UnityLife

Swim Pace Calculator

Pace, time, distance — pool or open water.

Free swim pace calculator. Plug in any two of pace, time and distance — we work out the third. Metric (per 100 m) and imperial (per 100 yd) with a one-click toggle.

Free tool

Total time

00:26:15

At 1:45 per 100 metres.

Pool turns and open-water sighting both add small overheads not captured here. For 25 m vs 50 m pools, expect roughly 1–2 s faster per 100 m in long course thanks to fewer push-offs.

Common Canadian swim targets

  • 1500 m sub-30:00 — 2:00 per 100 m
  • 1500 m sub-25:00 — 1:40 per 100 m
  • 800 m sub-15:00 — 1:52 per 100 m
  • 400 m sub-7:00 — 1:45 per 100 m
  • 100 m sub-1:30 — 1:30 per 100 m

Pool vs open water

Pool swims benefit from wall pushes (~0.5 seconds per turn for an average adult) and a straight-line path. Open water adds sighting strokes, current, chop, and the cost of swimming a slightly curved path because you can’t see the bottom line. For a 1500 m, plan an extra 90–120 seconds in open water relative to your pool best.

Pace vs effort

Like running, pace is a target — effort is what you actually deliver. Wetsuits, water temperature, post-race fatigue, sea state, and the draft off another swimmer can all shift the pace you can hold for a given heart rate. Use the calculator to plan, but treat the watch and your body as the authority on race day.

This tool is for educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a licensed Canadian healthcare professional. Read our full disclaimer.