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Calorie calculator
Estimate your daily calorie needs from age, height, weight, activity and goal.
Your estimate
1,927.1kcal
Suggested daily calorie target
- BMR
- 1,401.5 kcal
- Activity factor
- × 1.375
- TDEE
- 1,927.1 kcal
Maintenance target = TDEE.
General estimates for adults aged 20–100, not medical advice. These tools are not intended for pregnancy, breastfeeding, children, or clinical nutrition planning.
How this calculator works
Mifflin–St Jeor estimates resting energy: 10 × weight (kg) + 6.25 × height (cm) − 5 × age + a sex coefficient (+5 male, −161 female). This estimate is commonly used as BMR in calorie calculators.
TDEE = BMR × activity factor: 1.2 sedentary, 1.375 light, 1.55 moderate, or 1.725 active. Activity factors are planning approximations, not measured expenditure.
The goal target uses TDEE × 0.85 for loss, × 1 for maintenance, or × 1.10 for gain. These match the existing Megrami iOS assumptions.
Source: Mifflin et al., 1990, resting energy expenditure equation