Mass per volume density.
Long tons per Pint to Stones per Cubic Millimeter Converter — long ton/pt to st/mm3
Convert Long ton per Pint (long ton/pt) to Stone per Cubic Millimeter (st/mm3) using the exact conversion factor (1 long ton per pint = 0.0003381402 stone per cubic millimeter). See the formula, worked examples, and conversion table.
Long tons per Pint to Stones 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 2.14728958e+6 / 6.35029318e+9.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Long tons per Pint to Stones per Cubic Millimeter
Long ton per Pint and Stone 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
stones per cubic millimeter = long tons per pint × 0.000338140227018
This factor comes from each unit's defined relationship to the category's base unit: 1 long ton per pint equals 2147289.57752 base units, and 1 stone per cubic millimeter equals 6350293180 base units, so dividing one by the other gives the direct long ton per pint-to-stone per cubic millimeter factor of 0.000338140227018.
Simple example
1 long ton/pt × 0.000338140227 = 0.0003381402 st/mm3
1 long ton per pint = 0.0003381402 stones per cubic millimeter.
Real-world example
1,000 long ton/pt × 0.000338140227 = 0.338140227 st/mm3
1,000 long tons per pint = 0.338140227 stones per cubic millimeter.
Conversion table
| Long ton per Pint (long ton/pt) | Stone per Cubic Millimeter (st/mm3) |
|---|---|
| 0.1 long ton/pt | 0.000033814 st/mm3 |
| 1 long ton/pt | 0.0003381402 st/mm3 |
| 10 long ton/pt | 0.0033814023 st/mm3 |
| 100 long ton/pt | 0.0338140227 st/mm3 |
| 1,000 long ton/pt | 0.338140227 st/mm3 |
| 10,000 long ton/pt | 3.38140227 st/mm3 |
Reverse conversion: Stone per Cubic Millimeter to Long ton per Pint
0.0003381402 st/mm3 × 2957.352956 = 0.9999999201 long ton/pt
0.0003381402 stones per cubic millimeter = 0.9999999201 long tons per pint.
long tons per pint = stones per cubic millimeter × 2957.35295625
For a page dedicated to this direction, see Stone per Cubic Millimeter to Long ton per Pint.
Understanding the Long ton per Pint (long ton/pt)
Mass per volume density.
Understanding the Stone per Cubic Millimeter (st/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic millimeter are in 1 long ton per pint?
1 long ton per pint equals 0.0003381402 stones per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert long ton per pint to stone per cubic millimeter?
Multiply the long ton per pint value by 0.000338140227. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic millimeter back to long ton per pint?
Use the reverse factor: 1 stone per cubic millimeter equals 2,957.352956 long tons per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a long ton per pint?
Long ton per Pint (long ton/pt) is a unit of density.
What is a stone per cubic millimeter?
Stone per Cubic Millimeter (st/mm3) is a unit of density.
Is the long ton per pint to stone per cubic millimeter conversion exact?
Yes. Both long ton per pint and stone per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.000338140227 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.