Health
Calculator for BMR
Use weight, height, age and sex take estimate resting energy use with the Mifflin–St Jeor equation.
Add to workspaceYour numbers
Result dey update as you type; no Calculate button dey. All calculation dey run inside your browser.
Your BMR
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How your result break down
| Period | Energy |
|---|---|
| For each day (BMR) | — |
| For each week | — |
| For each 30 days | — |
| Other sex, same weight / height / age | — |
Compare your BMR with the other sex constant
Dem scale the bars against the bigger value. Na only the sex constant (+5 for male, −161 for female) inside Mifflin–St Jeor equation differ between the bars.
Formula
BMR = 10 × weight (kg) + 6.25 × height (cm) − 5 × age (years) + 5 for men or − 161 for women. Na di Mifflin–St Jeor equation be dis.
Example wey show the calculation
Weight na 65 kg, height na 170 cm, age na 30, female: BMR = 10 × 65 + 6.25 × 170 − 5 × 30 − 161 = 650 + 1,062.5 − 150 − 161 = 1,401.5 kcal/day. Dat na 9,811 kcal every week and 42,045 kcal every 30 days. With di male constant (+5 instead of −161), di same inputs give 1,567.5 kcal/day. Use Reset example above to reproduce dis result.
Where e fit work and limits
BMR na resting expenditure only — e no include activity, digestion, and exercise, so e lower pass total daily expenditure. Mifflin–St Jeor equation na population estimate: dem fit am to group averages, so individual results dey vary with body composition, illness, medications, and other factors wey inputs no capture. E no be metabolic test and no be personal energy prescription.
Dis page na for educational estimates for adults. Di original Mifflin–St Jeor study use healthy adults wey age reach 19–78; take care if you apply am beyond dat group or to person own medical circumstances. Dis no be measured metabolic rate or instruction for calorie intake.
Questions wey people dey ask often
Wetin be BMR?
Energy wey body dey use at complete rest to maintain basic functions. Any activity on top of rest dey add to am, na why total daily expenditure higher.
Why men and women dey get different results?
Mifflin–St Jeor equation dey add +5 for men and subtract 161 for women, wey reflect average differences for populations wey dem fit equation to. Na group adjustment, no be measurement of any individual.
BMR na the same as calories wey I need every day?
No. Daily need also include activity. Multiply BMR by activity factor — or use TDEE Calculator — for total daily estimate.
How accurate this estimate be?
Na estimate from population equation. Individual values fit differ materially; only metabolic test dey measure resting expenditure directly.
Una dey store my data?
No. This calculation dey run locally inside your browser; values wey you enter no dey reach any CalcMintly database.
Age dey affect am plenty?
Yes, through −5 × age term: each additional year dey lower estimate by 5 kcal/day at fixed weight and height.
Other tools wey relate to dis
- Calculator for TDEE — BMR times activity factor for total daily energy use
- Calculator for body fat — estimate body-fat percentage from BMI, age and sex
- Calculator for BMI — body mass index from height and weight
Results na estimates only and no constitute professional or medical advice.