Pound per Cubic foot (lb/ft3) expresses mass in pound per unit volume in cubic foot, found by dividing a mass value by a volume value.
Pound per Cubic foot to Carat per Cubic inch
Convert pound per cubic foot (lb/ft3) to carat per cubic inch (ct/in3) 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 foot (lb/ft3) to carat per cubic inch (ct/in3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value.
ct/in3 = lb/ft3 × 1.312478
Results update instantly for Pound per Cubic foot to Carat per Cubic inch conversions.
Reserved above the conversion cards and below the converter.
Formula
ct/in3 = lb/ft3 × 1.312478
lb/ft3 = ct/in3 × 0.761918
Conversion table
| 1 lb/ft3 | 1.312478 ct/in3 |
| 5 lb/ft3 | 6.56239 ct/in3 |
| 10 lb/ft3 | 13.124779 ct/in3 |
| 20 lb/ft3 | 26.249558 ct/in3 |
| 50 lb/ft3 | 65.623896 ct/in3 |
| 100 lb/ft3 | 131.247792 ct/in3 |
| 500 lb/ft3 | 656.238961 ct/in3 |
| 1000 lb/ft3 | 1312.477922 ct/in3 |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both pound per cubic foot and carat 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 cubic foot by 1.312478 to get carat per cubic inch. To reverse the conversion, multiply a carat per cubic inch value by 0.761918 to get back to pound per cubic foot.
Frequently asked questions
What is Pound per Cubic foot (lb/ft3)?
Pound per Cubic foot (lb/ft3) expresses mass in pound per unit volume in cubic foot, found by dividing a mass value by a volume value.
What is Carat per Cubic inch (ct/in3)?
Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value.
How do I convert pound per cubic foot to carat per cubic inch?
Multiply the pound per cubic foot value by 1.312478 to get the equivalent in carat per cubic inch. For example, 5 lb/ft3 × 1.312478 = 6.56239 ct/in3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 1.312478 is an exact, non-rounded value.
Can I convert carat per cubic inch back to pound per cubic foot?
Yes. Divide the carat per cubic inch value by 1.312478, or multiply it by 0.761918, to get pound per cubic foot.
Reserved between the FAQ and the article so the page stays balanced.
About converting pound per cubic foot to carat per cubic inch
Pound per Cubic foot (lb/ft3) expresses mass in pound per unit volume in cubic foot, found by dividing a mass value by a volume value. Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value.
Use this calculator to move between pound per cubic foot and carat 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.