Mass per volume density.
Micrograms per Pint to Grains per Quart Converter — ug/pt to gr/qt
Convert Microgram per Pint (ug/pt) to Grain per Quart (gr/qt) using the exact conversion factor (1 microgram per pint = 0.0000308647 grain per quart). See the formula, worked examples, and conversion table.
Micrograms per Pint 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 2.11337642e-6 / 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 Pint to Grains per Quart
Microgram per Pint 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 pint × 0.0000308647167059
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per pint equals 0.00000211337641887 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct microgram per pint-to-grain per quart factor of 0.0000308647167059.
Simple example
1 ug/pt × 0.00003086471671 = 0.0000308647 gr/qt
1 microgram per pint = 0.0000308647 grains per quart.
Real-world example
1,000 ug/pt × 0.00003086471671 = 0.0308647167 gr/qt
1,000 micrograms per pint = 0.0308647167 grains per quart.
Conversion table
| Microgram per Pint (ug/pt) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 ug/pt | 0.0000030865 gr/qt |
| 1 ug/pt | 0.0000308647 gr/qt |
| 10 ug/pt | 0.0003086472 gr/qt |
| 100 ug/pt | 0.0030864717 gr/qt |
| 1,000 ug/pt | 0.0308647167 gr/qt |
| 10,000 ug/pt | 0.3086471671 gr/qt |
Reverse conversion: Grain per Quart to Microgram per Pint
0.0000308647 gr/qt × 32399.455 = 0.9999994587 ug/pt
0.0000308647 grains per quart = 0.9999994587 micrograms per pint.
micrograms per pint = grains per quart × 32399.455
For a page dedicated to this direction, see Grain per Quart to Microgram per Pint.
Understanding the Microgram per Pint (ug/pt)
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 pint?
1 microgram per pint equals 0.0000308647 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per pint to grain per quart?
Multiply the microgram per pint value by 0.00003086471671. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to microgram per pint?
Use the reverse factor: 1 grain per quart equals 32,399.455 micrograms per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per pint?
Microgram per Pint (ug/pt) 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 pint to grain per quart conversion exact?
Yes. Both microgram per pint and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.00003086471671 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.