Mass per volume density.
Micrograms per Teaspoon to Grains per Cup Converter — ug/tsp to gr/cup
Convert Microgram per Teaspoon (ug/tsp) to Grain per Cup (gr/cup) using the exact conversion factor (1 microgram per teaspoon = 0.0007407532 grain per cup). See the formula, worked examples, and conversion table.
Micrograms per Teaspoon to Grains per Cup 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 / 0.2738889767.
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 Cup
Microgram per Teaspoon and Grain per Cup 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 cup = micrograms per teaspoon × 0.000740753200941
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 cup equals 0.273888976724 base units, so dividing one by the other gives the direct microgram per teaspoon-to-grain per cup factor of 0.000740753200941.
Simple example
1 ug/tsp × 0.0007407532009 = 0.0007407532 gr/cup
1 microgram per teaspoon = 0.0007407532 grains per cup.
Real-world example
1,000 ug/tsp × 0.0007407532009 = 0.7407532009 gr/cup
1,000 micrograms per teaspoon = 0.7407532009 grains per cup.
Conversion table
| Microgram per Teaspoon (ug/tsp) | Grain per Cup (gr/cup) |
|---|---|
| 0.1 ug/tsp | 0.0000740753 gr/cup |
| 1 ug/tsp | 0.0007407532 gr/cup |
| 10 ug/tsp | 0.007407532 gr/cup |
| 100 ug/tsp | 0.0740753201 gr/cup |
| 1,000 ug/tsp | 0.7407532009 gr/cup |
| 10,000 ug/tsp | 7.407532009 gr/cup |
Reverse conversion: Grain per Cup to Microgram per Teaspoon
0.0007407532 gr/cup × 1349.977292 = 0.9999999987 ug/tsp
0.0007407532 grains per cup = 0.9999999987 micrograms per teaspoon.
micrograms per teaspoon = grains per cup × 1349.97729167
For a page dedicated to this direction, see Grain per Cup to Microgram per Teaspoon.
Understanding the Microgram per Teaspoon (ug/tsp)
Mass per volume density.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cup are in 1 microgram per teaspoon?
1 microgram per teaspoon equals 0.0007407532 grains per cup, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per teaspoon to grain per cup?
Multiply the microgram per teaspoon value by 0.0007407532009. The converter above does this instantly to whatever precision you set.
How do I convert grain per cup back to microgram per teaspoon?
Use the reverse factor: 1 grain per cup equals 1,349.977292 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 cup?
Grain per Cup (gr/cup) is a unit of density.
Is the microgram per teaspoon to grain per cup conversion exact?
Yes. Both microgram per teaspoon and grain per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.0007407532009 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.