Enter your distance and time (or a known 500m split) to calculate your rowing pace, predicted race finish time, and power output in watts. You can also input your age, bodyweight, and gender to get your watts per kilogram and a performance rating. Works for all standard Concept2 erg distances — from a 500m sprint to a 10K.
500m Split
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Total Finish Time
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Power Output
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Watts per Kilogram
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Speed
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Calories per Hour
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Performance Level
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A 500m split is the time it takes you to row 500 metres at your current pace. It's the standard unit of pace used on Concept2 ergometers and in competitive rowing. For example, a split of 2:00 means you're rowing at a pace that would cover 500 metres in exactly 2 minutes.
To find your 500m split, divide your total time in seconds by your distance in metres, then multiply by 500. So if you row 2000m in 7 minutes 30 seconds (450 seconds), your split is (450 / 2000) × 500 = 112.5 seconds, or 1:52.5 per 500m. This calculator does that automatically.
The standard Concept2 formula converts pace to watts using: Watts = 2.80 / (split_seconds / 500)³. This is the same formula used by Concept2 ergometers. A 2:00/500m split equates to roughly 197 watts, while a 1:45 split is approximately 295 watts.
Watts per kilogram is your power output divided by your bodyweight. It's the gold standard for comparing rowing performance across athletes of different sizes, similar to its use in cycling. Elite male rowers typically achieve 5–6 W/kg over 2000m, while elite women average around 4–5 W/kg.
Performance benchmarks vary by age, gender, and weight category. As a general guide for a 2000m erg, a sub-7:00 is strong for men and sub-8:00 for women. Elite open-weight men target under 6:00 and elite women under 6:50. Use this calculator along with your age and gender to get a contextual performance level.
Yes — the same pace-to-watts formula applies to the Concept2 SkiErg. The split, watts, and projected time calculations are identical. Simply select 'SkiErg' from the machine type dropdown. Note that absolute power outputs will naturally differ from rowing due to the different muscle groups engaged.
The calorie figure is based on the Concept2 formula: Cal/hr ≈ (Watts × 4 + 300) / 4.2 (approximately). It's a reasonable estimate but doesn't account for individual metabolic differences, body composition, or rowing technique. Concept2 monitors display calories in a similar way — as an estimate rather than a precise metabolic measurement.
Enter your known 500m split in the split fields (minutes and seconds) and your target race distance, then leave the total time fields at zero. The calculator will derive your predicted total finish time by applying that split pace across the full distance. This is useful for race planning and pacing strategy.