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 Slug per Gallon
Convert pound per imperial gallon (lb/imp gal) to slug per gallon (slug/gal) instantly with formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Density calculator
Density Converter
Convert pound per imperial gallon (lb/imp gal) to slug per gallon (slug/gal) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Slug per Gallon (slug/gal) expresses mass in slug per unit volume in gallon, found by dividing a mass value by a volume value.
slug/gal = lb/imp gal × 0.02588
Results update instantly for Pound per Imperial gallon to Slug per Gallon conversions.
Reserved above the conversion cards and below the converter.
Formula
slug/gal = lb/imp gal × 0.02588
lb/imp gal = slug/gal × 38.639421
Conversion table
| 1 lb/imp gal | 0.02588 slug/gal |
| 5 lb/imp gal | 0.129402 slug/gal |
| 10 lb/imp gal | 0.258803 slug/gal |
| 20 lb/imp gal | 0.517606 slug/gal |
| 50 lb/imp gal | 1.294015 slug/gal |
| 100 lb/imp gal | 2.58803 slug/gal |
| 500 lb/imp gal | 12.940152 slug/gal |
| 1000 lb/imp gal | 25.880305 slug/gal |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both pound per imperial gallon and slug per gallon 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 0.02588 to get slug per gallon. To reverse the conversion, multiply a slug per gallon value by 38.639421 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 Slug per Gallon (slug/gal)?
Slug per Gallon (slug/gal) expresses mass in slug per unit volume in gallon, found by dividing a mass value by a volume value.
How do I convert pound per imperial gallon to slug per gallon?
Multiply the pound per imperial gallon value by 0.02588 to get the equivalent in slug per gallon. For example, 5 lb/imp gal × 0.02588 = 0.129402 slug/gal.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 0.02588 is an exact, non-rounded value.
Can I convert slug per gallon back to pound per imperial gallon?
Yes. Divide the slug per gallon value by 0.02588, or multiply it by 38.639421, to get pound per imperial gallon.
Reserved between the FAQ and the article so the page stays balanced.
About converting pound per imperial gallon to slug per gallon
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. Slug per Gallon (slug/gal) expresses mass in slug per unit volume in gallon, found by dividing a mass value by a volume value.
Use this calculator to move between pound per imperial gallon and slug per gallon accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.