Mass per volume density.
Grains per Liter to Micrograms per Teaspoon Converter — gr/L to ug/tsp
Convert Grain per Liter (gr/L) to Microgram per Teaspoon (ug/tsp) using the exact conversion factor (1 grain per liter = 319.3887468 microgram per teaspoon). See the formula, worked examples, and conversion table.
Grains per Liter to Micrograms per Teaspoon 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 0.06479891 / 0.0002028841362.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Liter to Micrograms per Teaspoon
Grain per Liter and Microgram per Teaspoon 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
micrograms per teaspoon = grains per liter × 319.38874675
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per liter equals 0.06479891 base units, and 1 microgram per teaspoon equals 0.000202884136211 base units, so dividing one by the other gives the direct grain per liter-to-microgram per teaspoon factor of 319.38874675.
Simple example
1 gr/L × 319.3887468 = 319.3887468 ug/tsp
1 grain per liter = 319.3887468 micrograms per teaspoon.
Real-world example
1,000 gr/L × 319.3887468 = 319,388.7468 ug/tsp
1,000 grains per liter = 319,388.7468 micrograms per teaspoon.
Conversion table
| Grain per Liter (gr/L) | Microgram per Teaspoon (ug/tsp) |
|---|---|
| 0.1 gr/L | 31.93887468 ug/tsp |
| 1 gr/L | 319.3887468 ug/tsp |
| 10 gr/L | 3,193.887468 ug/tsp |
| 100 gr/L | 31,938.87468 ug/tsp |
| 1,000 gr/L | 319,388.7468 ug/tsp |
| 10,000 gr/L | 3,193,887.468 ug/tsp |
Reverse conversion: Microgram per Teaspoon to Grain per Liter
319.3887468 ug/tsp × 0.003130980694 = 1 gr/L
319.3887468 micrograms per teaspoon = 1 grains per liter.
grains per liter = micrograms per teaspoon × 0.00313098069414
For a page dedicated to this direction, see Microgram per Teaspoon to Grain per Liter.
Understanding the Grain per Liter (gr/L)
Mass per volume density.
Understanding the Microgram per Teaspoon (ug/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per teaspoon are in 1 grain per liter?
1 grain per liter equals 319.3887468 micrograms per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per liter to microgram per teaspoon?
Multiply the grain per liter value by 319.3887468. The converter above does this instantly to whatever precision you set.
How do I convert microgram per teaspoon back to grain per liter?
Use the reverse factor: 1 microgram per teaspoon equals 0.0031309807 grains per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per liter?
Grain per Liter (gr/L) is a unit of density.
What is a microgram per teaspoon?
Microgram per Teaspoon (ug/tsp) is a unit of density.
Is the grain per liter to microgram per teaspoon conversion exact?
Yes. Both grain per liter and microgram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 319.3887468 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.