Pound per Cup (lb/cup) expresses mass in pound per unit volume in cup, found by dividing a mass value by a volume value.
Pound per Cup to Dram per Cup
Convert pound per cup (lb/cup) to dram per cup (dr/cup) instantly with formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Density calculator
Density Converter
Convert pound per cup (lb/cup) 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 = lb/cup × 256
Results update instantly for Pound per Cup to Dram per Cup conversions.
Reserved above the conversion cards and below the converter.
Formula
dr/cup = lb/cup × 256
lb/cup = dr/cup × 0.003906
Conversion table
| 1 lb/cup | 256 dr/cup |
| 5 lb/cup | 1280 dr/cup |
| 10 lb/cup | 2560 dr/cup |
| 20 lb/cup | 5120 dr/cup |
| 50 lb/cup | 12800 dr/cup |
| 100 lb/cup | 25600 dr/cup |
| 500 lb/cup | 128000 dr/cup |
| 1000 lb/cup | 256000 dr/cup |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both pound per cup 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 pound per cup by 256 to get dram per cup. To reverse the conversion, multiply a dram per cup value by 0.003906 to get back to pound per cup.
Frequently asked questions
What is Pound per Cup (lb/cup)?
Pound per Cup (lb/cup) expresses mass in pound per unit volume in cup, 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 pound per cup to dram per cup?
Multiply the pound per cup value by 256 to get the equivalent in dram per cup. For example, 5 lb/cup × 256 = 1280 dr/cup.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 256 is an exact, non-rounded value.
Can I convert dram per cup back to pound per cup?
Yes. Divide the dram per cup value by 256, or multiply it by 0.003906, to get pound per cup.
Reserved between the FAQ and the article so the page stays balanced.
About converting pound per cup to dram per cup
Pound per Cup (lb/cup) expresses mass in pound per unit volume in cup, 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 pound per cup 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.