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Calcimator

Resting Metabolic Rate (RMR) Calculator

Calculate your Resting Metabolic Rate using the Mifflin-St Jeor equation. Estimate daily calorie needs at different activity levels.

Inputs

years
kg
cm

Results

Resting Metabolic Rate

1,649 kcal/day

TDEE (Sedentary)1,979 kcal/day
TDEE (Light Activity)2,267 kcal/day
TDEE (Moderate Activity)2,556 kcal/day
TDEE (Very Active)2,844 kcal/day

Resting Metabolic Rate

1,649 kcal/day

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Age — Your age in years. Accepts values from 15 years to 100 years (default: 30 years).
  3. Gender — Select your gender. Choose from: Male, Female. default: 1.
  4. Weight — Your weight in kilograms. Accepts values from 30 kg to 300 kg (default: 70 kg).
  5. Height — Your height in centimeters. Accepts values from 100 cm to 250 cm (default: 175 cm).
  6. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  7. Resting Metabolic Rate — shown as a numeric value. This is the primary result of this calculator.
  8. TDEE (Sedentary) — Little to no exercise.
  9. TDEE (Light Activity) — Light exercise 1-3 days/week.
  10. TDEE (Moderate Activity) — Moderate exercise 3-5 days/week.
  11. TDEE (Very Active) — Hard exercise 6-7 days/week.
  12. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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