Ideal Weight Calculator
Devine formula estimate for adults.
Enter your values in the interactive calculator to see an instant result. Calculations run in your browser, without an account.
Results are estimates for educational use; confirm important decisions with appropriate experts.
Formula • Worked example • Interpretation
Understand reference-weight formulas
So-called “ideal weight” formulas provide historical reference values, not a universally healthy target for every adult.
Calculation method
Worked example
For a 5 ft 10 in male using the Devine formula: 50 + 2.3 × 10 = 73 kg.
What your result means
A formula-based estimate is not a personal diagnosis. Frame size, muscle mass, age, health conditions and body composition can make a single number misleading.
Tips for better calculations
If you need a general screening value, use BMI alongside professional guidance rather than assuming this number is a health goal.
Assumptions and limitations
The Devine formula originated for medical dosing estimates and should not be treated as a clinical weight-loss recommendation, especially for children or pregnancy.
SiCalcs tools provide estimates and educational calculations; they do not replace professional financial, medical, tax, or legal advice.