Calculate your Basal Metabolic Rate and daily calorie needs.
BMR & Calorie Calculator is a free, browser-based tool designed for students, professionals, and anyone who needs quick calculations. Calculate your Basal Metabolic Rate and daily calorie needs. Based on age, weight, height, and activity level. Free online BMR calculator. Everything runs locally in your browser using JavaScript — no data is ever sent to a server, making it completely private and secure. The tool is designed to be intuitive and beginner-friendly while still offering advanced features for power users. It loads instantly with no installation required and works offline once loaded. Use it as often as you need — there are no daily limits, no watermarks, and no hidden fees.
Yes! BMR & Calorie Calculator is completely free with no signup required. It runs entirely in your browser — your data never leaves your device.
Simply enter your values in the input fields above and the results update instantly. No button clicks needed — everything calculates in real-time.
Absolutely. BMR & Calorie Calculator runs 100% client-side in your browser using JavaScript. No data is uploaded, stored, or shared with any server. Your privacy is guaranteed.