Health Calculators

Ideal Body Weight Calculator

Use this free ideal body weight calculator to calculate accurate results instantly with clear inputs, formulas, and rounded answers.

Free browser-based tool • No signup required
Ideal Body Weight

Ideal Body Weight Calculator

Estimated ideal body weight
Metric equivalent
Results are estimates for informational purposes. Verify critical calculations and project requirements independently.

Calculator Inputs and Outputs

Inputs

  • Formula constant — example: male
  • Height (in) — example: 70

Results

  • Estimated ideal body weight (lb)
  • Metric equivalent (kg)

Formula used

The Devine formula uses a base weight at 5 feet plus 2.3 kg for each inch above 5 feet.

How to Use the Ideal Body Weight Calculator

Enter the requested values, review the units, and select Calculate Ideal Body Weight. The result updates immediately using the formula below.

Formula

The Devine formula uses a base weight at 5 feet plus 2.3 kg for each inch above 5 feet.

Example and Accuracy

The default values provide a working example. Change any input to calculate your own result. The calculator keeps full internal precision and rounds displayed values for readability.

Important Note

This calculator provides an informational estimate. Verify critical financial, medical, construction, scientific, or legal decisions with an appropriate qualified professional.

Calculation Standards

This tool uses documented formulas and high-precision internal values. Displayed results may be rounded for readability. Review the assumptions and verify important decisions with a qualified professional.

Read our calculation methodology