Mass per volume density.
Grains per Tablespoon to Carats per Quart Converter — gr/tbsp to ct/qt
Convert Grain per Tablespoon (gr/tbsp) to Carat per Quart (ct/qt) using the exact conversion factor (1 grain per tablespoon = 20.7356512 carat per quart). See the formula, worked examples, and conversion table.
Grains per Tablespoon to Carats per Quart 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 4.382223628 / 0.2113376419.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Tablespoon to Carats per Quart
Grain per Tablespoon and Carat per Quart 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 quart = grains per tablespoon × 20.7356512
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per tablespoon equals 4.38222362759 base units, and 1 carat per quart equals 0.211337641887 base units, so dividing one by the other gives the direct grain per tablespoon-to-carat per quart factor of 20.7356512.
Simple example
1 gr/tbsp × 20.7356512 = 20.7356512 ct/qt
1 grain per tablespoon = 20.7356512 carats per quart.
Real-world example
1,000 gr/tbsp × 20.7356512 = 20,735.6512 ct/qt
1,000 grains per tablespoon = 20,735.6512 carats per quart.
Conversion table
| Grain per Tablespoon (gr/tbsp) | Carat per Quart (ct/qt) |
|---|---|
| 0.1 gr/tbsp | 2.07356512 ct/qt |
| 1 gr/tbsp | 20.7356512 ct/qt |
| 10 gr/tbsp | 207.356512 ct/qt |
| 100 gr/tbsp | 2,073.56512 ct/qt |
| 1,000 gr/tbsp | 20,735.6512 ct/qt |
| 10,000 gr/tbsp | 207,356.512 ct/qt |
Reverse conversion: Carat per Quart to Grain per Tablespoon
20.7356512 ct/qt × 0.04822611985 = 1 gr/tbsp
20.7356512 carats per quart = 1 grains per tablespoon.
grains per tablespoon = carats per quart × 0.0482261198529
For a page dedicated to this direction, see Carat per Quart to Grain per Tablespoon.
Understanding the Grain per Tablespoon (gr/tbsp)
Mass per volume density.
Understanding the Carat per Quart (ct/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per quart are in 1 grain per tablespoon?
1 grain per tablespoon equals 20.7356512 carats per quart, using the exact defined conversion factor rather than an estimate.
How do I convert grain per tablespoon to carat per quart?
Multiply the grain per tablespoon value by 20.7356512. The converter above does this instantly to whatever precision you set.
How do I convert carat per quart back to grain per tablespoon?
Use the reverse factor: 1 carat per quart equals 0.0482261199 grains per tablespoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per tablespoon?
Grain per Tablespoon (gr/tbsp) is a unit of density.
What is a carat per quart?
Carat per Quart (ct/qt) is a unit of density.
Is the grain per tablespoon to carat per quart conversion exact?
Yes. Both grain per tablespoon and carat per quart are defined by fixed standards rather than physical artifacts, so the factor of 20.7356512 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.