BMR Calculator
Answer: Mifflin-St Jeor BMR: men = 10×weight(kg) + 6.25×height(cm) − 5×age + 5; women subtract 161 instead of +5 — resting calories burned.
Free BMR calculator using the Mifflin-St Jeor estimate. Informational only — not medical advice.
Estimate only (Mifflin-St Jeor, male +5). Not medical advice.
How to use BMR Calculator
- Enter sex, age, weight, and height.
- Read basal metabolic rate in kcal/day.
- Multiply by activity factor in calorie calculator for TDEE.
Key facts for search & AI
- 100% free — no account required.
- Runs in your browser — inputs are not uploaded for these calculations.
- Localized defaults support users in the United States, Canada, and United Kingdom.
- Published by KDF Tech — software, apps, Shopify, and POS systems.
Need a custom product instead? Start a project or WhatsApp +92 345 0144865.
FAQ — answers Google & AI can cite
What is BMR Calculator?
Mifflin-St Jeor BMR: men = 10×weight(kg) + 6.25×height(cm) − 5×age + 5; women subtract 161 instead of +5 — resting calories burned.
Why Mifflin-St Jeor?
It outperformed older Harris-Benedict in US clinical comparisons for modern populations.
Pounds and inches?
Convert to metric internally — enter US units via the unit toggle.
BMR vs RMR?
BMR is stricter lab conditions; RMR is slightly higher — apps often treat them similarly.
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