BMR Calculator
Basal metabolic rate — the calories you burn at complete rest.
kg
cm
yrs
Basal metabolic rate
1,649kcal/day
calories burned at complete rest
Sedentary needs
1,979kcal
Moderate needs
2,556kcal
Active needs
2,844kcal
ShowHide the working
- 1Mifflin–St Jeor: 10×70 + 6.25×175 − 5×30 + 5 = 1,649 kcal
Formula
BMR = 10w + 6.25h − 5a + (5 or −161)How it works
The Mifflin–St Jeor equation estimates the calories your body burns at complete rest — the floor of your daily energy needs.
Example
A 30-year-old man, 70 kg and 175 cm, has a BMR of about 1,649 kcal/day.
For general information only, not medical advice. Individual needs vary — consult a qualified health professional.
About the BMR Calculator
Basal metabolic rate — the calories you burn at complete rest. It sits in the Health & Fitness section of NWS Calc, a free collection of calculators that run entirely in your browser. There is no signup, no paywall and no tracking — open the page, enter your numbers, get an answer.
Frequently asked questions
- Is the BMR Calculator free to use?
- Yes. Every calculator on NWS Calc is completely free, with no signup, no usage limits and no ads.
- Does my data leave my device?
- No. The BMR Calculator runs entirely in your browser using JavaScript. Nothing you type is uploaded, logged or stored on a server.
- Can I use the BMR Calculator on my phone?
- Yes. The page is fully responsive and works in any modern mobile or desktop browser — there is nothing to install.
- What else is in Health & Fitness?
- BMI, body fat, calories, macros, heart rate and training numbers. You can browse the full Health & Fitness category for related calculators.