Key Takeaways
- Rowing FTP (Functional Threshold Power) represents the highest power you can sustain for roughly 60 minutes on an ergometer — a practical training anchor for building structured programs.
- This calculator supports three estimation methods: 20-minute all-out test (× 0.95), 2K all-out test (× 0.88), or derived from your Critical Power.[1]
- Training zones are built as percentages of FTP, matching established rowing zone models (Recovery through Sprint).[2]
- You can input either watts or a 500m split — the Concept2 power formula converts between them automatically.
Which Test Method Should I Use?
- 20-Minute Test: The gold standard for FTP estimation. Row a maximal 20-minute erg piece and multiply average watts by 0.95.
- 2K Test: If you already have a recent 2K erg score, multiply the average watts by 0.88. This is less precise but convenient since many rowers test 2K regularly.
- CP-Based: If you have completed a Critical Power test with 2–3 efforts, use CP × 0.95. Find your CP with our Rowing CP Calculator.
Understanding the Training Zones
The 6-zone model follows the framework used by national rowing programs. Recovery and UT2 zones build your aerobic base (most of your training volume). UT1 and AT zones develop endurance and threshold capacity. TR and AN zones target high-intensity adaptation for race performance.[2]
For race-day pacing by 500m segments, use the Rowing Race Pace Calculator. To analyze your stroke efficiency, see the Rowing Stroke Efficiency Calculator.
Frequently Asked Questions
Sources & References
- Training and Racing with a Power Meter. Allen H, Coggan AR. VeloPress (2019)
- Concept2 Training Guide — Pace Zones. Concept2. Concept2.com (2024)
- The Physiological Basis of the Power-Duration Relationship. Monod H, Scherrer J. European Journal of Applied Physiology (1965)

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