male, age 35, 82 kg
- Sedentary TDEE
- 2115 kcal/day
- Moderate TDEE
- 2732 kcal/day
- Formula
- Mifflin-St Jeor
BMR Calculator
Use this free BMR calculator to estimate resting daily energy needs from age, sex, height, and weight.
Research-based formula Estimate limits shown Examples included Private history
Formula steps
- Multiply weight by 10.
- Multiply height by 6.25, subtract 5 times age, then apply the sex adjustment.
- Use BMR as resting energy before activity is added.
How to use the bmr calculator
- Enter the requested measurements, dates, lab values, or workout details.
- Check that the units and formula assumptions match what the tool is asking for.
- Press the calculate button to see the answer, supporting metrics, and formula steps.
- Read the estimate with the health disclaimer in mind, then copy the result if you need it for notes.
Common uses
Estimate resting energy needs before activity is added.
Compare BMR with TDEE and calorie targets.
Understand how height, weight, age, and formula sex affect the estimate.
Use as the base for nutrition planning tools.
Examples
BMR estimate
BMR estimate
Estimated daily expenditure
Frequently asked questions
Quick answers about formulas, inputs, estimate limits, professional guidance, examples, and private in-browser history.
What can I use the BMR Calculator for?
Use it for quick educational estimates, planning, comparison, and trend checks. Health and fitness results should be interpreted with context, not as a diagnosis.
How does the BMR Calculator calculate the result?
BMR uses the Mifflin-St Jeor equation: 10 x weight kg + 6.25 x height cm - 5 x age + sex adjustment.
Is this medical advice?
No. This page provides an educational estimate only. Talk with a qualified health professional before making medical, pregnancy, nutrition, medication, or safety decisions.
Are my health inputs private?
Yes. The calculator runs in your browser tab. Recent answers stay only on the page while you use it and are not sent to a server.