Mass per volume density.
Grams per Imperial gallon to Long tons per Cup Converter — g/imp gal to long ton/cup
Convert Gram per Imperial gallon (g/imp gal) to Long ton per Cup (long ton/cup) using the exact conversion factor (1 gram per imperial gallon = 5.122021e-8 long ton per cup). See the formula, worked examples, and conversion table.
Grams per Imperial gallon to Long tons per Cup 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 0.2199692483 / 4.29457916e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Imperial gallon to Long tons per Cup
Gram per Imperial gallon and Long ton per Cup 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
long tons per cup = grams per imperial gallon × 5.122021e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per imperial gallon equals 0.219969248299 base units, and 1 long ton per cup equals 4294579.15504 base units, so dividing one by the other gives the direct gram per imperial gallon-to-long ton per cup factor of 5.122021e-8.
Simple example
1 g/imp gal × 5.122021e-8 = 5.122021e-8 long ton/cup
1 gram per imperial gallon = 5.122021e-8 long tons per cup.
Real-world example
1,000 g/imp gal × 5.122021e-8 = 0.0000512202 long ton/cup
1,000 grams per imperial gallon = 0.0000512202 long tons per cup.
Conversion table
| Gram per Imperial gallon (g/imp gal) | Long ton per Cup (long ton/cup) |
|---|---|
| 0.1 g/imp gal | 5.122021e-9 long ton/cup |
| 1 g/imp gal | 5.122021e-8 long ton/cup |
| 10 g/imp gal | 5.122021e-7 long ton/cup |
| 100 g/imp gal | 0.000005122 long ton/cup |
| 1,000 g/imp gal | 0.0000512202 long ton/cup |
| 10,000 g/imp gal | 0.0005122021 long ton/cup |
Reverse conversion: Long ton per Cup to Gram per Imperial gallon
5.122021e-8 long ton/cup × 19523543.35 = 0.9999999904 g/imp gal
5.122021e-8 long tons per cup = 0.9999999904 grams per imperial gallon.
grams per imperial gallon = long tons per cup × 19523543.3509
For a page dedicated to this direction, see Long ton per Cup to Gram per Imperial gallon.
Understanding the Gram per Imperial gallon (g/imp gal)
Mass per volume density.
Understanding the Long ton per Cup (long ton/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons per cup are in 1 gram per imperial gallon?
1 gram per imperial gallon equals 5.122021e-8 long tons per cup, using the exact defined conversion factor rather than an estimate.
How do I convert gram per imperial gallon to long ton per cup?
Multiply the gram per imperial gallon value by 5.122021e-8. The converter above does this instantly to whatever precision you set.
How do I convert long ton per cup back to gram per imperial gallon?
Use the reverse factor: 1 long ton per cup equals 19,523,543.35 grams per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per imperial gallon?
Gram per Imperial gallon (g/imp gal) is a unit of density.
What is a long ton per cup?
Long ton per Cup (long ton/cup) is a unit of density.
Is the gram per imperial gallon to long ton per cup conversion exact?
Yes. Both gram per imperial gallon and long ton per cup are defined by fixed standards rather than physical artifacts, so the factor of 5.122021e-8 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.