Body Metrics Calculator
Estimate body fat, BMR and daily calories. Free & local.
Body fat BMR Calories
Basal Metabolic Rate—
Body fat %—
Daily calories—
How it works
1
Enter details
Fill in gender, age, height and weight.
2
Pick activity
Choose your activity level for calorie needs.
3
See results
Get body fat, BMR and daily calories.
Why use Ercc Body Metrics?
Estimate
Quick estimates for body fat, BMR and calories.
Local
All data stays in your browser.
Free
No signup, no fees.
FAQ
Frequently Asked Questions
Basal Metabolic Rate is the calories your body burns at rest. It is the base for daily calorie needs.
The Navy method gives a reasonable estimate but is not as accurate as DEXA or calipers.
BMR multiplied by an activity factor (1.2 to 1.9) reflecting your lifestyle.
Generally 8-20% for men and 18-28% for women, though it varies by age and fitness.
Yes, 100% free.