Cycling Power Calculator
Power-to-weight ratio, training zones, and FTP estimate from cycling test data with zone-based training targets.
Inputs
Fill in the inputs and press Calculate to see your science-backed results.
How to use Cycling Power Calculator
Power-to-weight ratio, training zones, and FTP estimate from cycling test data with zone-based training targets.
Choose measurements that describe your actual session or situation, confirm the units, then calculate. Read the result alongside its assumptions and use the tool again when your inputs change.
Inputs explained
FTP (watts)
Enter a measured or estimated value (minimum 100) (maximum 500), using the unit indicated in the field label.
Bodyweight (kg)
Enter a measured or estimated value (minimum 40) (maximum 120), using the unit indicated in the field label.
Test type
Choose the option that matches your context; available options include 20 MIN, 8 MIN, RAMP.
Age
Enter a measured or estimated value (minimum 12) (maximum 80), using the unit indicated in the field label.
Sex
Choose the option that matches your context; available options include Male, Female.
How to interpret the output
Keep testing conditions and intensity consistent. Estimates from field tests do not replace laboratory assessment.
Repeat measurements using similar conditions when monitoring trends. Numerical predictions can vary with input accuracy, measurement method and individual circumstances.
Limitations and responsible use
FTP testing requires a power meter or smart trainer. Improper pacing produces inaccurate results.
Read the full disclaimerFrequently asked questions
What does the Cycling Power Calculator estimate?
Power-to-weight ratio, training zones, and FTP estimate from cycling test data with zone-based training targets.
Which information do I need for this cardio tool?
Provide FTP (watts), Bodyweight (kg), Test type, Age, Sex. Use your own relevant measurements and the units indicated in each field.
How should I interpret the result?
Keep testing conditions and intensity consistent. Estimates from field tests do not replace laboratory assessment. Compare results with your goals and other relevant observations rather than using a single output to make a major decision.
Disclaimer: FTP testing requires a power meter or smart trainer. Improper pacing produces inaccurate results. Read the medical disclaimer.
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