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.
Pound per Cubic yard to Stone per Cup
Convert pound per cubic yard (lb/yd3) to stone per cup (st/cup) instantly with formula, conversion table, and FAQ.
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Convert pound per cubic yard (lb/yd3) to stone per cup (st/cup) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Stone per Cup (st/cup) expresses mass in stone per unit volume in cup, found by dividing a mass value by a volume value.
st/cup = lb/yd3 × 2.210327e-5
Results update instantly for Pound per Cubic yard to Stone per Cup conversions.
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Formula
st/cup = lb/yd3 × 2.210327e-5
lb/yd3 = st/cup × 45242.181818
Conversion table
| 1 lb/yd3 | 2.210327e-5 st/cup |
| 5 lb/yd3 | 0.000111 st/cup |
| 10 lb/yd3 | 0.000221 st/cup |
| 20 lb/yd3 | 0.000442 st/cup |
| 50 lb/yd3 | 0.001105 st/cup |
| 100 lb/yd3 | 0.00221 st/cup |
| 500 lb/yd3 | 0.011052 st/cup |
| 1000 lb/yd3 | 0.022103 st/cup |
Related conversions
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How the formula works
Both pound per cubic yard and stone 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 yard by 2.210327e-5 to get stone per cup. To reverse the conversion, multiply a stone per cup value by 45242.181818 to get back to pound per cubic yard.
Frequently asked questions
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.
What is Stone per Cup (st/cup)?
Stone per Cup (st/cup) expresses mass in stone per unit volume in cup, found by dividing a mass value by a volume value.
How do I convert pound per cubic yard to stone per cup?
Multiply the pound per cubic yard value by 2.210327e-5 to get the equivalent in stone per cup. For example, 5 lb/yd3 × 2.210327e-5 = 0.000111 st/cup.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 2.210327e-5 is an exact, non-rounded value.
Can I convert stone per cup back to pound per cubic yard?
Yes. Divide the stone per cup value by 2.210327e-5, or multiply it by 45242.181818, to get pound per cubic yard.
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About converting pound per cubic yard to stone per cup
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. Stone per Cup (st/cup) expresses mass in stone per unit volume in cup, found by dividing a mass value by a volume value.
Use this calculator to move between pound per cubic yard and stone 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.