Cycling Calories Burned Calculator
This calculator estimates calories burned cycling. If you have a power meter or smart trainer, enter average watts for the most accurate result; otherwise use your speed and ride time for road, mountain or stationary bikes.
An hour of moderate road cycling burns approximately 500 to 750 kcal. If you use a power meter, mechanical work converts directly: 1 kJ of work recorded at the pedals corresponds almost exactly to 1 kcal of metabolic energy burned due to ~24% human muscular efficiency.
Cycling Energy Expended
Compendium of Physical ActivitiesBased on your speed and riding profile, you burned approximately 588 kcal across your 60-minute session.
Burn Rate
588 kcal / hr
Hourly calorie expenditure
Relative Intensity
Moderate Aerobic
Compendium MET benchmark
Power Output & Energy Expenditure
| Endurance Training Zone | Average Watts | Typical Burn Rate |
|---|---|---|
| Light Endurance / Active Recovery | 100 – 140 W | ~350 – 500 kcal/hr |
| Moderate Aerobic Pace (Zone 2) | 150 – 200 W | ~500 – 720 kcal/hr |
| Tempo / Sweet Spot | 200 – 250 W | ~720 – 900 kcal/hr |
| Threshold & Race Pace (FTP) | 250 – 320 W | ~900 – 1,150 kcal/hr |
Human gross metabolic efficiency on a bicycle is consistently 20–25% (mean ~24.1%), making power meter calculations uniquely precise.
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Clinical Equations
WHO, CDC, ACSM & Mifflin-St Jeor
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How to use Cycling Calories Burned Calculator
- 1Select your calculation mode: Power Meter (Watts) or Speed & Terrain (METs).
- 2Enter your body weight and session duration.
- 3Input your average watts or select your riding environment (road, mountain, stationary).
- 4View your total calories, hourly burn rate, and mechanical work output.
Why power meters are the gold standard
Wind resistance, drafting, and tyre friction make speed an unreliable proxy for cycling effort. Power meters measure physical force and cadence directly at the crank, pedal, or hub.
Because human gross mechanical efficiency is roughly 24%, the conversion is remarkably straightforward: Total Work (kJ) = Average Watts × Time (seconds) / 1000 ≈ Total Calories Burned.
Frequently Asked Questions
How many calories does 30 minutes of cycling burn?
About 200 to 500 kcal depending on speed and weight.
How do I convert watts to calories?
Multiply average watts by hours × 3.6 to get kJ; kJ is roughly equal to kcal burned because the body is about 24% efficient.
Are stationary bike calories accurate?
Bike displays often overestimate; power-based readings are the most reliable.
Related Calculators
Walking Calories Burned Calculator
Calculate calories burned walking with the ACSM walking equation, incline grade, and backpack load.
Running Calories Burned Calculator
Calculate calories burned running by weight, pace, duration, and treadmill incline using ACSM equations.
METs Calculator
Calculate energy burned across 80+ activities using official 2024 Compendium MET codes and WHO targets.
Target Heart Rate Calculator
Find your target heart rate window for moderate or vigorous cardio training using Tanaka or Karvonen.
TDEE Calculator
Estimate your Total Daily Energy Expenditure and discover your true maintenance calories.
Scientific Sources & Evidence
- World Health Organization (WHO) — Body Mass Index Classification
- CDC Growth Charts — BMI-for-age LMS Percentiles
- Mifflin et al. (1990) — Basal Metabolic Rate Predictive Equations
- NICE Guideline NG246 — Identification and Management of Overweight and Obesity
- American College of Sports Medicine (ACSM) — Exercise Testing & Prescription
- European Food Safety Authority (EFSA) — Dietary Reference Values for Water