基礎代謝率計算器
計算您的基礎代謝率和每日卡路里需求。
BMR
TDEE
Mifflin-St Jeor 公式精度
本計算器使用 Mifflin-St Jeor 方程，被認為是最精確的 BMR 公式之一。它綜合體重、身高、年齡和性別來估算代謝率。
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精心挑選的實用工具
Calculating Your Basal Metabolic Rate (BMR)
Overview
Basal metabolic rate (BMR) is the number of calories your body burns at complete rest just to stay alive — breathing, circulation, cell repair. It is the foundation for any calorie or weight plan. This calculator estimates your BMR from age, sex, height, and weight in your browser.
How to Use (Step by Step)
- 1
Enter age, sex, height, and weight
These four inputs drive the Mifflin-St Jeor formula.
- 2
Read your BMR
The result is your resting daily calorie burn.
- 3
Apply an activity factor
Multiply by your activity level to estimate total daily calories (TDEE).
How It Works
The tool uses the Mifflin-St Jeor equation, the most accurate widely used BMR formula, which combines weight, height, age, and sex into a daily resting calorie figure. BMR is not your full daily burn — multiplying it by an activity factor gives total daily energy expenditure (TDEE), the calories you actually use. Knowing BMR lets you set a sensible calorie target for maintenance, loss, or gain.
When to Use This
Setting a starting point for a calorie plan. Understanding the minimum calories your body needs at rest. Calculating TDEE by applying an activity multiplier.
Frequently Asked Questions
BMR is calories burned at rest; TDEE adds the calories from daily activity and exercise. TDEE is BMR multiplied by an activity factor.