Mass per volume density.
Long tons per Pint to Grains per Quart Converter — long ton/pt to gr/qt
Convert Long ton per Pint (long ton/pt) to Grain per Quart (gr/qt) using the exact conversion factor (1 long ton per pint = 31,360,000 grain per quart). See the formula, worked examples, and conversion table.
Long tons per Pint to Grains per Quart 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 2.14728958e+6 / 0.06847224418.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Long tons per Pint to Grains per Quart
Long ton per Pint and Grain per Quart 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 quart = long tons per pint × 31360000
This factor comes from each unit's defined relationship to the category's base unit: 1 long ton per pint equals 2147289.57752 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct long ton per pint-to-grain per quart factor of 31360000.
Simple example
1 long ton/pt × 31360000 = 31,360,000 gr/qt
1 long ton per pint = 31,360,000 grains per quart.
Real-world example
1,000 long ton/pt × 31360000 = 31,360,000,000 gr/qt
1,000 long tons per pint = 31,360,000,000 grains per quart.
Conversion table
| Long ton per Pint (long ton/pt) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 long ton/pt | 3,136,000 gr/qt |
| 1 long ton/pt | 31,360,000 gr/qt |
| 10 long ton/pt | 313,600,000 gr/qt |
| 100 long ton/pt | 3,136,000,000 gr/qt |
| 1,000 long ton/pt | 31,360,000,000 gr/qt |
| 10,000 long ton/pt | 313,600,000,000 gr/qt |
Reverse conversion: Grain per Quart to Long ton per Pint
1 gr/qt × 3.188776e-8 = 3.188776e-8 long ton/pt
1 grain per quart = 3.188776e-8 long tons per pint.
long tons per pint = grains per quart × 3.188776e-8
For a page dedicated to this direction, see Grain per Quart to Long ton per Pint.
Understanding the Long ton per Pint (long ton/pt)
Mass per volume density.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per quart are in 1 long ton per pint?
1 long ton per pint equals 31,360,000 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert long ton per pint to grain per quart?
Multiply the long ton per pint value by 31360000. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to long ton per pint?
Use the reverse factor: 1 grain per quart equals 3.188776e-8 long tons per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a long ton per pint?
Long ton per Pint (long ton/pt) is a unit of density.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
Is the long ton per pint to grain per quart conversion exact?
Yes. Both long ton per pint and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 31360000 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.