swim speed.
100% client-side · no upload
Pace per 100 m
Speed
How to use
- Enter the total swim distance in metres (e.g., 400 for 16 lengths of a 25 m pool).
- Enter your total time in MM:SS or HH:MM:SS format.
- Click Calculate Swim Pace to see your pace per 100 m and average speed.
Related sport tools
- Running Pace Calculator — convert run pace and speed
- Training Load Calculator — RPE × duration session stress
- Cycling Power Estimator — watts from speed and gradient
- VO₂ Max Estimator — aerobic capacity from heart rate
常見問題
- Is this swim pace calculator free?
- Yes, completely free with no signup and no usage limits.
- Does my data leave my device?
- No. All calculations run in JavaScript inside your browser. Nothing is sent to any server.
- Does it work on mobile?
- Yes. The calculator is mobile-first and works on iPhone Safari and Android Chrome.