Health calculators
Reference calculators for everyday body metrics. Convertitive runs everything locally — inputs never leave your device — and treats each tool as a screening reference, not a clinical diagnosis. Always pair the result with advice from someone who can see the rest of your medical picture.
Available calculators
BMI calculator
Body Mass Index with WHO categories and the healthy weight range for your height. Metric and imperial.
BMR & TDEE calculator
Basal metabolic rate via Mifflin-St Jeor, plus daily energy expenditure for five activity levels.
Body fat percentage
US Navy tape method — three measurements, instant percentage, ACE category bands.