Pound per Imperial gallon (lb/imp gal) expresses mass in pound per unit volume in imperial gallon, found by dividing a mass value by a volume value.
Pound per Imperial gallon to Gram per Cubic inch
Convert pound per imperial gallon (lb/imp gal) to gram per cubic inch (g/in3) instantly with formula, conversion table, and FAQ.
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Convert pound per imperial gallon (lb/imp gal) to gram per cubic inch (g/in3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Gram per Cubic inch (g/in3) expresses mass in gram per unit volume in cubic inch, found by dividing a mass value by a volume value.
g/in3 = lb/imp gal × 1.635042
Results update instantly for Pound per Imperial gallon to Gram per Cubic inch conversions.
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Formula
g/in3 = lb/imp gal × 1.635042
lb/imp gal = g/in3 × 0.611605
Conversion table
| 1 lb/imp gal | 1.635042 g/in3 |
| 5 lb/imp gal | 8.175209 g/in3 |
| 10 lb/imp gal | 16.350418 g/in3 |
| 20 lb/imp gal | 32.700836 g/in3 |
| 50 lb/imp gal | 81.75209 g/in3 |
| 100 lb/imp gal | 163.50418 g/in3 |
| 500 lb/imp gal | 817.520902 g/in3 |
| 1000 lb/imp gal | 1635.041805 g/in3 |
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How the formula works
Both pound per imperial gallon and gram per cubic inch measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in pound per imperial gallon by 1.635042 to get gram per cubic inch. To reverse the conversion, multiply a gram per cubic inch value by 0.611605 to get back to pound per imperial gallon.
Frequently asked questions
What is Pound per Imperial gallon (lb/imp gal)?
Pound per Imperial gallon (lb/imp gal) expresses mass in pound per unit volume in imperial gallon, found by dividing a mass value by a volume value.
What is Gram per Cubic inch (g/in3)?
Gram per Cubic inch (g/in3) expresses mass in gram per unit volume in cubic inch, found by dividing a mass value by a volume value.
How do I convert pound per imperial gallon to gram per cubic inch?
Multiply the pound per imperial gallon value by 1.635042 to get the equivalent in gram per cubic inch. For example, 5 lb/imp gal × 1.635042 = 8.175209 g/in3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 1.635042 is an exact, non-rounded value.
Can I convert gram per cubic inch back to pound per imperial gallon?
Yes. Divide the gram per cubic inch value by 1.635042, or multiply it by 0.611605, to get pound per imperial gallon.
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About converting pound per imperial gallon to gram per cubic inch
Pound per Imperial gallon (lb/imp gal) expresses mass in pound per unit volume in imperial gallon, found by dividing a mass value by a volume value. Gram per Cubic inch (g/in3) expresses mass in gram per unit volume in cubic inch, found by dividing a mass value by a volume value.
Use this calculator to move between pound per imperial gallon and gram per cubic inch accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.