Calorie Calculator
Answer: Daily calorie estimate uses Mifflin-St Jeor BMR × activity factor (1.2–1.9) for maintenance calories based on sex, age, weight, height.
Free calorie needs estimate based on BMR and moderate activity. Informational only.
Estimate only (Mifflin-St Jeor, male +5). Not medical advice.
How to use Calorie Calculator
- Enter age, sex, weight, and height (US or metric).
- Select activity level.
- Read estimated daily maintenance calories (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 Calorie Calculator?
Daily calorie estimate uses Mifflin-St Jeor BMR × activity factor (1.2–1.9) for maintenance calories based on sex, age, weight, height.
US vs metric inputs?
Toggle lb/in or kg/cm — formula constants adjust internally for consistent kcal output.
Medical advice disclaimer?
Estimates are informational — consult a US RD or NHS GP for clinical nutrition plans.
Weight loss deficit?
Subtract 300–500 kcal/day below TDEE for ~0.5–1 lb/week — slower for UK NHS-style guidance.
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