Mass per volume density.
Long tons per Cubic foot to Kilograms per Cubic Meter Converter — long ton/ft3 to kg/m3
Convert Long ton per Cubic foot (long ton/ft3) to Kilogram per Cubic Meter (kg/m3) using the exact conversion factor (1 long ton per cubic foot = 35,881.35796 kilogram per cubic meter). See the formula, worked examples, conversion table, and common uses.
Long tons per Cubic foot to Kilograms per Cubic Meter 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 35881.35796 / 1.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Long tons per Cubic foot to Kilograms per Cubic Meter
Long ton per Cubic foot and Kilogram per Cubic Meter 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
kilograms per cubic meter = long tons per cubic foot × 35881.3579577
This factor comes from each unit's defined relationship to the category's base unit: 1 long ton per cubic foot equals 35881.3579577 base units, and 1 kilogram per cubic meter equals 1 base unit, so dividing one by the other gives the direct long ton per cubic foot-to-kilogram per cubic meter factor of 35881.3579577.
Simple example
1 long ton/ft3 × 35881.35796 = 35,881.35796 kg/m3
1 long ton per cubic foot = 35,881.35796 kilograms per cubic meter.
Real-world example
1,000 long ton/ft3 × 35881.35796 = 35,881,357.96 kg/m3
1,000 long tons per cubic foot = 35,881,357.96 kilograms per cubic meter.
Conversion table
| Long ton per Cubic foot (long ton/ft3) | Kilogram per Cubic Meter (kg/m3) |
|---|---|
| 0.1 long ton/ft3 | 3,588.135796 kg/m3 |
| 1 long ton/ft3 | 35,881.35796 kg/m3 |
| 10 long ton/ft3 | 358,813.5796 kg/m3 |
| 100 long ton/ft3 | 3,588,135.796 kg/m3 |
| 1,000 long ton/ft3 | 35,881,357.96 kg/m3 |
| 10,000 long ton/ft3 | 358,813,579.6 kg/m3 |
Reverse conversion: Kilogram per Cubic Meter to Long ton per Cubic foot
1 kg/m3 × 0.00002786962526 = 0.0000278696 long ton/ft3
1 kilogram per cubic meter = 0.0000278696 long tons per cubic foot.
long tons per cubic foot = kilograms per cubic meter × 0.0000278696252572
For a page dedicated to this direction, see Kilogram per Cubic Meter to Long ton per Cubic foot.
Understanding the Long ton per Cubic foot (long ton/ft3)
Mass per volume density.
Understanding the Kilogram per Cubic Meter
Kilogram per Cubic Meter (kg/m3) measures density. The SI coherent unit for density — the form all other metric density/concentration units in this catalog are ultimately defined relative to. It is classified as a SI coherent derived unit.
Where it's used: Universal — the official SI unit for density, used throughout physics and engineering worldwide
kg/m³ vs. g/L vs. kg/L. All three are exactly related: 1 kg/m³ = 1 g/L, and 1,000 kg/m³ = 1 kg/L. kg/m³ is the formal SI-coherent form; g/L and kg/L are more commonly used in everyday and laboratory contexts.
Uses of the Kilogram per Cubic Meter today
- Physics and engineering reference density values
- Material property tables in scientific literature
- Fluid dynamics and structural engineering calculations
Kilogram per Cubic Meter — sources
- BIPM SI Brochure, 9th edition — Kilogram per cubic meter as the SI coherent derived unit for density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cubic meter are in 1 long ton per cubic foot?
1 long ton per cubic foot equals 35,881.35796 kilograms per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert long ton per cubic foot to kilogram per cubic meter?
Multiply the long ton per cubic foot value by 35881.35796. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic meter back to long ton per cubic foot?
Use the reverse factor: 1 kilogram per cubic meter equals 0.0000278696 long tons per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a long ton per cubic foot?
Long ton per Cubic foot (long ton/ft3) is a unit of density.
What is a kilogram per cubic meter?
Kilogram per Cubic Meter (kg/m3) measures density. The SI coherent unit for density — the form all other metric density/concentration units in this catalog are ultimately defined relative to. It is classified as a SI coherent derived unit.
Is the long ton per cubic foot to kilogram per cubic meter conversion exact?
Yes. Both long ton per cubic foot and kilogram per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 35881.35796 used above is exact to as many digits as you choose to display.
What is the difference between kg/m³ vs. g/l vs. kg/l?
All three are exactly related: 1 kg/m³ = 1 g/L, and 1,000 kg/m³ = 1 kg/L. kg/m³ is the formal SI-coherent form; g/L and kg/L are more commonly used in everyday and laboratory contexts.