Mass per volume density.
Carats per Cubic Millimeter to Long tons per Cup Converter — ct/mm3 to long ton/cup
Convert Carat per Cubic Millimeter (ct/mm3) to Long ton per Cup (long ton/cup) using the exact conversion factor (1 carat per cubic millimeter = 0.0465703373 long ton per cup). See the formula, worked examples, and conversion table.
Carats per Cubic Millimeter to Long tons 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 200000 / 4.29457916e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Cubic Millimeter to Long tons per Cup
Carat per Cubic Millimeter and Long ton 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
long tons per cup = carats per cubic millimeter × 0.0465703373439
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cubic millimeter equals 200000 base units, and 1 long ton per cup equals 4294579.15504 base units, so dividing one by the other gives the direct carat per cubic millimeter-to-long ton per cup factor of 0.0465703373439.
Simple example
1 ct/mm3 × 0.04657033734 = 0.0465703373 long ton/cup
1 carat per cubic millimeter = 0.0465703373 long tons per cup.
Real-world example
1,000 ct/mm3 × 0.04657033734 = 46.57033734 long ton/cup
1,000 carats per cubic millimeter = 46.57033734 long tons per cup.
Conversion table
| Carat per Cubic Millimeter (ct/mm3) | Long ton per Cup (long ton/cup) |
|---|---|
| 0.1 ct/mm3 | 0.0046570337 long ton/cup |
| 1 ct/mm3 | 0.0465703373 long ton/cup |
| 10 ct/mm3 | 0.4657033734 long ton/cup |
| 100 ct/mm3 | 4.657033734 long ton/cup |
| 1,000 ct/mm3 | 46.57033734 long ton/cup |
| 10,000 ct/mm3 | 465.7033734 long ton/cup |
Reverse conversion: Long ton per Cup to Carat per Cubic Millimeter
0.0465703373 long ton/cup × 21.47289578 = 0.9999999991 ct/mm3
0.0465703373 long tons per cup = 0.9999999991 carats per cubic millimeter.
carats per cubic millimeter = long tons per cup × 21.4728957752
For a page dedicated to this direction, see Long ton per Cup to Carat per Cubic Millimeter.
Understanding the Carat per Cubic Millimeter (ct/mm3)
Mass per volume density.
Understanding the Long ton per Cup (long ton/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons per cup are in 1 carat per cubic millimeter?
1 carat per cubic millimeter equals 0.0465703373 long tons per cup, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic millimeter to long ton per cup?
Multiply the carat per cubic millimeter value by 0.04657033734. The converter above does this instantly to whatever precision you set.
How do I convert long ton per cup back to carat per cubic millimeter?
Use the reverse factor: 1 long ton per cup equals 21.47289578 carats per cubic millimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cubic millimeter?
Carat per Cubic Millimeter (ct/mm3) is a unit of density.
What is a long ton per cup?
Long ton per Cup (long ton/cup) is a unit of density.
Is the carat per cubic millimeter to long ton per cup conversion exact?
Yes. Both carat per cubic millimeter and long ton per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.04657033734 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.