Daily calorie calculator

Roughly how many calories your body burns a day, from your sex, age, height, weight and activity.

The numbers are estimates for healthy adults and do not replace medical advice or a diagnosis. If you have a condition, take medication, are pregnant or breastfeeding, talk to your doctor first. Read the medical disclaimer.

Step 1 of 3

You

Start with your sex and your age.

Sex

FemaleMale

Age (years)

From 10 to 100

Result

Fill in the fields to see the result.

How it is calculated

Basal metabolism (BMR) uses the Mifflin-St Jeor equation: 10 × weight (kg) + 6.25 × height (cm) − 5 × age (years), plus 5 for men or minus 161 for women.

Daily calories (TDEE) are the BMR times an activity factor: 1.2 sedentary, 1.375 light, 1.55 moderate, 1.725 high, 1.9 very high. The result is rounded to the nearest 10.

It is an estimate of the average: a real person’s expenditure can differ by 10% or more. Under 18, with a body mass index below 18.5, in pregnancy and while breastfeeding the tool gives no number.

Sources: Mifflin MD, St Jeor ST et al., Am J Clin Nutr 1990;51:241–247 · Frankenfield D et al., J Am Diet Assoc 2005;105:775–789.