Mass per volume density.
Grams per Cubic foot to Grains per Quart Converter — g/ft3 to gr/qt
Convert Gram per Cubic foot (g/ft3) to Grain per Quart (gr/qt) using the exact conversion factor (1 gram per cubic foot = 0.5157515595 grain per quart). See the formula, worked examples, conversion table, and common uses.
Grams per Cubic foot 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 0.03531466672 / 0.06847224418.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cubic foot to Grains per Quart
Gram per Cubic foot 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. Gram per Cubic foot is most often used for can be used to express the density of low-density materials such as insulation foam, packaging material, or gas concentration by volume — for typical solid or liquid materials, kilograms per cubic meter or pounds per cubic foot are more commonly encountered.
Formula
grains per quart = grams per cubic foot × 0.515751559538
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cubic foot equals 0.0353146667215 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct gram per cubic foot-to-grain per quart factor of 0.515751559538.
Simple example
1 g/ft3 × 0.5157515595 = 0.5157515595 gr/qt
1 gram per cubic foot = 0.5157515595 grains per quart.
Real-world example
1,000 g/ft3 × 0.5157515595 = 515.7515595 gr/qt
1,000 grams per cubic foot = 515.7515595 grains per quart.
Conversion table
| Gram per Cubic foot (g/ft3) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 g/ft3 | 0.051575156 gr/qt |
| 1 g/ft3 | 0.5157515595 gr/qt |
| 10 g/ft3 | 5.157515595 gr/qt |
| 100 g/ft3 | 51.57515595 gr/qt |
| 1,000 g/ft3 | 515.7515595 gr/qt |
| 10,000 g/ft3 | 5,157.515595 gr/qt |
Reverse conversion: Grain per Quart to Gram per Cubic foot
0.5157515595 gr/qt × 1.938918034 = 0.9999999999 g/ft3
0.5157515595 grains per quart = 0.9999999999 grams per cubic foot.
grams per cubic foot = grains per quart × 1.93891803429
For a page dedicated to this direction, see Grain per Quart to Gram per Cubic foot.
Understanding the Gram per Cubic foot
Gram per Cubic foot (g/ft3) measures density. A gram is a small mass unit and a cubic foot a comparatively large volume, so this combination naturally suits low-density materials rather than typical solids or liquids. It is classified as a mixed metric/US customary density unit.
Uses of the Gram per Cubic foot today
- Can be used to express the density of low-density materials such as insulation foam, packaging material, or gas concentration by volume — for typical solid or liquid materials, kilograms per cubic meter or pounds per cubic foot are more commonly encountered
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Gram per Cubic foot — sources
- BIPM SI Brochure — Gram and cubic foot as units combinable to express density, though not a standard industry pairing for general materials.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per quart are in 1 gram per cubic foot?
1 gram per cubic foot equals 0.5157515595 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic foot to grain per quart?
Multiply the gram per cubic foot value by 0.5157515595. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to gram per cubic foot?
Use the reverse factor: 1 grain per quart equals 1.938918034 grams per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cubic foot?
Gram per Cubic foot (g/ft3) measures density. A gram is a small mass unit and a cubic foot a comparatively large volume, so this combination naturally suits low-density materials rather than typical solids or liquids. It is classified as a mixed metric/US customary density unit.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
Is the gram per cubic foot to grain per quart conversion exact?
Yes. Both gram per cubic foot and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.5157515595 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.