Ideal Weight Calculator Online

Your measurements

Choose your units, then enter the details you want to use.

Your estimate will appear here

Complete the relevant fields and select Calculate. Changes to your inputs clear the previous result.

Educational estimates, with their equations and assumptions. They do not diagnose a condition or prescribe a treatment.

Method, assumptions & sources

Who this is for

Adults aged 20 or older, outside pregnancy and breastfeeding; educational estimates for generally healthy adults. Height must be at least 152.4 cm (5 ft).

How it works

For x = height in inches − 60: Robinson kg = 52+1.9x (male), 49+1.7x (female); Miller kg = 56.2+1.41x, 53.1+1.36x; Devine kg = 50+2.3x, 45.5+2.3x. Original Hamwi pounds = 106+6x, 100+5x, then convert pounds to kg. No extrapolation below 5 ft.

Keep in mind

“Ideal” is a historical name, not a beauty standard or personalized healthy weight.
These old height-only equations are not suitable for drug dosing or choosing a weight-loss target.

Sources

Peterson et al. (2016), Table 3: historical weight equations (opens in a new tab)