Nutter Tools
Nutter Tools

A free toolbox that runs in your browser. A tool for every job.

Your files never leave your device

Images

  • Convert images
  • Compress images
  • Resize images
  • Crop
  • Watermark

PDF & files

  • Merge PDFs
  • Split a PDF
  • Images to PDF
  • PDF to images
  • Remove photo location

Video & audio

  • Compress video
  • Convert video
  • Video to GIF
  • Convert audio
  • Trim audio

Everyday

  • QR codes
  • Passwords
  • Time zones
  • Unit converter
  • Word count
  • Webcam test

Developer

  • JSON formatter
  • Base64
  • Regex tester
  • Hashes
  • JWT decoder

Site

  • About
  • Contact
  • Settings
  • Privacy
  • Terms
  • Site map
  • llms.txt

Everyday

  • Images
  • Video
  • Audio
  • PDF & files
  • Text
  • QR codes
  • Units & math
  • Time & dates
  • Color
  • Passwords & IDs
  • Device tests
  • Sun & moon

For developers

  • JSON
  • Encoding
  • Regex & cron
  • Web & auth
  • Hashing & encryption
  • Config files
  • Network
  • Browser
  • AI
  • Fake data
© Nutter Toolsnutter.tools
  1. Home
  2. Units & math
  3. Ideal weight calculator
Your files stay on your device

Ideal weight calculator

Estimate ideal body weight from height and sex with the Devine, Robinson, Miller, and Hamwi formulas shown side by side.

This tool is in beta

Still being tested. If a result looks wrong, tell us.

Report a problem

Enter a height to see the four estimates.

These four formulas came from medication dosing work between 1964 and 1983, not from studies of what anyone should look like. They share one shape: a base weight at five feet plus a fixed amount per inch above it, and none of them accounts for frame size, muscle, or age. The useful output is the spread between them, not any single number. For a real weight target, talk to a clinician.

The body

Height unit
SexThe formulas use different constants
Output unitBoth kg and lb are always computed

Height runs from 36 to 96 inches once converted, that is 91 to 244 cm. Switching units converts the number you already typed.

More unit & math tools

  • Unit converter
  • Fraction calculator
  • Average and median
All unit & math tools

Was this tool useful?