Mass per volume density.
Troy ounces per Quart to Grains per Fluid ounce Converter — oz t/qt to gr/fl oz
Convert Troy ounce per Quart (oz t/qt) to Grain per Fluid ounce (gr/fl oz) using the exact conversion factor (1 troy ounce per quart = 15 grain per fluid ounce). See the formula, worked examples, and conversion table.
Troy ounces per Quart to Grains per Fluid ounce 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 32.86667721 / 2.191111814.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces per Quart to Grains per Fluid ounce
Troy ounce per Quart and Grain per Fluid ounce 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 fluid ounce = troy ounces per quart × 15
This factor comes from each unit's defined relationship to the category's base unit: 1 troy ounce per quart equals 32.8666772069 base units, and 1 grain per fluid ounce equals 2.19111181379 base units, so dividing one by the other gives the direct troy ounce per quart-to-grain per fluid ounce factor of 15.
Simple example
1 oz t/qt × 15 = 15 gr/fl oz
1 troy ounce per quart = 15 grains per fluid ounce.
Real-world example
1,000 oz t/qt × 15 = 15,000 gr/fl oz
1,000 troy ounces per quart = 15,000 grains per fluid ounce.
Conversion table
| Troy ounce per Quart (oz t/qt) | Grain per Fluid ounce (gr/fl oz) |
|---|---|
| 0.1 oz t/qt | 1.5 gr/fl oz |
| 1 oz t/qt | 15 gr/fl oz |
| 10 oz t/qt | 150 gr/fl oz |
| 100 oz t/qt | 1,500 gr/fl oz |
| 1,000 oz t/qt | 15,000 gr/fl oz |
| 10,000 oz t/qt | 150,000 gr/fl oz |
Reverse conversion: Grain per Fluid ounce to Troy ounce per Quart
15 gr/fl oz × 0.06666666667 = 1 oz t/qt
15 grains per fluid ounce = 1 troy ounce per quart.
troy ounces per quart = grains per fluid ounce × 0.0666666666667
For a page dedicated to this direction, see Grain per Fluid ounce to Troy ounce per Quart.
Understanding the Troy ounce per Quart (oz t/qt)
Mass per volume density.
Understanding the Grain per Fluid ounce (gr/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per fluid ounce are in 1 troy ounce per quart?
1 troy ounce per quart equals 15 grains per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce per quart to grain per fluid ounce?
Multiply the troy ounce per quart value by 15. The converter above does this instantly to whatever precision you set.
How do I convert grain per fluid ounce back to troy ounce per quart?
Use the reverse factor: 1 grain per fluid ounce equals 0.0666666667 troy ounces per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a troy ounce per quart?
Troy ounce per Quart (oz t/qt) is a unit of density.
What is a grain per fluid ounce?
Grain per Fluid ounce (gr/fl oz) is a unit of density.
Is the troy ounce per quart to grain per fluid ounce conversion exact?
Yes. Both troy ounce per quart and grain per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 15 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.