HEALTH · SWIMMING PACE
Swimming Pace Calculator
Calculate your swim pace per 100 m or per 100 yd from distance and finish time. Generates a lap-by-lap splits table for metric and yards pools.
| Lap | Dist (m) | Elapsed |
|---|---|---|
| 1 | 25 | 0:30 |
| 2 | 50 | 1:00 |
| 3 | 75 | 1:30 |
| 4 | 100 | 2:00 |
| 5 | 125 | 2:30 |
| 6 | 150 | 3:00 |
| 7 | 175 | 3:30 |
| 8 | 200 | 4:00 |
| 9 | 225 | 4:30 |
| 10 | 250 | 5:00 |
| 11 | 275 | 5:30 |
| 12 | 300 | 6:00 |
| 13 | 325 | 6:30 |
| 14 | 350 | 7:00 |
| 15 | 375 | 7:30 |
| 16 | 400 | 8:00 |
About This Calculator
Swim training is measured in pace per 100 meters (or 100 yards for US short-course pools). This calculator converts your total swim time and distance into a per-100 pace, and generates a split table so you know your cumulative elapsed time at each lap. Works for both short-course (25 m/25 yd) and long-course (50 m) pools.
How It Works
Pace per 100 is calculated by dividing your total time by the number of 100-unit segments in your swim: pace = time / (distance / 100). The split table is generated by dividing the total time evenly across each pool length — assuming an even-effort swim.
The Formula
pace = T × 100 / D
- T
- Total swim time (seconds)
- D
- Total swim distance (m or yd)
- pace
- Pace in seconds per 100 m or 100 yd
Frequently Asked Questions
- What is the difference between SCM, SCY, and LCM?
- SCM (short-course meters) pools are 25 m long — common internationally. SCY (short-course yards) pools are 25 yards — standard in US high school and college competition. LCM (long-course meters) pools are 50 m — the Olympic standard. Pace times differ between course types because of the extra push-offs in shorter pools.
- Why are my swim times slower than my running pace would suggest?
- Swimming engages the entire body in a horizontal position while managing buoyancy, breathing, and stroke efficiency — it is biomechanically very different from running. Elite swimmers train to sustain sub-1:00 /100m pace; recreational swimmers commonly range from 1:40 to 3:00 /100m.
- How does this differ from the Pace Calculator?
- The Pace Calculator on this site is for running (calculates min/km or min/mile from distance and time). The Swimming Pace Calculator uses the swim-specific per-100 convention (per 100 m or per 100 yd) which is the standard for swim training, and generates lap-by-lap splits.