3 km in 1 hr 10 min is a pace of 2:20 per 100 m

Swimming 3 km in 1 hr 10 min requires a pace of 2:20 per 100 m (23:20 per km / 37:33 per mile). This distance is a 3 km open-water distance.

At 2:20/100 m, each 25 m lap takes 0:35 and each 50 m length takes 1:10. To check a different time for 3 km, or to explore pool and open-water splits, use the calculator below.

Pace breakdown

Distance	3 km
Target time	1 hr 10 min
Pace per 100 m	2:20
Pace per km	23:20
Pace per mile	37:33

Training paces at 2:20/100 m

Derived from your 2:20/100 m race pace using the same formula as the Swim Pace Calculator.

Easy (warm-up / recovery)	2:41/100 m
Aerobic base	2:27/100 m
Threshold	2:13/100 m
Build sets	2:06/100 m
Sprint intervals	1:59/100 m
Lap pace (25 m pool)	0:35/lap

Try a different time for 3 km

3 km in 40 minutes = 1:20/100 m
3 km in 45 minutes = 1:30/100 m
3 km in 48 minutes = 1:36/100 m
3 km in 50 minutes = 1:40/100 m
3 km in 55 minutes = 1:50/100 m
3 km in 1 hour = 2:00/100 m
3 km in 1 hr 5 min = 2:10/100 m
3 km in 1 hr 10 min = 2:20/100 m

Faster: 1 hr 5 min = 2:10/100 m

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.