Mass per volume density.
Grams per Teaspoon to Grains per Milliliter Converter — g/tsp to gr/mL
Convert Gram per Teaspoon (g/tsp) to Grain per Milliliter (gr/mL) using the exact conversion factor (1 gram per teaspoon = 3.130980694 grain per milliliter). See the formula, worked examples, and conversion table.
Grams per Teaspoon to Grains per Milliliter 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 202.8841362 / 64.79891.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Teaspoon to Grains per Milliliter
Gram per Teaspoon and Grain per Milliliter 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 milliliter = grams per teaspoon × 3.13098069414
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per teaspoon equals 202.884136211 base units, and 1 grain per milliliter equals 64.79891 base units, so dividing one by the other gives the direct gram per teaspoon-to-grain per milliliter factor of 3.13098069414.
Simple example
1 g/tsp × 3.130980694 = 3.130980694 gr/mL
1 gram per teaspoon = 3.130980694 grains per milliliter.
Real-world example
1,000 g/tsp × 3.130980694 = 3,130.980694 gr/mL
1,000 grams per teaspoon = 3,130.980694 grains per milliliter.
Conversion table
| Gram per Teaspoon (g/tsp) | Grain per Milliliter (gr/mL) |
|---|---|
| 0.1 g/tsp | 0.3130980694 gr/mL |
| 1 g/tsp | 3.130980694 gr/mL |
| 10 g/tsp | 31.30980694 gr/mL |
| 100 g/tsp | 313.0980694 gr/mL |
| 1,000 g/tsp | 3,130.980694 gr/mL |
| 10,000 g/tsp | 31,309.80694 gr/mL |
Reverse conversion: Grain per Milliliter to Gram per Teaspoon
3.130980694 gr/mL × 0.3193887468 = 1 g/tsp
3.130980694 grains per milliliter = 1 grams per teaspoon.
grams per teaspoon = grains per milliliter × 0.31938874675
For a page dedicated to this direction, see Grain per Milliliter to Gram per Teaspoon.
Understanding the Gram per Teaspoon (g/tsp)
Mass per volume density.
Understanding the Grain per Milliliter (gr/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per milliliter are in 1 gram per teaspoon?
1 gram per teaspoon equals 3.130980694 grains per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per teaspoon to grain per milliliter?
Multiply the gram per teaspoon value by 3.130980694. The converter above does this instantly to whatever precision you set.
How do I convert grain per milliliter back to gram per teaspoon?
Use the reverse factor: 1 grain per milliliter equals 0.3193887468 grams per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per teaspoon?
Gram per Teaspoon (g/tsp) is a unit of density.
What is a grain per milliliter?
Grain per Milliliter (gr/mL) is a unit of density.
Is the gram per teaspoon to grain per milliliter conversion exact?
Yes. Both gram per teaspoon and grain per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 3.130980694 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.