Calories Burned: 5 Mistakes to Avoid

Updated 5 Oct 2026 in Health & Fitness

Estimates calories burned with MET values. The maths is not complicated, but a handful of errors come up again and again in this and related health & fitness calculations. Here is what to watch for.

Programmes such as the National Steps Challenge and the Healthy 365 app have made tracking activity common. Turning those numbers into distance, pace or calories helps set realistic goals for events like IPPT or a 10 km run.

Research has shown that Asians tend to develop conditions such as type 2 diabetes and heart disease at lower body weights than Europeans. That is why the Health Promotion Board recommends lower BMI cut-offs for Singaporeans, with 23 marking the start of moderate risk.

1. Ignoring hydration in hot weather

Outdoor activity in Singapore's climate increases fluid loss.

2. Cutting calories too aggressively

Very large deficits are hard to sustain and can lead to muscle loss.

3. Mixing units

Entering pounds or inches into a metric formula gives nonsense results.

4. Measuring inconsistently

Tape measurements change with posture and breathing; measure the same way each time.

5. Relying on a single measurement

Weight and heart rate fluctuate daily; trends tell you more.

The correct method

kcal ≈ MET × kg × hours.

For example, with these inputs:

the calculator returns:

Related calculations

The Calories Burned Calculator applies the formula consistently, so it is a quick way to double-check your own working.

Run your own numbers: Calories Burned Calculator

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