Swim Pace Calculator

    400 m in 12 minutes is a pace of 3:00 per 100 m

    Swimming 400 m in 12 minutes requires a pace of 3:00 per 100 m (30:00 per km / 48:16 per mile). This distance is a common pool time-trial distance.

    At 3:00/100 m, each 25 m lap takes 0:45 and each 50 m length takes 1:30. To check a different time for 400 m, or to explore pool and open-water splits, use the calculator below.

    Pace breakdown

    Distance400 m
    Target time12 minutes
    Pace per 100 m3:00
    Pace per km30:00
    Pace per mile48:16

    Training paces at 3:00/100 m

    Derived from your 3:00/100 m race pace using the same formula as the Swim Pace Calculator.

    Easy (warm-up / recovery)3:27/100 m
    Aerobic base3:09/100 m
    Threshold2:51/100 m
    Build sets2:42/100 m
    Sprint intervals2:33/100 m
    Lap pace (25 m pool)0:45/lap

    Want to calculate a different pairing? Open the Swim Pace Calculator to enter any distance and time, see pool and open-water splits, and build your training zones.