Rowing · Concept2 formula

1:40 split: watts, times and calories

A 1:40 /500m split is 350 watts. Held for 2,000 m, that is 6:40.0.

Power
350 W
350.0 W exactly
2,000 m
6:40.0
at 1:40
5,000 m
16:40
at 1:40
Calories / hour
1505
monitor (175 lb rower)

Use your own numbers: open the rowing calculator →

The calculation

pace = 100 s ÷ 500 m = 0.2000 s/m · watts = 2.80 ÷ 0.2000³ = 350.0 W

This is Concept2’s formula (watts calculator). Calories use the widely documented monitor formula, 4 × 0.8604 × watts + 300 per hour, which assumes a 175 lb rower — see Concept2’s calorie calculator for the correction for your weight.

Times at 1:40 /500m

DistanceTime
500 m1:40.0
1,000 m3:20.0
2,000 m6:40.0
5,000 m16:40.0
6,000 m20:00.0
10,000 m33:20.0
21,097 m (half marathon)1:10:19.4
42,195 m (marathon)2:20:39.0

Calories by bodyweight

RowerCalories per hourPer 30 minutes
55 kg (121 lb)1412706
65 kg (143 lb)1450725
75 kg (165 lb)1488744
85 kg (187 lb)1526763
95 kg (209 lb)1564782
105 kg (231 lb)1601801

Other splits

Last reviewed: 2026-10-04 · Disclaimer

FAQ

1:40 split — questions

About 350 watts, using Concept2’s formula watts = 2.80 ÷ (split ÷ 500)³.

Holding 1:40 per 500 m for 2,000 m gives 6:40.0.

The Concept2 monitor shows about 1505 calories per hour at 350 W, assuming a 175 lb (79 kg) rower. Concept2’s correction: subtract 300 and add 1.714 × your weight in pounds.