Daily energy needs (estimate)
The tool estimates the energy used in one day: BMR times an activity factor. The result is a range, not a target to reach.
General information, not medical advice. This result does not replace a doctor. If in doubt or if you have symptoms, see a health professional.
Result
2,623Estimated energy used (kcal per day)
- Low end of the range (− 10%)
- 2,361
- High end of the range (+ 10%)
- 2,886
- BMR (kcal per day)
- 1,693
- Activity factor
- 1.55
- With the other formula (kcal per day)
- 2,710
Inputs
- Sex (for the formula)
- Man
- Age
- 35
- Height
- 178
- Weight
- 75
- Usual activity
- Active, 3-5 times a week (× 1.55)
- Formula
- Mifflin-St Jeor
How it is calculated
We estimate BMR (Mifflin-St Jeor or revised Harris-Benedict).
Result
Estimated energy used (kcal per day)
- Low end of the range (− 10%)
- 2,361
- High end of the range (+ 10%)
- 2,886
- BMR (kcal per day)
- 1,693
How it is calculated
- We estimate BMR (Mifflin-St Jeor or revised Harris-Benedict).
- We multiply it by the activity factor: 1.2, 1.375, 1.55, 1.725 or 1.9.
- We show a ±10% range because every person is different.
Example
Man, 35, 178 cm, 75 kg: BMR 1,692.5 kcal × 1.55 = about 2,623 kcal per day.
Good to know
- A population estimate: it does not replace medical or dietetic advice.
- Not meant to set a diet. To lose or gain weight, talk with a health professional.
- Not suited to pregnancy, breastfeeding, children or illness.
Sources
- Mifflin et al., 1990
- Roza and Shizgal, 1984
- FAO/WHO/UNU, Human energy requirements, 2004
Frequently asked questions
What is this tool used for?
The tool estimates the energy used in one day: BMR times an activity factor. The result is a range, not a target to reach.
How is the result calculated?
We estimate BMR (Mifflin-St Jeor or revised Harris-Benedict).
What should I check before using the result?
A population estimate: it does not replace medical or dietetic advice.