Cycling Efficiency Factor Calculator
Efficiency factor from power and heart rate.
Work It Out And Get Clear Answers
Efficiency factor from power and heart rate.
Cycling Efficiency Factor Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Press Calculate to see the result.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Cycling Efficiency Factor Quick Guide
Typical values for reference.
| Normalised power (W) | Average heart rate (bpm) | Efficiency factor |
|---|---|---|
| 220 | 150 | 1.47 |
| 110 | 150 | 0.7333 |
| 440 | 150 | 2.93 |
| 220 | 75 | 2.93 |
| 220 | 300 | 0.7333 |
| Rule of thumb: check your inputs, use the result as a guide and round sensibly. | ||
Cycling Efficiency Factor FAQ
Answers to common questions about this calculator.
EF = normalised power ÷ average heart rate.
It uses the default inputs shown and the formula described above. Change any value and press Calculate to see how the result moves.
It is an estimate based on the inputs you enter. Check real quotes, labels, product data or official guidance for important decisions.
Yes. Replace each input with your own figures and press Calculate to update the result.