PPM to Grains per Gallon Converter
Convert parts per million (ppm) to grains per gallon (gpg). Type a number in either box and the result appears as you type.
Enter a number, for example 12.5
1 part per million = 0.05841783116 grains per gallon
Formula: gpg = ppm × 0.05841783116
How to convert parts per million to grains per gallon
1 part per million = 0.05841783116 grains per gallon
To convert parts per million to grains per gallon, multiply the value by 0.05841783116.
Example: 5 ppm × 0.05841783116 = 0.2920891558 gpg
PPM to Grains per Gallon conversion table
| Part per million (ppm) | Grain per gallon (gpg) |
|---|---|
| 1 | 0.058417831 |
| 2 | 0.11683566 |
| 3 | 0.17525349 |
| 4 | 0.23367132 |
| 5 | 0.29208916 |
| 10 | 0.58417831 |
| 15 | 0.87626747 |
| 20 | 1.1683566 |
| 25 | 1.4604458 |
| 50 | 2.9208916 |
| 75 | 4.3813373 |
| 100 | 5.8417831 |
| 250 | 14.604458 |
| 500 | 29.208916 |
| 1,000 | 58.417831 |
About parts per million and grains per gallon
Part per million (ppm)
One part in a million by mass, 1 mg per kg. For water and dilute solutions in water, 1 ppm equals 1 mg/L. Used for chlorine, TDS and nutrients.
Grain per gallon (gpg)
One grain (64.79891 mg) per US gallon, about 17.1 mg/L. Used for water hardness and water softener settings in the United States.
Frequently asked questions
What is 1 ppm in grains per gallon?
1 ppm = 0.05841783116 gpg.
What is 1 gpg in parts per million?
1 gpg = 17.11806105 ppm.
How do I convert parts per million to grains per gallon?
To convert parts per million to grains per gallon, multiply the value by 0.05841783116. 1 part per million = 0.05841783116 grains per gallon.