Calculate calories burned cycling from power data or MET-based estimates. Supports indoor trainer and outdoor riding with adjustable intensity.
Cycling calorie burn depends on power, body weight, duration, and intensity, so app estimates can vary meaningfully.
This calculator uses two methods: a power-based estimate for riders with a power meter or smart trainer, and a MET-based estimate for riders who only know their pace or intensity. Power data usually gives the better planning estimate because it reflects actual mechanical work.
Use the result as a practical approximation for rides indoors or outdoors, especially when you want to compare sessions or plan fueling.
It is useful for comparing rides, planning fueling, or keeping a more consistent estimate of training load. If you have power data, the power-based shortcut is usually the most useful; if not, the MET result should be treated as a broader approximation.
Power-based method (planning estimate): kJ = Average Power (W) × Duration (s) / 1000 Calories (kcal) ≈ kJ / 4.184 / Efficiency (~0.25) Simplified: many riders use a rough kJ-to-kcal shortcut for planning, but actual values vary by efficiency. MET-based method: Calories = MET × Weight (kg) × Duration (hours) Cycling MET values: • Light (<10 mph): 4.0 • Moderate (12-14 mph): 8.0 • Vigorous (16-19 mph): 10.0 • Racing (>20 mph): 12.0 • Stationary (moderate): 7.0 • Stationary (vigorous): 10.5
Result: ~720 kcal
kJ = 200W × 3600s / 1000 = 720 kJ. Cycling efficiency varies, so this is best treated as a practical planning estimate rather than an exact metabolic measurement. The number is still close enough to be useful for ride comparisons and fueling decisions.
Power-based estimates are usually the most useful when you have a power meter because they are tied to actual mechanical work. MET-based estimates are still helpful when you only know the riding intensity or speed.
Body weight, route profile, wind, temperature, and riding position can all change the effective calorie cost. That is one reason the same ride can feel different on different days.
Use the result as a planning aid for fueling, recovery, and weekly training comparison. It is more valuable as a trend number than as a precise calorie balance calculation.
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The calculator estimates cycling calories either from mechanical work measured in kilojoules or from MET-based activity tables. It is a planning worksheet for exercise review, not a lab metabolic test and not a precise measure of energy balance.
It is usually a reasonable planning estimate when power data is available, but the exact result depends on individual efficiency and the type of ride. It should not be treated as a lab-grade measurement.
Many apps rely on heart rate or speed alone, which can be affected by drafting, wind, temperature, and fatigue. Power-based calculations are usually more stable.
It varies widely: leisurely rides may be 300-500 kcal/hr, moderate rides 500-800 kcal/hr, and harder efforts more than that. Body weight and power output are the main drivers.
Not automatically. At the same average power, the total work is similar, but mountain biking often includes more surges and upper-body movement, which can raise the total somewhat.
That depends on your goal. For weight maintenance or performance fueling, replacing some of the calories can make sense; for weight loss, you may choose to replace only part of them.
If you measure power, the same estimate logic applies. Without power data, stationary-bike MET estimates are still useful but remain approximate.