Mass per volume density.
Carats per Teaspoon to Stones per Cubic foot Converter — ct/tsp to st/ft3
Convert Carat per Teaspoon (ct/tsp) to Stone per Cubic foot (st/ft3) using the exact conversion factor (1 carat per teaspoon = 0.1809377551 stone per cubic foot). See the formula, worked examples, and conversion table.
Carats per Teaspoon to Stones per Cubic foot 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 40.57682724 / 224.2584872.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Teaspoon to Stones per Cubic foot
Carat per Teaspoon and Stone per Cubic foot 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 foot = carats per teaspoon × 0.180937755099
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per teaspoon equals 40.5768272422 base units, and 1 stone per cubic foot equals 224.258487235 base units, so dividing one by the other gives the direct carat per teaspoon-to-stone per cubic foot factor of 0.180937755099.
Simple example
1 ct/tsp × 0.1809377551 = 0.1809377551 st/ft3
1 carat per teaspoon = 0.1809377551 stones per cubic foot.
Real-world example
1,000 ct/tsp × 0.1809377551 = 180.9377551 st/ft3
1,000 carats per teaspoon = 180.9377551 stones per cubic foot.
Conversion table
| Carat per Teaspoon (ct/tsp) | Stone per Cubic foot (st/ft3) |
|---|---|
| 0.1 ct/tsp | 0.0180937755 st/ft3 |
| 1 ct/tsp | 0.1809377551 st/ft3 |
| 10 ct/tsp | 1.809377551 st/ft3 |
| 100 ct/tsp | 18.09377551 st/ft3 |
| 1,000 ct/tsp | 180.9377551 st/ft3 |
| 10,000 ct/tsp | 1,809.377551 st/ft3 |
Reverse conversion: Stone per Cubic foot to Carat per Teaspoon
0.1809377551 st/ft3 × 5.526762502 = 1 ct/tsp
0.1809377551 stones per cubic foot = 1 carats per teaspoon.
carats per teaspoon = stones per cubic foot × 5.52676250158
For a page dedicated to this direction, see Stone per Cubic foot to Carat per Teaspoon.
Understanding the Carat per Teaspoon (ct/tsp)
Mass per volume density.
Understanding the Stone per Cubic foot (st/ft3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic foot are in 1 carat per teaspoon?
1 carat per teaspoon equals 0.1809377551 stones per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert carat per teaspoon to stone per cubic foot?
Multiply the carat per teaspoon value by 0.1809377551. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic foot back to carat per teaspoon?
Use the reverse factor: 1 stone per cubic foot equals 5.526762502 carats per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per teaspoon?
Carat per Teaspoon (ct/tsp) is a unit of density.
What is a stone per cubic foot?
Stone per Cubic foot (st/ft3) is a unit of density.
Is the carat per teaspoon to stone per cubic foot conversion exact?
Yes. Both carat per teaspoon and stone per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 0.1809377551 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.