Cycling Calorie Calculator
How many calories does cycling burn? Calculate your exact calorie expenditure for road cycling, mountain biking, and indoor riding based on MET values and power output.
Scientific Methodology & Accuracy
Our tools are built using peer-reviewed research and industry-standard formulas. This specific calculator utilizes CALORIE CALCULATOR metrics validated by sports science organizations like the ACSM and NSCA.
Bio-mechanical efficiency is directly improved when training is targeted at specific energy system requirements.
Performance Concept
"Athletic dominance is increasingly driven by granular analysis and real-time metabolic feedback."
Expert Protocol
"Focus on the 'internal load' (RPE) to complement the 'external load' (pace/watts) for a complete picture. Inadequate electrolyte replacement in hot conditions can cause dangerous hyponatremia."
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How to Use This Tool
- 1
Enter your current body weight, height, age, and sex into the Cycling Calorie Calculator.
- 2
Select the activity level that best matches your weekly exercise volume (err conservative if unsure).
- 3
Use the TDEE output as your maintenance calories. Set a 15–20% deficit for fat loss, or 5–10% surplus for muscle gain.
- 4
Recalculate every 4–6 weeks as body weight changes alter your BMR and TDEE.
Key Terminology
Frequently Asked Questions
Q1 How do I calculate my FTP from a 20-minute test?
Perform a 20-minute all-out time trial after a proper warm-up. Multiply your average power by 0.95 to estimate your 60-minute FTP. The 5% deduction accounts for the difference between 20-minute and 60-minute maximum efforts.
Q2 What W/kg ratio do I need to be competitive?
Category 4 racers average 2.5–3.0 W/kg FTP. Category 1–2 racers maintain 4.0–5.0 W/kg. Professional cyclists are at 5.5–6.5 W/kg. For group ride leaders, aim for 3.0+ W/kg.
Q3 How does cadence affect cycling performance?
Higher cadence (85–100 RPM) shifts effort from muscles to the cardiovascular system, reducing local muscular fatigue on long rides. Lower cadence (<70 RPM) increases torque demands and knee joint stress. Most coached cyclists aim for 85–95 RPM.
Q4 How do I calculate speed from gear ratio and cadence?
Speed (km/h) = (chainring teeth ÷ cassette teeth) × wheel circumference (m) × cadence (RPM) × 0.06. A 50×17 gear at 90 RPM with a 2.1m wheel circumference produces approximately 33.5 km/h.
Cycling Calorie Expenditure: The Science
Calorie burn while cycling is primarily determined by mechanical power output. At a given speed, heavier riders burn more calories; at a given power output, calorie burn is largely independent of body weight.
MET-Based Calculation
The Metabolic Equivalent of Task (MET) method assigns calorie multipliers by exercise intensity:
Calories/hour = MET imes body weight (kg) imes 1.05
| Cycling Intensity | Speed (km/h) | MET |
|---|---|---|
| Very Light (leisure) | < 15 | 4.0 |
| Light (casual) | 15–19 | 6.0 |
| Moderate | 20–22 | 8.0 |
| Vigorous | 23–25 | 10.0 |
| Racing pace | 26–30 | 12.0 |
| High-intensity racing | > 30 | 15.8 |
| Mountain biking | — | 8.5 |
| Indoor cycling (moderate) | — | 6.8 |
| Indoor cycling (spin class) | — | 9.5 |
*Source: Ainsworth BE, et al. (2011). 2011 Compendium of Physical Activities. Medicine & Science in Sports & Exercise, 43(8), 1575–1581.*
Power-Based Calculation (Most Accurate)
If you have a power meter, use this formula:
Calories approx Power (watts) imes hours imes 3.6
This works because cycling mechanical efficiency is ~25%, meaning kilojoules of mechanical work ≈ kcal burned (a reliable rule of thumb for trained cyclists).
ℹ️ Note
Example: 200W for 2 hours = 200 × 2 × 3.6 ≈ 1,440 kcal. The kilojoule-to-kcal equivalence is specific to cycling; running and swimming have different mechanical efficiency profiles.
Fueling by Ride Duration
| Duration | Carb Strategy |
|---|---|
| < 60 min | Water only |
| 60–90 min | 30–60g carbs/hour |
| 90 min – 3 hrs | 60–90g carbs/hour |
| > 3 hrs | 90g carbs/hour (glucose + fructose mix) |
*Source: Burke LM, et al. (2011). Carbohydrates for Training and Competition. Journal of Sports Sciences, 29:S17–S27.*
⚠️ Warning
Calorie burn estimates are population averages. Individual metabolic efficiency varies by 10–20%.
Use Cases / Example Scenarios
After a 20-minute all-out effort, use this tool to calculate your FTP and automatically set all 7 Coggan training zones.
Input your power output, body weight, and gradient to project your VAM (meters/hour) and compare to segment benchmarks.
Identify the optimal chainring/cassette combination for your target cadence (85–95 RPM) on your most common terrain.
Calculate sustainable race watts to prevent early fatigue. Stay at 88–93% FTP (Sweet Spot) for events over 90 minutes.
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