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Swim Pace Calculator

Calculate Pace per 100m/100y • Speed • Target Splits • CSS

1:21.00
per 100 yards

Speed: 1.23 yd/s | CSS ≈ 1:21.00/100yd

DistanceSplit TimePace/100

How to Use the Swim Pace Calculator

Enter your total swim time and distance. The calculator instantly shows your pace per 100 meters or yards, swimming speed, and precise target splits for any distance.

Why Swim Pace per 100m/100y Matters

Coaches and triathletes use pace per 100 as the universal benchmark. Whether training in a 25m, 50m, or 25-yard pool, this calculator normalizes your performance so you can track improvement and set accurate goals.

Critical Swim Speed (CSS) Explained

CSS is your aerobic threshold pace — the fastest speed you can maintain without accumulating lactate. Use a 400 + 200 time trial: CSS ≈ pace of (400 + 200 time) / 6.

Common Swim Pace Conversions

Frequently Asked Questions

What is a good 100m swim pace?

Elite swimmers: under 1:00 | Competitive: 1:05–1:15 | Recreational: 1:30–2:00

How do I convert swim time to pace?

Time (seconds) ÷ Distance (in hundreds) = pace per 100

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