Stone per Cubic foot (st/ft3) expresses mass in stone per unit volume in cubic foot, found by dividing a mass value by a volume value.
Stone per Cubic foot to Stone per Cubic yard
Convert stone per cubic foot (st/ft3) to stone per cubic yard (st/yd3) instantly with formula, conversion table, and FAQ.
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Convert stone per cubic foot (st/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 = st/ft3 × 27
Results update instantly for Stone per Cubic foot to Stone per Cubic yard conversions.
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Formula
st/yd3 = st/ft3 × 27
st/ft3 = st/yd3 × 0.037037
Conversion table
| 1 st/ft3 | 27 st/yd3 |
| 5 st/ft3 | 135 st/yd3 |
| 10 st/ft3 | 270 st/yd3 |
| 20 st/ft3 | 540 st/yd3 |
| 50 st/ft3 | 1350 st/yd3 |
| 100 st/ft3 | 2700 st/yd3 |
| 500 st/ft3 | 13500 st/yd3 |
| 1000 st/ft3 | 27000 st/yd3 |
Related conversions
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How the formula works
Both stone 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 stone per cubic foot by 27 to get stone per cubic yard. To reverse the conversion, multiply a stone per cubic yard value by 0.037037 to get back to stone per cubic foot.
Frequently asked questions
What is Stone per Cubic foot (st/ft3)?
Stone per Cubic foot (st/ft3) expresses mass in stone 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 stone per cubic foot to stone per cubic yard?
Multiply the stone per cubic foot value by 27 to get the equivalent in stone per cubic yard. For example, 5 st/ft3 × 27 = 135 st/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 stone per cubic yard back to stone per cubic foot?
Yes. Divide the stone per cubic yard value by 27, or multiply it by 0.037037, to get stone per cubic foot.
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About converting stone per cubic foot to stone per cubic yard
Stone per Cubic foot (st/ft3) expresses mass in stone 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 stone 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.