Mass per volume density.
Stones per Cubic Meter to Kilograms per Cubic Meter Converter — st/m3 to kg/m3
Convert Stone per Cubic Meter (st/m3) to Kilogram per Cubic Meter (kg/m3) using the exact conversion factor (1 stone per cubic meter = 6.35029318 kilogram per cubic meter). See the formula, worked examples, conversion table, and common uses.
Stones per Cubic Meter 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 6.35029318 / 1.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cubic Meter to Kilograms per Cubic Meter
Stone per Cubic Meter 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 = stones per cubic meter × 6.35029318
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cubic meter equals 6.35029318 base units, and 1 kilogram per cubic meter equals 1 base unit, so dividing one by the other gives the direct stone per cubic meter-to-kilogram per cubic meter factor of 6.35029318.
Simple example
1 st/m3 × 6.35029318 = 6.35029318 kg/m3
1 stone per cubic meter = 6.35029318 kilograms per cubic meter.
Real-world example
1,000 st/m3 × 6.35029318 = 6,350.29318 kg/m3
1,000 stones per cubic meter = 6,350.29318 kilograms per cubic meter.
Conversion table
| Stone per Cubic Meter (st/m3) | Kilogram per Cubic Meter (kg/m3) |
|---|---|
| 0.1 st/m3 | 0.635029318 kg/m3 |
| 1 st/m3 | 6.35029318 kg/m3 |
| 10 st/m3 | 63.5029318 kg/m3 |
| 100 st/m3 | 635.029318 kg/m3 |
| 1,000 st/m3 | 6,350.29318 kg/m3 |
| 10,000 st/m3 | 63,502.9318 kg/m3 |
Reverse conversion: Kilogram per Cubic Meter to Stone per Cubic Meter
6.35029318 kg/m3 × 0.1574730444 = 1 st/m3
6.35029318 kilograms per cubic meter = 1 stone per cubic meter.
stones per cubic meter = kilograms per cubic meter × 0.157473044418
For a page dedicated to this direction, see Kilogram per Cubic Meter to Stone per Cubic Meter.
Understanding the Stone per Cubic Meter (st/m3)
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 stone per cubic meter?
1 stone per cubic meter equals 6.35029318 kilograms per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cubic meter to kilogram per cubic meter?
Multiply the stone per cubic meter value by 6.35029318. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic meter back to stone per cubic meter?
Use the reverse factor: 1 kilogram per cubic meter equals 0.1574730444 stones per cubic meter. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cubic meter?
Stone per Cubic Meter (st/m3) 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 stone per cubic meter to kilogram per cubic meter conversion exact?
Yes. Both stone per cubic meter and kilogram per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 6.35029318 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.