Mass per volume density.
Carats per Tablespoon to Pounds per Cup Converter — ct/tbsp to lb/cup
Convert Carat per Tablespoon (ct/tbsp) to Pound per Cup (lb/cup) using the exact conversion factor (1 carat per tablespoon = 0.0070547924 pound per cup). See the formula, worked examples, and conversion table.
Carats per Tablespoon to Pounds 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 13.52560908 / 1917.222837.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Tablespoon to Pounds per Cup
Carat per Tablespoon and Pound 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
pounds per cup = carats per tablespoon × 0.00705479238992
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per tablespoon equals 13.5256090807 base units, and 1 pound per cup equals 1917.22283707 base units, so dividing one by the other gives the direct carat per tablespoon-to-pound per cup factor of 0.00705479238992.
Simple example
1 ct/tbsp × 0.00705479239 = 0.0070547924 lb/cup
1 carat per tablespoon = 0.0070547924 pounds per cup.
Real-world example
1,000 ct/tbsp × 0.00705479239 = 7.05479239 lb/cup
1,000 carats per tablespoon = 7.05479239 pounds per cup.
Conversion table
| Carat per Tablespoon (ct/tbsp) | Pound per Cup (lb/cup) |
|---|---|
| 0.1 ct/tbsp | 0.0007054792 lb/cup |
| 1 ct/tbsp | 0.0070547924 lb/cup |
| 10 ct/tbsp | 0.0705479239 lb/cup |
| 100 ct/tbsp | 0.705479239 lb/cup |
| 1,000 ct/tbsp | 7.05479239 lb/cup |
| 10,000 ct/tbsp | 70.5479239 lb/cup |
Reverse conversion: Pound per Cup to Carat per Tablespoon
0.0070547924 lb/cup × 141.7476156 = 1.000000001 ct/tbsp
0.0070547924 pounds per cup = 1.000000001 carats per tablespoon.
carats per tablespoon = pounds per cup × 141.747615625
For a page dedicated to this direction, see Pound per Cup to Carat per Tablespoon.
Understanding the Carat per Tablespoon (ct/tbsp)
Mass per volume density.
Understanding the Pound per Cup (lb/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cup are in 1 carat per tablespoon?
1 carat per tablespoon equals 0.0070547924 pounds per cup, using the exact defined conversion factor rather than an estimate.
How do I convert carat per tablespoon to pound per cup?
Multiply the carat per tablespoon value by 0.00705479239. The converter above does this instantly to whatever precision you set.
How do I convert pound per cup back to carat per tablespoon?
Use the reverse factor: 1 pound per cup equals 141.7476156 carats per tablespoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per tablespoon?
Carat per Tablespoon (ct/tbsp) is a unit of density.
What is a pound per cup?
Pound per Cup (lb/cup) is a unit of density.
Is the carat per tablespoon to pound per cup conversion exact?
Yes. Both carat per tablespoon and pound per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.00705479239 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.