Gram per Gallon (g/gal) expresses mass in gram per unit volume in gallon, found by dividing a mass value by a volume value.
Gram per Gallon to Pound per Cup
Convert gram per gallon (g/gal) to pound per cup (lb/cup) instantly with formula, conversion table, and FAQ.
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Convert gram per gallon (g/gal) to pound per cup (lb/cup) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Pound per Cup (lb/cup) expresses mass in pound per unit volume in cup, found by dividing a mass value by a volume value.
lb/cup = g/gal × 0.000138
Results update instantly for Gram per Gallon to Pound per Cup conversions.
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Formula
lb/cup = g/gal × 0.000138
g/gal = lb/cup × 7257.47792
Conversion table
| 1 g/gal | 0.000138 lb/cup |
| 5 g/gal | 0.000689 lb/cup |
| 10 g/gal | 0.001378 lb/cup |
| 20 g/gal | 0.002756 lb/cup |
| 50 g/gal | 0.006889 lb/cup |
| 100 g/gal | 0.013779 lb/cup |
| 500 g/gal | 0.068894 lb/cup |
| 1000 g/gal | 0.137789 lb/cup |
Related conversions
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How the formula works
Both gram per gallon and pound per cup measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in gram per gallon by 0.000138 to get pound per cup. To reverse the conversion, multiply a pound per cup value by 7257.47792 to get back to gram per gallon.
Frequently asked questions
What is Gram per Gallon (g/gal)?
Gram per Gallon (g/gal) expresses mass in gram per unit volume in gallon, found by dividing a mass value by a volume value.
What is Pound per Cup (lb/cup)?
Pound per Cup (lb/cup) expresses mass in pound per unit volume in cup, found by dividing a mass value by a volume value.
How do I convert gram per gallon to pound per cup?
Multiply the gram per gallon value by 0.000138 to get the equivalent in pound per cup. For example, 5 g/gal × 0.000138 = 0.000689 lb/cup.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 0.000138 is an exact, non-rounded value.
Can I convert pound per cup back to gram per gallon?
Yes. Divide the pound per cup value by 0.000138, or multiply it by 7257.47792, to get gram per gallon.
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About converting gram per gallon to pound per cup
Gram per Gallon (g/gal) expresses mass in gram per unit volume in gallon, found by dividing a mass value by a volume value. Pound per Cup (lb/cup) expresses mass in pound per unit volume in cup, found by dividing a mass value by a volume value.
Use this calculator to move between gram per gallon and pound per cup accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.