Mass per volume density.
Pounds per Teaspoon to Carats per Cup Converter — lb/tsp to ct/cup
Convert Pound per Teaspoon (lb/tsp) to Carat per Cup (ct/cup) using the exact conversion factor (1 pound per teaspoon = 108,862.1688 carat per cup). See the formula, worked examples, and conversion table.
Pounds per Teaspoon to Carats 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 92026.69618 / 0.8453505675.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Teaspoon to Carats per Cup
Pound per Teaspoon and Carat 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
carats per cup = pounds per teaspoon × 108862.1688
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per teaspoon equals 92026.6961794 base units, and 1 carat per cup equals 0.845350567546 base units, so dividing one by the other gives the direct pound per teaspoon-to-carat per cup factor of 108862.1688.
Simple example
1 lb/tsp × 108862.1688 = 108,862.1688 ct/cup
1 pound per teaspoon = 108,862.1688 carats per cup.
Real-world example
1,000 lb/tsp × 108862.1688 = 108,862,168.8 ct/cup
1,000 pounds per teaspoon = 108,862,168.8 carats per cup.
Conversion table
| Pound per Teaspoon (lb/tsp) | Carat per Cup (ct/cup) |
|---|---|
| 0.1 lb/tsp | 10,886.21688 ct/cup |
| 1 lb/tsp | 108,862.1688 ct/cup |
| 10 lb/tsp | 1,088,621.688 ct/cup |
| 100 lb/tsp | 10,886,216.88 ct/cup |
| 1,000 lb/tsp | 108,862,168.8 ct/cup |
| 10,000 lb/tsp | 1,088,621,688 ct/cup |
Reverse conversion: Carat per Cup to Pound per Teaspoon
1 ct/cup × 0.000009185927591 = 0.0000091859 lb/tsp
1 carat per cup = 0.0000091859 pounds per teaspoon.
pounds per teaspoon = carats per cup × 0.00000918592759104
For a page dedicated to this direction, see Carat per Cup to Pound per Teaspoon.
Understanding the Pound per Teaspoon (lb/tsp)
Mass per volume density.
Understanding the Carat per Cup (ct/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per cup are in 1 pound per teaspoon?
1 pound per teaspoon equals 108,862.1688 carats per cup, using the exact defined conversion factor rather than an estimate.
How do I convert pound per teaspoon to carat per cup?
Multiply the pound per teaspoon value by 108862.1688. The converter above does this instantly to whatever precision you set.
How do I convert carat per cup back to pound per teaspoon?
Use the reverse factor: 1 carat per cup equals 0.0000091859 pounds per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per teaspoon?
Pound per Teaspoon (lb/tsp) is a unit of density.
What is a carat per cup?
Carat per Cup (ct/cup) is a unit of density.
Is the pound per teaspoon to carat per cup conversion exact?
Yes. Both pound per teaspoon and carat per cup are defined by fixed standards rather than physical artifacts, so the factor of 108862.1688 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.