Pound per Cup (lb/cup) expresses mass in pound per unit volume in cup, found by dividing a mass value by a volume value.
Pound per Cup to Gram per Cubic inch
Convert pound per cup (lb/cup) to gram per cubic inch (g/in3) instantly with formula, conversion table, and FAQ.
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Convert pound per cup (lb/cup) 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/cup × 31.417653
Results update instantly for Pound per Cup to Gram per Cubic inch conversions.
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Formula
g/in3 = lb/cup × 31.417653
lb/cup = g/in3 × 0.031829
Conversion table
| 1 lb/cup | 31.417653 g/in3 |
| 5 lb/cup | 157.088267 g/in3 |
| 10 lb/cup | 314.176533 g/in3 |
| 20 lb/cup | 628.353067 g/in3 |
| 50 lb/cup | 1570.882667 g/in3 |
| 100 lb/cup | 3141.765333 g/in3 |
| 500 lb/cup | 15708.826667 g/in3 |
| 1000 lb/cup | 31417.653333 g/in3 |
Related conversions
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How the formula works
Both pound per cup 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 cup by 31.417653 to get gram per cubic inch. To reverse the conversion, multiply a gram per cubic inch value by 0.031829 to get back to pound per cup.
Frequently asked questions
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.
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 cup to gram per cubic inch?
Multiply the pound per cup value by 31.417653 to get the equivalent in gram per cubic inch. For example, 5 lb/cup × 31.417653 = 157.088267 g/in3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 31.417653 is an exact, non-rounded value.
Can I convert gram per cubic inch back to pound per cup?
Yes. Divide the gram per cubic inch value by 31.417653, or multiply it by 0.031829, to get pound per cup.
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About converting pound per cup to gram per cubic inch
Pound per Cup (lb/cup) expresses mass in pound per unit volume in cup, 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 cup 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.