Grain per Gallon (US) to Part per Million Conversion

Convert between Grain per Gallon (US) and Part per Million quickly and accurately.

gr/gal (US)
ppm

How to Convert Grain per Gallon (US) to Part per Million

Conversion Formula

1 gr/gal (US) = 17.138 ppm
1 ppm = 0.058 gr/gal (US)

Example

Convert 15 gr/gal (US) to ppm:

15 gr/gal (US) = 15 × 17.138 ppm = 257.065 ppm

Unit Information

Learn about the concentration - solution units you're converting between

Grain per Gallon (US)

gr/gal (US)

Definition

The grain per gallon (US) is a unit of mass concentration used in the United States, representing grains of solute per US gallon of solution. It is commonly used in water treatment and industrial applications in the US.

History/Origin

This unit combines the traditional grain (a unit of mass) with the US gallon (a unit of volume). It emerged from US industrial practices and is still used in water treatment and chemical processing industries in the United States.

Current Use

Primarily used in the United States for water treatment, chemical processing, and industrial applications. It is commonly found in water quality reports and chemical specifications in US-based industries.

Multiplier

0

Offset

0

Part per Million

ppm

Definition

Parts per million is a dimensionless unit expressing the ratio of one part solute to one million parts solution by mass. It is widely used for expressing very low concentrations in environmental and industrial applications.

History/Origin

The concept of parts per million originated in analytical chemistry as a convenient way to express very small concentrations. It became standardized in environmental regulations and industrial quality control for its simplicity and clarity.

Current Use

Universally used in environmental science, water treatment, air quality monitoring, and industrial quality control. It is the standard unit for expressing concentrations of contaminants, additives, and trace elements in various media.

Multiplier

1E-6

Offset

0

Grain per Gallon (US) to Part per Million Conversion Table

Grain per Gallon (US) [gr/gal (US)] Part per Million [ppm]
1 gr/gal (US) 17.137654 ppm
10 gr/gal (US) 171.376541 ppm
25 gr/gal (US) 428.441351 ppm
50 gr/gal (US) 856.882703 ppm
100 gr/gal (US) 1713.765406 ppm
0 gr/gal (US) 0E+0 ppm
-10 gr/gal (US) -171.376541 ppm
-40 gr/gal (US) -685.506162 ppm