Calorie Needs Calculator
Jenzzy calculates basal metabolic rate and total daily energy expenditure for weight maintenance goals.
Inputs
Results
Enter values to see results.
Formula
BMR (M) = 10w + 6.25h − 5a + 5; TDEE = BMR × activity factor
Weight in kg, height in cm, age in years; activity multiplier ranges from sedentary to very active.
Example
- BMR: ≈ 1,738 kcal
- TDEE: 1738 × 1.55 ≈ 2,694= 2,694 kcal
Result: ≈ 2,694 kcal/day to maintain weight
Frequently Asked Questions
Weight loss?
Subtract 300–500 kcal for moderate loss; consult a clinician for aggressive deficits.
Accuracy?
Equations estimate population averages—track weight and adjust.
Pregnancy?
Use pregnancy-specific guidance instead.