Mass per volume density.
Grains per Gallon to Troy ounces per Imperial gallon Converter — gr/gal to oz t/imp gal
Convert Grain per Gallon (gr/gal) to Troy ounce per Imperial gallon (oz t/imp gal) using the exact conversion factor (1 grain per gallon = 0.002501979 troy ounce per imperial gallon). See the formula, worked examples, and conversion table.
Grains per Gallon to Troy ounces per Imperial 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 0.01711806105 / 6.841808411.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Gallon to Troy ounces per Imperial gallon
Grain per Gallon and Troy ounce per Imperial 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
troy ounces per imperial gallon = grains per gallon × 0.00250197901147
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per gallon equals 0.0171180610453 base units, and 1 troy ounce per imperial gallon equals 6.84180841118 base units, so dividing one by the other gives the direct grain per gallon-to-troy ounce per imperial gallon factor of 0.00250197901147.
Simple example
1 gr/gal × 0.002501979011 = 0.002501979 oz t/imp gal
1 grain per gallon = 0.002501979 troy ounces per imperial gallon.
Real-world example
1,000 gr/gal × 0.002501979011 = 2.501979011 oz t/imp gal
1,000 grains per gallon = 2.501979011 troy ounces per imperial gallon.
Conversion table
| Grain per Gallon (gr/gal) | Troy ounce per Imperial gallon (oz t/imp gal) |
|---|---|
| 0.1 gr/gal | 0.0002501979 oz t/imp gal |
| 1 gr/gal | 0.002501979 oz t/imp gal |
| 10 gr/gal | 0.0250197901 oz t/imp gal |
| 100 gr/gal | 0.2501979011 oz t/imp gal |
| 1,000 gr/gal | 2.501979011 oz t/imp gal |
| 10,000 gr/gal | 25.01979011 oz t/imp gal |
Reverse conversion: Troy ounce per Imperial gallon to Grain per Gallon
0.002501979 oz t/imp gal × 399.6836086 = 0.9999999954 gr/gal
0.002501979 troy ounces per imperial gallon = 0.9999999954 grains per gallon.
grains per gallon = troy ounces per imperial gallon × 399.683608622
For a page dedicated to this direction, see Troy ounce per Imperial gallon to Grain per Gallon.
Understanding the Grain per Gallon (gr/gal)
Mass per volume density.
Understanding the Troy ounce per Imperial gallon (oz t/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many troy ounces per imperial gallon are in 1 grain per gallon?
1 grain per gallon equals 0.002501979 troy ounces per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per gallon to troy ounce per imperial gallon?
Multiply the grain per gallon value by 0.002501979011. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce per imperial gallon back to grain per gallon?
Use the reverse factor: 1 troy ounce per imperial gallon equals 399.6836086 grains per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
What is a troy ounce per imperial gallon?
Troy ounce per Imperial gallon (oz t/imp gal) is a unit of density.
Is the grain per gallon to troy ounce per imperial gallon conversion exact?
Yes. Both grain per gallon and troy ounce per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.002501979011 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.