Loading…
Calculators
Calculate your ideal body weight range using multiple medical formulas: Devine, Robinson, Miller, and Hamwi. Supports metric and imperial units with gender-specific calculations.
Follow these simple steps to get instant, accurate results directly in your browser:
Choose male or female (equations use biological sex due to physiological skeletal differences).
Input your height in centimeters or feet and inches, and your age.
Review results across the Devine, Robinson, Miller, and Hamwi formulas.
The Ideal Weight Calculator estimates your healthy ideal body weight range based on your standing height, biological sex, and age using the four major clinical formulas: Devine, Robinson, Miller, and Hamwi.
Originally developed by medical researchers and clinical pharmacologists to calculate safe drug dosages and intravenous fluid administrations, ideal body weight formulas provide standardized benchmarks across adult populations. The tool displays the results of each established formula alongside a consensus healthy weight corridor based on normal BMI standards (18.5 to 24.9).
All medical calculations run locally on your device in your web browser session, guaranteeing complete confidentiality.
Disclaimer: This tool provides general estimates for informational purposes only and does not constitute medical advice. Consult a healthcare professional before making health or fitness decisions.
Men: IBW (kg) = 50.0 kg + 2.3 kg per inch over 5 feet
Women: IBW (kg) = 45.5 kg + 2.3 kg per inch over 5 feetDeveloped by Dr. Ben J. Devine in 1974 for medical dosage calculations, remaining the most commonly cited clinical formula.
Male, Height = 5 feet 10 inches (10 inches over 5 feet) IBW = 50.0 + (2.3 * 10) = 50.0 + 23.0 = 73.0 kg (160.9 lbs).
Our calculation methodologies adhere to published guidelines from authoritative government agencies and standards bodies:
Computes Devine (1974), Robinson (1983), Miller (1983), and Hamwi (1964) standards.
Synthesizes formula outputs into an easy-to-understand target weight range.
Seamlessly converts between kilograms and pounds/stones.
Biometric measurements never leave your computer.
Establish a realistic, medically sound goal weight for long-term health and wellness.
Compare traditional clinical formulas with modern BMI healthy weight ranges.
Understand standard benchmark weight tables used in actuarial assessments.
Explore complementary utilities for your workflow