Pound per Cubic inch (lb/in3) expresses mass in pound per unit volume in cubic inch, found by dividing a mass value by a volume value.
Pound per Cubic inch to Stone per Cup
Convert pound per cubic inch (lb/in3) to stone per cup (st/cup) instantly with formula, conversion table, and FAQ.
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Convert pound per cubic inch (lb/in3) 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/in3 × 1.03125
Results update instantly for Pound per Cubic inch to Stone per Cup conversions.
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Formula
st/cup = lb/in3 × 1.03125
lb/in3 = st/cup × 0.969697
Conversion table
| 1 lb/in3 | 1.03125 st/cup |
| 5 lb/in3 | 5.15625 st/cup |
| 10 lb/in3 | 10.3125 st/cup |
| 20 lb/in3 | 20.625 st/cup |
| 50 lb/in3 | 51.5625 st/cup |
| 100 lb/in3 | 103.125 st/cup |
| 500 lb/in3 | 515.625 st/cup |
| 1000 lb/in3 | 1031.25 st/cup |
Related conversions
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How the formula works
Both pound per cubic inch 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 inch by 1.03125 to get stone per cup. To reverse the conversion, multiply a stone per cup value by 0.969697 to get back to pound per cubic inch.
Frequently asked questions
What is Pound per Cubic inch (lb/in3)?
Pound per Cubic inch (lb/in3) expresses mass in pound per unit volume in cubic inch, 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 inch to stone per cup?
Multiply the pound per cubic inch value by 1.03125 to get the equivalent in stone per cup. For example, 5 lb/in3 × 1.03125 = 5.15625 st/cup.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 1.03125 is an exact, non-rounded value.
Can I convert stone per cup back to pound per cubic inch?
Yes. Divide the stone per cup value by 1.03125, or multiply it by 0.969697, to get pound per cubic inch.
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About converting pound per cubic inch to stone per cup
Pound per Cubic inch (lb/in3) expresses mass in pound per unit volume in cubic inch, 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 inch 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.