Mass per volume density.
Drams per Cubic foot to Carats per Cubic Millimeter Converter — dr/ft3 to ct/mm3
Convert Dram per Cubic foot (dr/ft3) to Carat per Cubic Millimeter (ct/mm3) using the exact conversion factor (1 dram per cubic foot = 3.128606e-7 carat per cubic millimeter). See the formula, worked examples, and conversion table.
Drams per Cubic foot to Carats per Cubic Millimeter 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 0.06257212255 / 200000.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Cubic foot to Carats per Cubic Millimeter
Dram per Cubic foot and Carat per Cubic Millimeter 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
carats per cubic millimeter = drams per cubic foot × 3.128606e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cubic foot equals 0.0625721225545 base units, and 1 carat per cubic millimeter equals 200000 base units, so dividing one by the other gives the direct dram per cubic foot-to-carat per cubic millimeter factor of 3.128606e-7.
Simple example
1 dr/ft3 × 3.128606e-7 = 3.128606e-7 ct/mm3
1 dram per cubic foot = 3.128606e-7 carats per cubic millimeter.
Real-world example
1,000 dr/ft3 × 3.128606e-7 = 0.0003128606 ct/mm3
1,000 drams per cubic foot = 0.0003128606 carats per cubic millimeter.
Conversion table
| Dram per Cubic foot (dr/ft3) | Carat per Cubic Millimeter (ct/mm3) |
|---|---|
| 0.1 dr/ft3 | 3.128606e-8 ct/mm3 |
| 1 dr/ft3 | 3.128606e-7 ct/mm3 |
| 10 dr/ft3 | 0.0000031286 ct/mm3 |
| 100 dr/ft3 | 0.0000312861 ct/mm3 |
| 1,000 dr/ft3 | 0.0003128606 ct/mm3 |
| 10,000 dr/ft3 | 0.0031286061 ct/mm3 |
Reverse conversion: Carat per Cubic Millimeter to Dram per Cubic foot
3.128606e-7 ct/mm3 × 3196311.581 = 0.9999999592 dr/ft3
3.128606e-7 carats per cubic millimeter = 0.9999999592 drams per cubic foot.
drams per cubic foot = carats per cubic millimeter × 3196311.5815
For a page dedicated to this direction, see Carat per Cubic Millimeter to Dram per Cubic foot.
Understanding the Dram per Cubic foot (dr/ft3)
Mass per volume density.
Understanding the Carat per Cubic Millimeter (ct/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per cubic millimeter are in 1 dram per cubic foot?
1 dram per cubic foot equals 3.128606e-7 carats per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cubic foot to carat per cubic millimeter?
Multiply the dram per cubic foot value by 3.128606e-7. The converter above does this instantly to whatever precision you set.
How do I convert carat per cubic millimeter back to dram per cubic foot?
Use the reverse factor: 1 carat per cubic millimeter equals 3,196,311.581 drams per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cubic foot?
Dram per Cubic foot (dr/ft3) is a unit of density.
What is a carat per cubic millimeter?
Carat per Cubic Millimeter (ct/mm3) is a unit of density.
Is the dram per cubic foot to carat per cubic millimeter conversion exact?
Yes. Both dram per cubic foot and carat per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 3.128606e-7 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.