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 Stone per Cubic yard
Convert pound per cubic foot (lb/ft3) to stone per cubic yard (st/yd3) instantly with formula, conversion table, and FAQ.
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Convert pound per cubic foot (lb/ft3) to stone per cubic yard (st/yd3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Stone per Cubic yard (st/yd3) expresses mass in stone per unit volume in cubic yard, found by dividing a mass value by a volume value.
st/yd3 = lb/ft3 × 1.928571
Results update instantly for Pound per Cubic foot to Stone per Cubic yard conversions.
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Formula
st/yd3 = lb/ft3 × 1.928571
lb/ft3 = st/yd3 × 0.518519
Conversion table
| 1 lb/ft3 | 1.928571 st/yd3 |
| 5 lb/ft3 | 9.642857 st/yd3 |
| 10 lb/ft3 | 19.285714 st/yd3 |
| 20 lb/ft3 | 38.571429 st/yd3 |
| 50 lb/ft3 | 96.428571 st/yd3 |
| 100 lb/ft3 | 192.857143 st/yd3 |
| 500 lb/ft3 | 964.285714 st/yd3 |
| 1000 lb/ft3 | 1928.571429 st/yd3 |
Related conversions
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How the formula works
Both pound per cubic foot and stone 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 1.928571 to get stone per cubic yard. To reverse the conversion, multiply a stone per cubic yard value by 0.518519 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 Stone per Cubic yard (st/yd3)?
Stone per Cubic yard (st/yd3) expresses mass in stone 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 stone per cubic yard?
Multiply the pound per cubic foot value by 1.928571 to get the equivalent in stone per cubic yard. For example, 5 lb/ft3 × 1.928571 = 9.642857 st/yd3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 1.928571 is an exact, non-rounded value.
Can I convert stone per cubic yard back to pound per cubic foot?
Yes. Divide the stone per cubic yard value by 1.928571, or multiply it by 0.518519, to get pound per cubic foot.
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About converting pound per cubic foot to stone 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. Stone per Cubic yard (st/yd3) expresses mass in stone 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 stone 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.