Ounce per Cubic inch (oz/in3) expresses mass in ounce per unit volume in cubic inch, found by dividing a mass value by a volume value.
Ounce per Cubic inch to Grain per Cup
Convert ounce per cubic inch (oz/in3) to grain per cup (gr/cup) instantly with formula, conversion table, and FAQ.
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Convert ounce per cubic inch (oz/in3) to grain per cup (gr/cup) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Grain per Cup (gr/cup) expresses mass in grain per unit volume in cup, found by dividing a mass value by a volume value.
gr/cup = oz/in3 × 6316.40625
Results update instantly for Ounce per Cubic inch to Grain per Cup conversions.
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Formula
gr/cup = oz/in3 × 6316.40625
oz/in3 = gr/cup × 0.000158
Conversion table
| 1 oz/in3 | 6316.40625 gr/cup |
| 5 oz/in3 | 31582.03125 gr/cup |
| 10 oz/in3 | 63164.0625 gr/cup |
| 20 oz/in3 | 126328.125 gr/cup |
| 50 oz/in3 | 315820.3125 gr/cup |
| 100 oz/in3 | 631640.625 gr/cup |
| 500 oz/in3 | 3.158203e6 gr/cup |
| 1000 oz/in3 | 6.316406e6 gr/cup |
Related conversions
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How the formula works
Both ounce per cubic inch and grain per cup measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in ounce per cubic inch by 6316.40625 to get grain per cup. To reverse the conversion, multiply a grain per cup value by 0.000158 to get back to ounce per cubic inch.
Frequently asked questions
What is Ounce per Cubic inch (oz/in3)?
Ounce per Cubic inch (oz/in3) expresses mass in ounce per unit volume in cubic inch, found by dividing a mass value by a volume value.
What is Grain per Cup (gr/cup)?
Grain per Cup (gr/cup) expresses mass in grain per unit volume in cup, found by dividing a mass value by a volume value.
How do I convert ounce per cubic inch to grain per cup?
Multiply the ounce per cubic inch value by 6316.40625 to get the equivalent in grain per cup. For example, 5 oz/in3 × 6316.40625 = 31582.03125 gr/cup.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 6316.40625 is an exact, non-rounded value.
Can I convert grain per cup back to ounce per cubic inch?
Yes. Divide the grain per cup value by 6316.40625, or multiply it by 0.000158, to get ounce per cubic inch.
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About converting ounce per cubic inch to grain per cup
Ounce per Cubic inch (oz/in3) expresses mass in ounce per unit volume in cubic inch, found by dividing a mass value by a volume value. Grain per Cup (gr/cup) expresses mass in grain per unit volume in cup, found by dividing a mass value by a volume value.
Use this calculator to move between ounce per cubic inch and grain 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.