Ounce per Fluid ounce (oz/fl oz) expresses mass in ounce per unit volume in fluid ounce, found by dividing a mass value by a volume value.
Ounce per Fluid ounce to Dram per Cup
Convert ounce per fluid ounce (oz/fl oz) to dram per cup (dr/cup) instantly with formula, conversion table, and FAQ.
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Convert ounce per fluid ounce (oz/fl oz) to dram per cup (dr/cup) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Dram per Cup (dr/cup) expresses mass in dram per unit volume in cup, found by dividing a mass value by a volume value.
dr/cup = oz/fl oz × 128
Results update instantly for Ounce per Fluid ounce to Dram per Cup conversions.
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Formula
dr/cup = oz/fl oz × 128
oz/fl oz = dr/cup × 0.007812
Conversion table
| 1 oz/fl oz | 128 dr/cup |
| 5 oz/fl oz | 640 dr/cup |
| 10 oz/fl oz | 1280 dr/cup |
| 20 oz/fl oz | 2560 dr/cup |
| 50 oz/fl oz | 6400 dr/cup |
| 100 oz/fl oz | 12800 dr/cup |
| 500 oz/fl oz | 64000 dr/cup |
| 1000 oz/fl oz | 128000 dr/cup |
Related conversions
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How the formula works
Both ounce per fluid ounce and dram 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 fluid ounce by 128 to get dram per cup. To reverse the conversion, multiply a dram per cup value by 0.007812 to get back to ounce per fluid ounce.
Frequently asked questions
What is Ounce per Fluid ounce (oz/fl oz)?
Ounce per Fluid ounce (oz/fl oz) expresses mass in ounce per unit volume in fluid ounce, found by dividing a mass value by a volume value.
What is Dram per Cup (dr/cup)?
Dram per Cup (dr/cup) expresses mass in dram per unit volume in cup, found by dividing a mass value by a volume value.
How do I convert ounce per fluid ounce to dram per cup?
Multiply the ounce per fluid ounce value by 128 to get the equivalent in dram per cup. For example, 5 oz/fl oz × 128 = 640 dr/cup.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 128 is an exact, non-rounded value.
Can I convert dram per cup back to ounce per fluid ounce?
Yes. Divide the dram per cup value by 128, or multiply it by 0.007812, to get ounce per fluid ounce.
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About converting ounce per fluid ounce to dram per cup
Ounce per Fluid ounce (oz/fl oz) expresses mass in ounce per unit volume in fluid ounce, found by dividing a mass value by a volume value. Dram per Cup (dr/cup) expresses mass in dram per unit volume in cup, found by dividing a mass value by a volume value.
Use this calculator to move between ounce per fluid ounce and dram 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.