Rowing · Concept2 formula

1:45 split: watts, times and calories

A 1:45 /500m split is 302 watts. Held for 2,000 m, that is 7:00.0.

Power
302 W
302.3 W exactly
2,000 m
7:00.0
at 1:45
5,000 m
17:30
at 1:45
Calories / hour
1341
monitor (175 lb rower)

Use your own numbers: open the rowing calculator →

The calculation

pace = 105 s ÷ 500 m = 0.2100 s/m · watts = 2.80 ÷ 0.2100³ = 302.3 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 1:45 /500m

DistanceTime
500 m1:45.0
1,000 m3:30.0
2,000 m7:00.0
5,000 m17:30.0
6,000 m21:00.0
10,000 m35:00.0
21,097 m (half marathon)1:13:50.4
42,195 m (marathon)2:27:41.0

Calories by bodyweight

RowerCalories per hourPer 30 minutes
55 kg (121 lb)1248624
65 kg (143 lb)1286643
75 kg (165 lb)1324662
85 kg (187 lb)1362681
95 kg (209 lb)1400700
105 kg (231 lb)1437719

Other splits

Last reviewed: 2026-10-04 · Disclaimer

FAQ

1:45 split — questions

About 302 watts, using Concept2’s formula watts = 2.80 ÷ (split ÷ 500)³.

Holding 1:45 per 500 m for 2,000 m gives 7:00.0.

The Concept2 monitor shows about 1341 calories per hour at 302 W, assuming a 175 lb (79 kg) rower. Concept2’s correction: subtract 300 and add 1.714 × your weight in pounds.