EVERYDAY NUMBERS, MADE CLEAR.

Basal metabolic rate

Health

Estimate daily energy needs at rest.

Your inputs
lb
in
years

Update your values, then select Calculate.

Inputs stay when changing country. Body units convert automatically; currencies are not exchanged.

CALCULATION RESULTResult

Daily resting energy

1,649kcal
Resting energy1,649 kcal
Uses your selected currency and units

How it works

Mifflin–St Jeor: 10W + 6.25H − 5A + s (male +5, female −161)

W=kg, H=cm, A=age. Estimates adult resting energy expenditure; not for pregnancy, breastfeeding or growing children.

Source: Mifflin et al., 1990

What does this calculator calculate?

Estimate resting energy expenditure using the Mifflin–St Jeor equation and weight, height, age and equation sex. The result is an estimate in kcal/day before activity energy.

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
Daily resting energy
1,649 kcal

US units

Weight
154.323584 lb
Height
68.897638 in
Age
30 years
Sex used in the equation
Male
Daily resting energy
1,649 kcal

Frequently asked questions

Which BMR equation is used?

The rounded Mifflin–St Jeor equation is 10×weight(kg) + 6.25×height(cm) − 5×age + a sex constant: +5 for male, −161 for female.

Is this my total daily calorie intake?

No. It estimates resting energy. Use the daily calorie calculator to estimate maintenance energy including an activity multiplier.

Method and references

W=kg, H=cm, A=age. Estimates adult resting energy expenditure; not for pregnancy, breastfeeding or growing children.

Mifflin et al., 1990

Calculation methods, precision and data storage

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