Pound per Cubic inch (lb/in3) expresses mass in pound per unit volume in cubic inch, found by dividing a mass value by a volume value.
Pound per Cubic inch to Ounce per Cup
Convert pound per cubic inch (lb/in3) to ounce per cup (oz/cup) 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 cubic inch (lb/in3) to ounce per cup (oz/cup) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Ounce per Cup (oz/cup) expresses mass in ounce per unit volume in cup, found by dividing a mass value by a volume value.
oz/cup = lb/in3 × 231
Results update instantly for Pound per Cubic inch to Ounce per Cup conversions.
Reserved above the conversion cards and below the converter.
Formula
oz/cup = lb/in3 × 231
lb/in3 = oz/cup × 0.004329
Conversion table
| 1 lb/in3 | 231 oz/cup |
| 5 lb/in3 | 1155 oz/cup |
| 10 lb/in3 | 2310 oz/cup |
| 20 lb/in3 | 4620 oz/cup |
| 50 lb/in3 | 11550 oz/cup |
| 100 lb/in3 | 23100 oz/cup |
| 500 lb/in3 | 115500 oz/cup |
| 1000 lb/in3 | 231000 oz/cup |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both pound per cubic inch and ounce per cup measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in pound per cubic inch by 231 to get ounce per cup. To reverse the conversion, multiply a ounce per cup value by 0.004329 to get back to pound per cubic inch.
Frequently asked questions
What is Pound per Cubic inch (lb/in3)?
Pound per Cubic inch (lb/in3) expresses mass in pound per unit volume in cubic inch, found by dividing a mass value by a volume value.
What is Ounce per Cup (oz/cup)?
Ounce per Cup (oz/cup) expresses mass in ounce per unit volume in cup, found by dividing a mass value by a volume value.
How do I convert pound per cubic inch to ounce per cup?
Multiply the pound per cubic inch value by 231 to get the equivalent in ounce per cup. For example, 5 lb/in3 × 231 = 1155 oz/cup.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 231 is an exact, non-rounded value.
Can I convert ounce per cup back to pound per cubic inch?
Yes. Divide the ounce per cup value by 231, or multiply it by 0.004329, to get pound per cubic inch.
Reserved between the FAQ and the article so the page stays balanced.
About converting pound per cubic inch to ounce per cup
Pound per Cubic inch (lb/in3) expresses mass in pound per unit volume in cubic inch, found by dividing a mass value by a volume value. Ounce per Cup (oz/cup) expresses mass in ounce per unit volume in cup, found by dividing a mass value by a volume value.
Use this calculator to move between pound per cubic inch and ounce 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.