Calorias tempo de pedal
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The 'Cycling Calories Time' calculator estimates calories burned during cycling based on average power output (in watts) and total time in hours. The formula used is: calories = (power × time × 3.6) / 1000. This tool helps cyclists track energy expenditure, plan nutrition, or analyze training efficiency.
To use the calculator, input the riding time and average power recorded (typically measured by a power meter or cycling computer). The result approximates calorie burn, assuming 1 watt-hour equals 0.0036 kcal. Power varies with effort, terrain, and wind resistance, so the value is a theoretical average.
Note that factors like fitness level, body weight, and pedaling technique affect actual calorie burn. The tool does not account for power spikes or rest intervals, only constant averages. For greater accuracy, pair data with heart rate monitors or apps that track real-time power variations.
Frequently asked questions
Why multiply power by time and divide by 1000?
The formula uses the 3.6 conversion ratio to transform watt-hours into kilocalories. Dividing by 1000 converts joules to kilocalories, as 1 J = 0.000239 kcal.
Is the result accurate?
It's an estimate, as it considers only average power and ignores effort variations or steep terrain.
How to measure average power?
Use a power meter on your cycling computer or apps that track average power during rides.
Can I use it for meal planning?
Yes, but adjust intake based on your metabolism and personal goals, as the value is approximate.