Mass per volume density.
Troy ounces per Fluid ounce to Drams per Cup Converter — oz t/fl oz to dr/cup
Convert Troy ounce per Fluid ounce (oz t/fl oz) to Dram per Cup (dr/cup) using the exact conversion factor (1 troy ounce per fluid ounce = 140.4342857 dram per cup). See the formula, worked examples, and conversion table.
Troy ounces 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 1051.733671 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces per Fluid ounce to Drams per Cup
Troy ounce 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 = troy ounces per fluid ounce × 140.434285714
This factor comes from each unit's defined relationship to the category's base unit: 1 troy ounce per fluid ounce equals 1051.73367062 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct troy ounce per fluid ounce-to-dram per cup factor of 140.434285714.
Simple example
1 oz t/fl oz × 140.4342857 = 140.4342857 dr/cup
1 troy ounce per fluid ounce = 140.4342857 drams per cup.
Real-world example
1,000 oz t/fl oz × 140.4342857 = 140,434.2857 dr/cup
1,000 troy ounces per fluid ounce = 140,434.2857 drams per cup.
Conversion table
| Troy ounce per Fluid ounce (oz t/fl oz) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 oz t/fl oz | 14.04342857 dr/cup |
| 1 oz t/fl oz | 140.4342857 dr/cup |
| 10 oz t/fl oz | 1,404.342857 dr/cup |
| 100 oz t/fl oz | 14,043.42857 dr/cup |
| 1,000 oz t/fl oz | 140,434.2857 dr/cup |
| 10,000 oz t/fl oz | 1,404,342.857 dr/cup |
Reverse conversion: Dram per Cup to Troy ounce per Fluid ounce
140.4342857 dr/cup × 0.007120768229 = 0.9999999999 oz t/fl oz
140.4342857 drams per cup = 0.9999999999 troy ounces per fluid ounce.
troy ounces per fluid ounce = drams per cup × 0.00712076822917
For a page dedicated to this direction, see Dram per Cup to Troy ounce per Fluid ounce.
Understanding the Troy ounce per Fluid ounce (oz t/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 troy ounce per fluid ounce?
1 troy ounce per fluid ounce equals 140.4342857 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce per fluid ounce to dram per cup?
Multiply the troy ounce per fluid ounce value by 140.4342857. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to troy ounce per fluid ounce?
Use the reverse factor: 1 dram per cup equals 0.0071207682 troy ounces per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a troy ounce per fluid ounce?
Troy ounce per Fluid ounce (oz t/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 troy ounce per fluid ounce to dram per cup conversion exact?
Yes. Both troy ounce per fluid ounce and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 140.4342857 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.