Swimming Pace Calculator
Convert a swim distance and time into pace per 100m/100yd and per pool length — the standard units swimmers train and compare with, distinct from running-pace tools.
Result
Pace per 100
1:40 /100m
Pace per Length
25 /25m
How to Use the Swimming Pace Calculator
Enter the total distance you swam, your finish time, and your pool length, and this tool converts it into the two numbers swimmers actually train around: pace per 100m/100yd (the standard unit for comparing swim speed across any distance) and pace per pool length (useful for planning interval sets). This is distinct from the site's general running/walking Pace Calculator, which works in kilometers/miles and doesn't use pool-length-based splits.
Example
Swimming 400m in a 25m pool in 6:40 gives a pace of 1:40 /100m — that's a 25-second average per length, which you can use to set target split times for interval training.
Common Use Cases
- Converting a set or race time into a standard per-100 pace for comparing across distances.
- Planning interval training sets with a target per-length split time.
- Tracking swim pace improvements over time in a consistent unit.
FAQs
- Why pace per 100m instead of per km, like running? Swimming is almost always measured and compared in 100m/100yd splits since pools are built in fixed lengths (25m, 50m, 25yd) — it's the standard unit competitive and fitness swimmers use, not distance per hour.
- Does it matter if my pool is short-course (25m) or long-course (50m)? Yes for the per-length figure — a 50m pool length pace covers twice the distance of a 25m length, so make sure the pool length you select matches where you swam.
- How is this different from the site's Pace Calculator? That tool is built around running/walking distance in kilometers or miles. This one is scoped specifically to swimming's pool-length-based training conventions.