Mass per volume density.
Pounds per Pint to Grains per Gallon Converter — lb/pt to gr/gal
Convert Pound per Pint (lb/pt) to Grain per Gallon (gr/gal) using the exact conversion factor (1 pound per pint = 56,000 grain per gallon). See the formula, worked examples, and conversion table.
Pounds per Pint to Grains per Gallon converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 958.6114185 / 0.01711806105.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Pint to Grains per Gallon
Pound per Pint and Grain per Gallon both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
grains per gallon = pounds per pint × 56000
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per pint equals 958.611418535 base units, and 1 grain per gallon equals 0.0171180610453 base units, so dividing one by the other gives the direct pound per pint-to-grain per gallon factor of 56000.
Simple example
1 lb/pt × 56000 = 56,000 gr/gal
1 pound per pint = 56,000 grains per gallon.
Real-world example
1,000 lb/pt × 56000 = 56,000,000 gr/gal
1,000 pounds per pint = 56,000,000 grains per gallon.
Conversion table
| Pound per Pint (lb/pt) | Grain per Gallon (gr/gal) |
|---|---|
| 0.1 lb/pt | 5,600 gr/gal |
| 1 lb/pt | 56,000 gr/gal |
| 10 lb/pt | 560,000 gr/gal |
| 100 lb/pt | 5,600,000 gr/gal |
| 1,000 lb/pt | 56,000,000 gr/gal |
| 10,000 lb/pt | 560,000,000 gr/gal |
Reverse conversion: Grain per Gallon to Pound per Pint
1 gr/gal × 0.00001785714286 = 0.0000178571 lb/pt
1 grain per gallon = 0.0000178571 pounds per pint.
pounds per pint = grains per gallon × 0.0000178571428571
For a page dedicated to this direction, see Grain per Gallon to Pound per Pint.
Understanding the Pound per Pint (lb/pt)
Mass per volume density.
Understanding the Grain per Gallon (gr/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per gallon are in 1 pound per pint?
1 pound per pint equals 56,000 grains per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per pint to grain per gallon?
Multiply the pound per pint value by 56000. The converter above does this instantly to whatever precision you set.
How do I convert grain per gallon back to pound per pint?
Use the reverse factor: 1 grain per gallon equals 0.0000178571 pounds per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per pint?
Pound per Pint (lb/pt) is a unit of density.
What is a grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
Is the pound per pint to grain per gallon conversion exact?
Yes. Both pound per pint and grain per gallon are defined by fixed standards rather than physical artifacts, so the factor of 56000 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.