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BMR Calculator for Women

Women's BMR calculator (Mifflin-St Jeor): enter age, height and weight for your basal metabolic rate, with Harris-Benedict and Katch-McArdle results.

Free online · Instant results

BMR = calories burned at complete rest. Mifflin-St Jeor is the most accurate for the general population (ADA recommendation); Katch-McArdle is better if you know your body fat %.

Age

Height (cm)

Weight (kg)

Body fat % (optional)

Mifflin-St Jeor BMR

1,402 kcal/day

Mifflin-St Jeor1,402 kcal

Harris-Benedict1,445 kcal

Katch-McArdleneeds body fat %

Lean body mass—

Step-by-step

1Mifflin-St Jeor (female): 10×65 + 6.25×170 − 5×30 − 161 = 1,402 kcal
2Formulas spread: Mifflin 1,402 / Harris 1,445 kcal
3Next step: multiply by activity factor (1.2–1.9) to get TDEE

Typical BMR reference (Mifflin)

Profile	BMR
M 25y 170cm 65kg	1,593 kcal
M 40y 172cm 75kg	1,630 kcal
F 25y 160cm 52kg	1,234 kcal
F 40y 162cm 60kg	1,252 kcal

💡 BMR is 60–75% of daily burn. Muscle is metabolically active: +1 kg muscle ≈ +13 kcal/day. Crash dieting below BMR triggers adaptive thermogenesis — weight rebounds faster.

Frequently Asked Questions

Why is female BMR lower than male BMR?▼

Women naturally have more body fat and less muscle than men of the same size, and muscle burns more calories than fat — so female BMR is about 5-10% lower.

What is a typical BMR for women?▼

Adult women usually have a BMR of 1200-1500 kcal/day depending on weight, height and age.

How do I use the BMR Calculator?▼

Open the page and fill in the input fields — results update automatically. Basal metabolic rate — Mifflin & Harris-Benedict equations.

Are the results accurate?▼

Results follow published international standards (WHO, ACE, IOM) and are for reference only.

Can this replace medical advice?▼

No. Always consult a qualified healthcare professional for health decisions.

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This is a dedicated variant of the BMR Calculator, pre-configured for this scenario with tailored FAQs.