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 Pound per Cubic yard
Convert pound per cubic foot (lb/ft3) to pound per cubic yard (lb/yd3) instantly with formula, conversion table, and FAQ.
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Convert pound per cubic foot (lb/ft3) to pound per cubic yard (lb/yd3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Pound per Cubic yard (lb/yd3) expresses mass in pound per unit volume in cubic yard, found by dividing a mass value by a volume value.
lb/yd3 = lb/ft3 × 27
Results update instantly for Pound per Cubic foot to Pound per Cubic yard conversions.
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Formula
lb/yd3 = lb/ft3 × 27
lb/ft3 = lb/yd3 × 0.037037
Conversion table
| 1 lb/ft3 | 27 lb/yd3 |
| 5 lb/ft3 | 135 lb/yd3 |
| 10 lb/ft3 | 270 lb/yd3 |
| 20 lb/ft3 | 540 lb/yd3 |
| 50 lb/ft3 | 1350 lb/yd3 |
| 100 lb/ft3 | 2700 lb/yd3 |
| 500 lb/ft3 | 13500 lb/yd3 |
| 1000 lb/ft3 | 27000 lb/yd3 |
Related conversions
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How the formula works
Both pound per cubic foot and pound per cubic yard 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 27 to get pound per cubic yard. To reverse the conversion, multiply a pound per cubic yard value by 0.037037 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 Pound per Cubic yard (lb/yd3)?
Pound per Cubic yard (lb/yd3) expresses mass in pound per unit volume in cubic yard, found by dividing a mass value by a volume value.
How do I convert pound per cubic foot to pound per cubic yard?
Multiply the pound per cubic foot value by 27 to get the equivalent in pound per cubic yard. For example, 5 lb/ft3 × 27 = 135 lb/yd3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 27 is an exact, non-rounded value.
Can I convert pound per cubic yard back to pound per cubic foot?
Yes. Divide the pound per cubic yard value by 27, or multiply it by 0.037037, to get pound per cubic foot.
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About converting pound per cubic foot to pound per cubic yard
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 yard (lb/yd3) expresses mass in pound per unit volume in cubic yard, found by dividing a mass value by a volume value.
Use this calculator to move between pound per cubic foot and pound per cubic yard accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.