← All converters

PPM to Grains per Gallon (GPG)

Convert PPM water hardness to GPG for water softener sizing.

→
Formula: ppm × 0.0584 = GPG
How to use this converter
  1. 1Enter PPM.
  2. 2GPG appears instantly.
Common questions
150 ppm = 8.76 GPG — hard water.
Related converters
GPG to PPM ConverterGPG to mg/L Convertermg/L to GPG Converter