Health & Fitness Tools

BMR Calculator

Estimate daily baseline calorie needs using common formula assumptions.

Evidence-aware calculator

Estimate resting energy expenditure with the published equation

Inputs are explicit, assumptions are disclosed, and health-related outputs are framed as screening or planning estimates rather than diagnoses or prescriptions.

Weight

Height

Age

years

Equation sex termThe original Mifflin–St Jeor equation was published with separate male and female constants.

Result

1,593 kcal/day

Estimate

Resting energy expenditure (REE)

Weight

70.0 kg

Height

170.0 cm

Age

35 years

This is a predictive estimate using the simplified Mifflin–St Jeor equation. It is not a measurement of your metabolism; indirect calorimetry is the reference measurement method.

Reference: Mifflin et al., American Journal of Clinical Nutrition, 1990 (PubMed PMID 2305711).