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 Kilogram per Cubic inch
Convert pound per cup (lb/cup) to kilogram per cubic inch (kg/in3) instantly with formula, conversion table, and FAQ.
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Convert pound per cup (lb/cup) to kilogram per cubic inch (kg/in3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Kilogram per Cubic inch (kg/in3) expresses mass in kilogram per unit volume in cubic inch, found by dividing a mass value by a volume value.
kg/in3 = lb/cup × 0.031418
Results update instantly for Pound per Cup to Kilogram per Cubic inch conversions.
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Formula
kg/in3 = lb/cup × 0.031418
lb/cup = kg/in3 × 31.829239
Conversion table
| 1 lb/cup | 0.031418 kg/in3 |
| 5 lb/cup | 0.157088 kg/in3 |
| 10 lb/cup | 0.314177 kg/in3 |
| 20 lb/cup | 0.628353 kg/in3 |
| 50 lb/cup | 1.570883 kg/in3 |
| 100 lb/cup | 3.141765 kg/in3 |
| 500 lb/cup | 15.708827 kg/in3 |
| 1000 lb/cup | 31.417653 kg/in3 |
Related conversions
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How the formula works
Both pound per cup and kilogram 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 0.031418 to get kilogram per cubic inch. To reverse the conversion, multiply a kilogram per cubic inch value by 31.829239 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 Kilogram per Cubic inch (kg/in3)?
Kilogram per Cubic inch (kg/in3) expresses mass in kilogram per unit volume in cubic inch, found by dividing a mass value by a volume value.
How do I convert pound per cup to kilogram per cubic inch?
Multiply the pound per cup value by 0.031418 to get the equivalent in kilogram per cubic inch. For example, 5 lb/cup × 0.031418 = 0.157088 kg/in3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 0.031418 is an exact, non-rounded value.
Can I convert kilogram per cubic inch back to pound per cup?
Yes. Divide the kilogram per cubic inch value by 0.031418, or multiply it by 31.829239, to get pound per cup.
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About converting pound per cup to kilogram 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. Kilogram per Cubic inch (kg/in3) expresses mass in kilogram 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 kilogram 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.