Mass per volume density.
Grams per Cup to Carats per Tablespoon Converter — g/cup to ct/tbsp
Convert Gram per Cup (g/cup) to Carat per Tablespoon (ct/tbsp) using the exact conversion factor (1 gram per cup = 0.3125 carat per tablespoon). See the formula, worked examples, and conversion table.
Grams per Cup to Carats per Tablespoon 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 4.226752838 / 13.52560908.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cup to Carats per Tablespoon
Gram per Cup and Carat per Tablespoon 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 tablespoon = grams per cup × 0.3125
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cup equals 4.22675283773 base units, and 1 carat per tablespoon equals 13.5256090807 base units, so dividing one by the other gives the direct gram per cup-to-carat per tablespoon factor of 0.3125.
Simple example
1 g/cup × 0.3125 = 0.3125 ct/tbsp
1 gram per cup = 0.3125 carats per tablespoon.
Real-world example
1,000 g/cup × 0.3125 = 312.5 ct/tbsp
1,000 grams per cup = 312.5 carats per tablespoon.
Conversion table
| Gram per Cup (g/cup) | Carat per Tablespoon (ct/tbsp) |
|---|---|
| 0.1 g/cup | 0.03125 ct/tbsp |
| 1 g/cup | 0.3125 ct/tbsp |
| 10 g/cup | 3.125 ct/tbsp |
| 100 g/cup | 31.25 ct/tbsp |
| 1,000 g/cup | 312.5 ct/tbsp |
| 10,000 g/cup | 3,125 ct/tbsp |
Reverse conversion: Carat per Tablespoon to Gram per Cup
0.3125 ct/tbsp × 3.2 = 1 g/cup
0.3125 carats per tablespoon = 1 grams per cup.
grams per cup = carats per tablespoon × 3.2
For a page dedicated to this direction, see Carat per Tablespoon to Gram per Cup.
Understanding the Gram per Cup (g/cup)
Mass per volume density.
Understanding the Carat per Tablespoon (ct/tbsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per tablespoon are in 1 gram per cup?
1 gram per cup equals 0.3125 carats per tablespoon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cup to carat per tablespoon?
Multiply the gram per cup value by 0.3125. The converter above does this instantly to whatever precision you set.
How do I convert carat per tablespoon back to gram per cup?
Use the reverse factor: 1 carat per tablespoon equals 3.2 grams per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cup?
Gram per Cup (g/cup) is a unit of density.
What is a carat per tablespoon?
Carat per Tablespoon (ct/tbsp) is a unit of density.
Is the gram per cup to carat per tablespoon conversion exact?
Yes. Both gram per cup and carat per tablespoon are defined by fixed standards rather than physical artifacts, so the factor of 0.3125 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.