How does VinHkE calculate calories and fat/carbs?

Recommended steps

• The starting physics: 1 W = 1 J/s, so 1 kJ is approximately 1 kcal.
• An approximate efficiency of 24% is applied to estimate actual expenditure.
• The calculation uses profile parameters such as sex, height, weight, and thresholds, plus references from FTP, FCmax, and CTL.
• The energy screens show calories and an estimate of fat and carbohydrates to understand the cost of the ride.
• It is always an estimate: use it as a reference, not as an exact measurement.

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