Mass per volume density.
Gram per Cubic inches to Pounds per Imperial gallon Converter — g/in3 to lb/imp gal
Convert Gram per Cubic inch (g/in3) to Pound per Imperial gallon (lb/imp gal) using the exact conversion factor (1 gram per cubic inch = 0.6116051573 pound per imperial gallon). See the formula, worked examples, and conversion table.
Gram per Cubic inches to Pounds 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 61.02374409 / 99.77637266.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gram per Cubic inches to Pounds per Imperial gallon
Gram per Cubic inch and Pound 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
pounds per imperial gallon = gram per cubic inches × 0.611605157273
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cubic inch equals 61.0237440947 base units, and 1 pound per imperial gallon equals 99.7763726631 base units, so dividing one by the other gives the direct gram per cubic inch-to-pound per imperial gallon factor of 0.611605157273.
Simple example
1 g/in3 × 0.6116051573 = 0.6116051573 lb/imp gal
1 gram per cubic inch = 0.6116051573 pounds per imperial gallon.
Real-world example
1,000 g/in3 × 0.6116051573 = 611.6051573 lb/imp gal
1,000 gram per cubic inches = 611.6051573 pounds per imperial gallon.
Conversion table
| Gram per Cubic inch (g/in3) | Pound per Imperial gallon (lb/imp gal) |
|---|---|
| 0.1 g/in3 | 0.0611605157 lb/imp gal |
| 1 g/in3 | 0.6116051573 lb/imp gal |
| 10 g/in3 | 6.116051573 lb/imp gal |
| 100 g/in3 | 61.16051573 lb/imp gal |
| 1,000 g/in3 | 611.6051573 lb/imp gal |
| 10,000 g/in3 | 6,116.051573 lb/imp gal |
Reverse conversion: Pound per Imperial gallon to Gram per Cubic inch
0.6116051573 lb/imp gal × 1.635041805 = 1 g/in3
0.6116051573 pounds per imperial gallon = 1 gram per cubic inches.
gram per cubic inches = pounds per imperial gallon × 1.63504180452
For a page dedicated to this direction, see Pound per Imperial gallon to Gram per Cubic inch.
Understanding the Gram per Cubic inch (g/in3)
Mass per volume density.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per imperial gallon are in 1 gram per cubic inch?
1 gram per cubic inch equals 0.6116051573 pounds per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic inch to pound per imperial gallon?
Multiply the gram per cubic inch value by 0.6116051573. The converter above does this instantly to whatever precision you set.
How do I convert pound per imperial gallon back to gram per cubic inch?
Use the reverse factor: 1 pound per imperial gallon equals 1.635041805 gram per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cubic inch?
Gram per Cubic inch (g/in3) is a unit of density.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
Is the gram per cubic inch to pound per imperial gallon conversion exact?
Yes. Both gram per cubic inch and pound per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.6116051573 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.