EVERYDAY NUMBERS, MADE CLEAR.

Daily calorie needs

Health

Estimate maintenance energy based on activity level.

Your inputs
lb
in
years
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CALCULATION RESULTResult

Daily maintenance energy

1,979kcal
Resting energy1,649 kcal
Activity multiplier1.2 ×
Uses your selected currency and units

How it works

Daily energy = Mifflin–St Jeor resting energy × activity multiplier

The default 1.2 multiplier is an illustrative low-activity assumption. Adjust for your needs. Adult estimate, not a prescribed diet.

Source: Mifflin et al., 1990

What does this calculator calculate?

Estimate maintenance calories by multiplying Mifflin–St Jeor resting energy by an activity factor. The result depends on the chosen factor and individual variation.

Worked examples

These examples use fixed sample inputs, separately from your current calculation. Displayed numbers are rounded.

South Korea units

Weight
70 kg
Height
175 cm
Age
30 years
Sex used in the equation
Male
Activity multiplier
1.2 ×
Daily maintenance energy
1,979 kcal

US units

Weight
154.323584 lb
Height
68.897638 in
Age
30 years
Sex used in the equation
Male
Activity multiplier
1.2 ×
Daily maintenance energy
1,979 kcal

Frequently asked questions

What does the default activity factor of 1.2 mean?

It is an illustrative low-activity assumption. Adjust it to your actual activity; it is not a measured value.

Is the result a prescribed weight-loss target?

It estimates adult maintenance energy and is not a prescribed diet. Pregnancy, breastfeeding and growth require different assessment, as may individual health conditions.

Method and references

The default 1.2 multiplier is an illustrative low-activity assumption. Adjust for your needs. Adult estimate, not a prescribed diet.

Mifflin et al., 1990

Calculation methods, precision and data storage

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