Swimming Pace
Calculator
Results
- Pace per 100 metres
- 2
Results
| Pace per 100 metres | 2 |
formula-map diagram
- Pace per 100 metres
- 2
Diagram
Formula
pace = t × 100 ÷ d= 2
Note
This is a simplified sports-science model for general guidance, not medical or coaching advice.
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See all →Frequently asked questions
How is swimming pace expressed differently from running pace?+
Swimming pace is usually given per 100 meters or 100 yards rather than per kilometer or mile, since pool lengths are the natural unit swimmers think in. Enter your time and distance and the calculator converts it to that per-100 format.
Why is my swimming pace so much slower than my running pace?+
Water is far denser than air, creating much greater resistance, so swimming speeds are naturally much lower than running speeds for the same effort level. Comparing the two paces directly isn't meaningful; compare each to your own past swimming performances instead.
Does swimming pace differ between pool lengths of 25m and 50m?+
Yes, more turns in a 25m pool let you push off the wall more often, which is typically faster than sustained swimming in a 50m pool. When comparing times, note which pool length was used, since it affects the pace.
How do I use pace to plan interval sets at the pool?+
Once you know your pace per 100m, you can set target split times for repeat distances, like 8 x 100m, to structure interval training at a specific intensity. Faster splits than goal race pace build speed, while slightly slower splits build endurance.
Why does stroke type affect the pace I should expect?+
Freestyle is generally the fastest stroke due to its continuous propulsion, while breaststroke and butterfly are slower per 100m for most swimmers due to more drag and glide phases. Use pace targets specific to the stroke you're swimming, not a generic number.