Mass per volume density.
Micrograms per Teaspoon to Grains per Quart Converter — ug/tsp to gr/qt
Convert Microgram per Teaspoon (ug/tsp) to Grain per Quart (gr/qt) using the exact conversion factor (1 microgram per teaspoon = 0.0029630128 grain per quart). See the formula, worked examples, and conversion table.
Micrograms per Teaspoon to Grains 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 0.0002028841362 / 0.06847224418.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Teaspoon to Grains per Quart
Microgram per Teaspoon and Grain 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
grains per quart = micrograms per teaspoon × 0.00296301280376
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per teaspoon equals 0.000202884136211 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct microgram per teaspoon-to-grain per quart factor of 0.00296301280376.
Simple example
1 ug/tsp × 0.002963012804 = 0.0029630128 gr/qt
1 microgram per teaspoon = 0.0029630128 grains per quart.
Real-world example
1,000 ug/tsp × 0.002963012804 = 2.963012804 gr/qt
1,000 micrograms per teaspoon = 2.963012804 grains per quart.
Conversion table
| Microgram per Teaspoon (ug/tsp) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 ug/tsp | 0.0002963013 gr/qt |
| 1 ug/tsp | 0.0029630128 gr/qt |
| 10 ug/tsp | 0.029630128 gr/qt |
| 100 ug/tsp | 0.2963012804 gr/qt |
| 1,000 ug/tsp | 2.963012804 gr/qt |
| 10,000 ug/tsp | 29.63012804 gr/qt |
Reverse conversion: Grain per Quart to Microgram per Teaspoon
0.0029630128 gr/qt × 337.4943229 = 0.9999999987 ug/tsp
0.0029630128 grains per quart = 0.9999999987 micrograms per teaspoon.
micrograms per teaspoon = grains per quart × 337.494322917
For a page dedicated to this direction, see Grain per Quart to Microgram per Teaspoon.
Understanding the Microgram per Teaspoon (ug/tsp)
Mass per volume density.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per quart are in 1 microgram per teaspoon?
1 microgram per teaspoon equals 0.0029630128 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per teaspoon to grain per quart?
Multiply the microgram per teaspoon value by 0.002963012804. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to microgram per teaspoon?
Use the reverse factor: 1 grain per quart equals 337.4943229 micrograms per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per teaspoon?
Microgram per Teaspoon (ug/tsp) is a unit of density.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
Is the microgram per teaspoon to grain per quart conversion exact?
Yes. Both microgram per teaspoon and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.002963012804 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.