Aspire performance calculator
Concept2 2,000 m row.
Turn a standard 2k erg time into estimated VO2 max, 500 m pace, watts and watts per kilogram.
Calculate your result.
Use a Concept2 RowErg and enter the final 2,000 m time shown on the monitor. Results appear immediately before the optional report form.
- 2k time
- 7:00
- 500 m pace
- 1:45
- Average power
- 302 W
- Power / weight
- 3.78 W/kg
Broad VO2 reference bands
Male, 40-49These are broad age- and sex-based VO2 categories reproduced by Concept2, not rowing-specific 2k performance rankings. View the published table.
This is a field estimate, not laboratory gas analysis. Technique, pacing, drag setting and familiarity with the erg can materially change the result.
Free full report
Email the calculation, interpretation and retest plan.
Aerobic capacity result
Your estimated VO2 max is 55.0 ml/kg/min. Against the broad Male, age 40 reference, that is Excellent.
Normative comparison
Male, age 40-49: Excellent.
The reference bands provide broad aerobic context; they are not Concept2-specific 2k rankings.
Calculation used
VO2 max = predicted litres per minute x 1,000 / body weight in kilograms. Average watts use Concept2's pace-to-power relationship.
How to use this result
Retest plan
- Retest in 6-8 weeks after a consistent training block.
- Use the same machine, drag factor, warm-up and pacing method.
- Record illness, sleep or unusual fatigue that may affect performance.
Method and limitations
This estimate is derived from 2,000 m performance. It is sensitive to rowing technique, training classification, pacing, machine setup and motivation. Laboratory cardiopulmonary exercise testing is the better choice when clinical or high-performance precision matters.
Public evidence
Concept2 VO2 max calculator and equations
Concept2 watts calculator
Cardiorespiratory fitness and long-term mortality
Bring the result and your training history to an Aspire consultation.
Book consultationEducational estimate only. Not medical advice, diagnosis or exercise clearance.
Protocol, safety and evidence.
Protocol: row 2,000 m from a stationary start after an appropriate warm-up. Record the final time from the monitor.
Safety: this is a maximal test. Do not attempt it when unwell, injured, pregnant, or advised to avoid vigorous exercise.
Classification: “highly trained” changes the equation. When uncertain, use recreational / not highly trained.
More tests
Compare your result with other strength, capacity and body-composition checks.