Mass per volume density.
Drams per Milliliter to Grains per Teaspoon Converter — dr/mL to gr/tsp
Convert Dram per Milliliter (dr/mL) to Grain per Teaspoon (gr/tsp) using the exact conversion factor (1 dram per milliliter = 134.7751998 grain per teaspoon). See the formula, worked examples, and conversion table.
Drams per Milliliter to Grains 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 1771.845195 / 13.14667088.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Milliliter to Grains per Teaspoon
Dram per Milliliter and Grain 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
grains per teaspoon = drams per milliliter × 134.775199829
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per milliliter equals 1771.84519531 base units, and 1 grain per teaspoon equals 13.1466708828 base units, so dividing one by the other gives the direct dram per milliliter-to-grain per teaspoon factor of 134.775199829.
Simple example
1 dr/mL × 134.7751998 = 134.7751998 gr/tsp
1 dram per milliliter = 134.7751998 grains per teaspoon.
Real-world example
1,000 dr/mL × 134.7751998 = 134,775.1998 gr/tsp
1,000 drams per milliliter = 134,775.1998 grains per teaspoon.
Conversion table
| Dram per Milliliter (dr/mL) | Grain per Teaspoon (gr/tsp) |
|---|---|
| 0.1 dr/mL | 13.47751998 gr/tsp |
| 1 dr/mL | 134.7751998 gr/tsp |
| 10 dr/mL | 1,347.751998 gr/tsp |
| 100 dr/mL | 13,477.51998 gr/tsp |
| 1,000 dr/mL | 134,775.1998 gr/tsp |
| 10,000 dr/mL | 1,347,751.998 gr/tsp |
Reverse conversion: Grain per Teaspoon to Dram per Milliliter
134.7751998 gr/tsp × 0.007419762696 = 0.9999999998 dr/mL
134.7751998 grains per teaspoon = 0.9999999998 drams per milliliter.
drams per milliliter = grains per teaspoon × 0.00741976269572
For a page dedicated to this direction, see Grain per Teaspoon to Dram per Milliliter.
Understanding the Dram per Milliliter (dr/mL)
Mass per volume density.
Understanding the Grain per Teaspoon (gr/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per teaspoon are in 1 dram per milliliter?
1 dram per milliliter equals 134.7751998 grains per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per milliliter to grain per teaspoon?
Multiply the dram per milliliter value by 134.7751998. The converter above does this instantly to whatever precision you set.
How do I convert grain per teaspoon back to dram per milliliter?
Use the reverse factor: 1 grain per teaspoon equals 0.0074197627 drams per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per milliliter?
Dram per Milliliter (dr/mL) is a unit of density.
What is a grain per teaspoon?
Grain per Teaspoon (gr/tsp) is a unit of density.
Is the dram per milliliter to grain per teaspoon conversion exact?
Yes. Both dram per milliliter and grain per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 134.7751998 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.