Rowing Machine NerdRowing Pace Calculator
Enter your 500m split below to instantly see your power output in watts, your speed, calories burned per hour, and your projected times across common distances. There are also two extra converters: watts to split, and a split worked out from any distance and time.
At this pace, you'd row
| 500m | 2:00 |
|---|---|
| 1,000m | 4:00 |
| 2,000m | 8:00 |
| 5,000m | 20:00 |
| 10,000m | 40:00 |
| in 30 min | 7,500m |
| in 60 min | 15,000m |
Watts → split
Distance + time → split
How the rowing pace calculator works
Power and pace on a rowing machine are linked by a fixed formula. Concept2 - whose monitor is the worldwide standard - defines it as watts = 2.80 ÷ (split ÷ 500)³, where the split is your 500m pace in seconds. Because the relationship is cubic, small improvements in pace demand much larger jumps in power: going from a 2:00 split to 1:50 isn't 8% more effort, it's closer to 30% more watts.
Calories per hour use the Concept2 estimate, (watts × 4 × 0.8604) + 300. That's the figure your monitor shows; it assumes a notional rower and doesn't adjust for your bodyweight, so treat it as a consistent benchmark rather than an exact personal calorie count. Speed is simply your distance over time at the entered pace.
Using your split to train
Your 500m split is the most useful number on the monitor for pacing. Once you know your sustainable split for a given distance, you can build workouts around it - holding it steady for endurance, or targeting a faster split for intervals. For how to put this into practice, see our guides to rowing split times, reading your monitor, and pacing a faster 2k. Ready to put a number to chase into a session? Try our interval workout builder.
References
- Pace and Watts Calculators - Concept2
- Calorie Information (how the monitor calculates calories) - Concept2
- Understanding Splits - Concept2
Frequently asked questions
- How do you convert a rowing split to watts?
- Use the Concept2 formula: watts = 2.80 ÷ (split ÷ 500)³, where the split is your 500m pace in seconds. A 2:00 /500m split (120 seconds) works out to about 202 watts. This calculator does it instantly.
- How many calories does rowing burn?
- On a Concept2-style erg, calories per hour ≈ (watts × 4 × 0.8604) + 300. So rowing at 150 watts burns roughly 820 calories per hour by the machine's estimate. Actual calorie burn varies with bodyweight, but this is the standard figure the monitor uses.
- What is a 500m split?
- Your split is how long it would take to row 500m at your current pace, shown as minutes:seconds /500m. It's the key pacing number on a rowing monitor - lower is faster. See our guide to rowing split times for how to train with it.
Jordan Lockwood (BSc, CPT)
Certified personal trainer (CPT), sports-science graduate, and lifelong rower. Jordan writes and reviews every guide on Rowing Machine Nerd.