Mass per volume density.
Grams per Fluid ounce to Drams per Cup Converter — g/fl oz to dr/cup
Convert Gram per Fluid ounce (g/fl oz) to Dram per Cup (dr/cup) using the exact conversion factor (1 gram per fluid ounce = 4.51506713 dram per cup). See the formula, worked examples, and conversion table.
Grams per Fluid ounce to Drams per Cup converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 33.8140227 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Fluid ounce to Drams per Cup
Gram per Fluid ounce and Dram per Cup both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
drams per cup = grams per fluid ounce × 4.51506712955
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per fluid ounce equals 33.8140227018 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct gram per fluid ounce-to-dram per cup factor of 4.51506712955.
Simple example
1 g/fl oz × 4.51506713 = 4.51506713 dr/cup
1 gram per fluid ounce = 4.51506713 drams per cup.
Real-world example
1,000 g/fl oz × 4.51506713 = 4,515.06713 dr/cup
1,000 grams per fluid ounce = 4,515.06713 drams per cup.
Conversion table
| Gram per Fluid ounce (g/fl oz) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 g/fl oz | 0.451506713 dr/cup |
| 1 g/fl oz | 4.51506713 dr/cup |
| 10 g/fl oz | 45.1506713 dr/cup |
| 100 g/fl oz | 451.506713 dr/cup |
| 1,000 g/fl oz | 4,515.06713 dr/cup |
| 10,000 g/fl oz | 45,150.6713 dr/cup |
Reverse conversion: Dram per Cup to Gram per Fluid ounce
4.51506713 dr/cup × 0.2214806494 = 1 g/fl oz
4.51506713 drams per cup = 1 grams per fluid ounce.
grams per fluid ounce = drams per cup × 0.221480649414
For a page dedicated to this direction, see Dram per Cup to Gram per Fluid ounce.
Understanding the Gram per Fluid ounce (g/fl oz)
Mass per volume density.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per cup are in 1 gram per fluid ounce?
1 gram per fluid ounce equals 4.51506713 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert gram per fluid ounce to dram per cup?
Multiply the gram per fluid ounce value by 4.51506713. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to gram per fluid ounce?
Use the reverse factor: 1 dram per cup equals 0.2214806494 grams per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per fluid ounce?
Gram per Fluid ounce (g/fl oz) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the gram per fluid ounce to dram per cup conversion exact?
Yes. Both gram per fluid ounce and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 4.51506713 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.