Free Online BMR calculator
Basal metabolic rate with Mifflin-St Jeor and revised Harris-Benedict. Results are estimates for planning only.
Mifflin-St Jeor
1,618 kcal/day
- Harris-Benedict (revised)
- 1,672 kcal/day
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Tasks
Get an estimate
Enter your details; results update as you type.
How to use
- Open the tool.
- Fill in the fields (metric units unless noted).
- Read the results.
FAQ
What does BMR calculator do?
Basal metabolic rate with Mifflin-St Jeor and revised Harris-Benedict.
How do I get an estimate?
Enter your details; results update as you type.
How do I use BMR calculator?
Open the tool. Fill in the fields (metric units unless noted). Read the results.
Is my data private?
Yes. Numbers and text you enter stay on this device. Results are local estimates only.
Anything else I should know?
For information only — not medical advice.