Calculate your swim pace per 100 m or 100 yd from distance and time, or predict your finish time at a set pace, with 50, 200 and 500 split times.

Use 20:00 for 20 minutes; decimal seconds are allowed. Include rests to get the average pace for the whole swim.

Optional settings

Common pace relationships within the same course unit
50 splitPace per 100500 time1,500 time
0:351:105:5017:30
0:401:206:4020:00
0:451:307:3022:30
0:501:408:2025:00
1:002:0010:0030:00

Each row assumes perfectly even pacing and the same course unit throughout. A 1:30 pace per 100 meters and a 1:30 pace per 100 yards use the same time arithmetic, but they are not equivalent performances because 100 meters is longer than 100 yards.