Life Calculator
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Activity energy estimate

Estimate activity energy using a MET value matched to the activity source. MET describes an activity's metabolic intensity, not its speed.

Start with your own numbers

Editable example

An example is filled in. Replace it with your own data to calculate.

Enter body weight and activity minutes. Verify the activity-specific MET in the source.

Enter body weight (kg), for example 60. Use the displayed unit; replace the example with your own value.
Enter activity time (minutes), for example 30. Use the displayed unit; replace the example with your own value.
Check the activity in the reference source. For example, 4.3 describes a specific activity, not a speed.

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Example result

Estimated total energy during the activity

129Thermochemical kilocalories (4,184 J)

The example MET does not apply to every exercise. Total activity energy includes energy you would have used at rest.

Estimated resting energy for the same time30 Thermochemical kilocalories (4,184 J)
Estimated extra energy above resting99 Thermochemical kilocalories (4,184 J)

Worked steps

  1. Estimated total energy ≈ MET × weight in kg × hours.
  2. Estimated extra energy ≈ (MET−1) × weight in kg × hours; this is not total daily expenditure.

Simple estimated total energy = MET × kg × hours. Extra energy deducts 1 MET of resting expenditure for the same time. The 4.3 example refers to a specific brisk-walking activity in the source, not everyone's walking intensity. Educational estimate for general adult activities; not a watch measurement, exercise prescription or guaranteed weight loss. Do not add total activity energy again to a daily estimate that already includes activity.

Method and scope

Gross energy in kcal is MET times kilograms times hours. Additional energy above resting subtracts one MET over the same time.

Gross activity energy includes a resting component. Do not add it again to a daily total that already includes the activity.

The 4.3 walking example refers to a particular source activity and is not everyone's walking intensity. This is general adult educational estimation, not a wearable measurement, exercise prescription or weight-loss guarantee.

References:Hong Kong LCSD: MET formula and brisk-walking example for 60 kg

What this helps you do

Estimate activity energy using a MET value matched to the activity source. MET describes an activity's metabolic intensity, not its speed.

What to enter

Start with body weight (kg), then fill the other relevant fields in the units shown. The field hints explain the required format and examples.

How the calculation works

Gross energy in kcal is MET times kilograms times hours. Additional energy above resting subtracts one MET over the same time.

Worked example

At 60 kg, 30 minutes and 4 MET, gross energy is 120 kcal. Additional energy above resting is 90 kcal.

Understanding the answer

Gross activity energy includes a resting component. Do not add it again to a daily total that already includes the activity.

Scope and limitations

The 4.3 walking example refers to a particular source activity and is not everyone's walking intensity. This is general adult educational estimation, not a wearable measurement, exercise prescription or weight-loss guarantee.

Keep it handy for next time

Add Activity energy estimate to your home screen

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