Mass per volume density.
Drams per Cup to Long tons per Cubic foot Converter — dr/cup to long ton/ft3
Convert Dram per Cup (dr/cup) to Long ton per Cubic foot (long ton/ft3) using the exact conversion factor (1 dram per cup = 0.0002087199 long ton per cubic foot). See the formula, worked examples, and conversion table.
Drams per Cup to Long tons per Cubic foot 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 7.489151707 / 35881.35796.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Cup to Long tons per Cubic foot
Dram per Cup and Long ton per Cubic foot 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
long tons per cubic foot = drams per cup × 0.000208719851577
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cup equals 7.48915170731 base units, and 1 long ton per cubic foot equals 35881.3579577 base units, so dividing one by the other gives the direct dram per cup-to-long ton per cubic foot factor of 0.000208719851577.
Simple example
1 dr/cup × 0.0002087198516 = 0.0002087199 long ton/ft3
1 dram per cup = 0.0002087199 long tons per cubic foot.
Real-world example
1,000 dr/cup × 0.0002087198516 = 0.2087198516 long ton/ft3
1,000 drams per cup = 0.2087198516 long tons per cubic foot.
Conversion table
| Dram per Cup (dr/cup) | Long ton per Cubic foot (long ton/ft3) |
|---|---|
| 0.1 dr/cup | 0.000020872 long ton/ft3 |
| 1 dr/cup | 0.0002087199 long ton/ft3 |
| 10 dr/cup | 0.0020871985 long ton/ft3 |
| 100 dr/cup | 0.0208719852 long ton/ft3 |
| 1,000 dr/cup | 0.2087198516 long ton/ft3 |
| 10,000 dr/cup | 2.087198516 long ton/ft3 |
Reverse conversion: Long ton per Cubic foot to Dram per Cup
0.0002087199 long ton/ft3 × 4791.111111 = 1.000000232 dr/cup
0.0002087199 long tons per cubic foot = 1.000000232 drams per cup.
drams per cup = long tons per cubic foot × 4791.11111111
For a page dedicated to this direction, see Long ton per Cubic foot to Dram per Cup.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Understanding the Long ton per Cubic foot (long ton/ft3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons per cubic foot are in 1 dram per cup?
1 dram per cup equals 0.0002087199 long tons per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cup to long ton per cubic foot?
Multiply the dram per cup value by 0.0002087198516. The converter above does this instantly to whatever precision you set.
How do I convert long ton per cubic foot back to dram per cup?
Use the reverse factor: 1 long ton per cubic foot equals 4,791.111111 drams per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
What is a long ton per cubic foot?
Long ton per Cubic foot (long ton/ft3) is a unit of density.
Is the dram per cup to long ton per cubic foot conversion exact?
Yes. Both dram per cup and long ton per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 0.0002087198516 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.