BMR Calculator
Even at rest your body uses energy for breathing, circulation and heat. This calculator estimates that baseline and your daily total.
Result
1,427 kcal/day
Basal metabolic rate. With activity, about 1,962 kcal per day.
Download fjt for daily tracking and detailed results
fjt turns your sleep, movement, nutrition and heart rate into time gained or lost every day, and builds a personal route for you.
How it's calculated
- 1Mifflin–St Jeor equation: 10 × weight + 6.25 × height − 5 × age, +5 for men, −161 for women.
- 2Daily need = BMR × activity factor (1.2 sedentary – 1.9 very active).
- 3These are average estimates; individual values can differ by around 10%.
Frequently asked questions
Is BMR the same as daily calories?
No. BMR is at rest; daily needs also include movement and digestion.
How much less should I eat to lose weight?
Usually a modest deficit below your daily need is enough. Very low intake can cause muscle loss; ask a dietitian in special cases.
Does metabolism slow with age?
In the equation the value drops with age. Keeping muscle through strength training and enough protein helps limit the decline.
Sources
This tool produces an estimate and is not a medical diagnosis. Talk to a doctor about health decisions.