Health Tools
Fast, simple calculators for everyday use. Educational only.
BMI Calculator
Calculate BMI using metric or US units. Shows category and a healthy weight range.
BMR Calculator
Estimate Basal Metabolic Rate (Mifflin–St Jeor).
TDEE Calculator
Estimate daily calories burned (TDEE) from BMR and activity level.
Heart Rate Zones
Estimate max heart rate and common training zones (age-based).
Glucose Unit Converter
Convert glucose between mg/dL and mmol/L.
HbA1c ↔ eAG
Convert HbA1c (%) to estimated average glucose (eAG) and back.
Unit Converter
Length, weight, and area conversions.
Educational only. Not medical advice.