BMR Calculator
Estimate your basal metabolic rate (BMR) and see calories at common activity levels.
BMR
—
kcal/day
Height & Weight
—
as entered
Sex & Age
—
for reference
Estimated calories by activity
| Sedentary (little or no exercise) | — |
| Light (1–3 days/week) | — |
| Moderate (3–5 days/week) | — |
| Very Active (6–7 days/week) | — |
Multipliers: 1.2, 1.375, 1.55, 1.725.
Formula & Notes
- Harris–Benedict (Imperial): Male: 66.47 + 6.24×lb + 12.7×in − 6.7×age; Female: 65.51 + 4.34×lb + 4.7×in − 4.7×age.
- Metric inputs are converted to imperial internally.
- Activity estimates = BMR × multiplier (not individualized coaching).