Enter your distance, split time, or total time into the ERG Calculator and get back the missing parameter — plus your power output in watts. Whether you're training on a Concept2 rowing machine or any indoor rower, plug in two known values to calculate pace per 500m, total time, or total distance rowed. Great for planning workouts and tracking performance benchmarks.
Result
--
Total Time
--
500m Split
--
Distance
--
Power Output
--
Calories / Hour
--
The word 'ergometer' comes from the Greek words ergon (work) and metron (measure). An ergometer is an exercise machine that measures the work you perform while exercising. In rowing, 'erg' typically refers to an indoor rowing machine — most famously the Concept2 — which tracks power output, split time, and distance.
A split time is the time it would take you to row 500 meters at your current pace. It is the standard unit of pace used on all rowing ergometers. A faster (lower) split means you are rowing harder and covering 500m more quickly. For example, a 2:00 split means you would row 500m in exactly 2 minutes.
Select what you want to calculate — Total Time, Split, or Distance — then enter the two values you already know. For example, to find your total time for a 2000m piece at a 2:00/500m split, choose 'Total Time', enter 2000m as the distance, and set your split to 2:00. The calculator will output your total time along with power in watts and estimated calories.
The standard Concept2 formula for converting split time to watts is: Power (W) = 2.80 / (split_time_in_seconds / 500)³. This cubic relationship means small changes in split time produce large changes in power output. A 2:00/500m split equals about 195 watts, while a 1:50/500m split is roughly 253 watts.
A good 2000m time varies greatly by age, weight, and gender. For competitive male rowers under 30, sub-6:30 is strong; for recreational rowers, under 7:30 is a solid benchmark. For women, sub-7:30 is competitive and under 8:30 is a good recreational goal. Junior and masters categories have their own age-adjusted standards.
The Concept2 formula estimates calories per hour as: Cal/hr = (watts × 4 + 300) × 0.8604. This is an approximation and actual calorie burn depends on your body weight, fitness level, and rowing technique. The calculator provides this estimated figure alongside your power output.
The most popular ERG test distances are 2000m (the standard racing distance and most common fitness benchmark), 500m (a pure sprint), 1000m, 5000m, 6000m, and 30-minute or 60-minute timed pieces. The 2k test is used worldwide for athlete selection and fitness assessment.
The pace and split formulas are the same across Concept2 machines, so the time, distance, and split calculations apply to SkiErg and BikeErg workouts too. However, the watt-to-split conversion and calorie formulas are calibrated for the rowing erg and may differ slightly on other machines.