Mass per volume density.
Ounces per Teaspoon to Grains per Milliliter Converter — oz/tsp to gr/mL
Convert Ounce per Teaspoon (oz/tsp) to Grain per Milliliter (gr/mL) using the exact conversion factor (1 ounce per teaspoon = 88.76180959 grain per milliliter). See the formula, worked examples, and conversion table.
Ounces 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 5751.668511 / 64.79891.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Teaspoon to Grains per Milliliter
Ounce 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 = ounces per teaspoon × 88.7618095923
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per teaspoon equals 5751.66851121 base units, and 1 grain per milliliter equals 64.79891 base units, so dividing one by the other gives the direct ounce per teaspoon-to-grain per milliliter factor of 88.7618095923.
Simple example
1 oz/tsp × 88.76180959 = 88.76180959 gr/mL
1 ounce per teaspoon = 88.76180959 grains per milliliter.
Real-world example
1,000 oz/tsp × 88.76180959 = 88,761.80959 gr/mL
1,000 ounces per teaspoon = 88,761.80959 grains per milliliter.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Grain per Milliliter (gr/mL) |
|---|---|
| 0.1 oz/tsp | 8.876180959 gr/mL |
| 1 oz/tsp | 88.76180959 gr/mL |
| 10 oz/tsp | 887.6180959 gr/mL |
| 100 oz/tsp | 8,876.180959 gr/mL |
| 1,000 oz/tsp | 88,761.80959 gr/mL |
| 10,000 oz/tsp | 887,618.0959 gr/mL |
Reverse conversion: Grain per Milliliter to Ounce per Teaspoon
88.76180959 gr/mL × 0.0112661065 = 1 oz/tsp
88.76180959 grains per milliliter = 1 ounces per teaspoon.
ounces per teaspoon = grains per milliliter × 0.0112661065
For a page dedicated to this direction, see Grain per Milliliter to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/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 ounce per teaspoon?
1 ounce per teaspoon equals 88.76180959 grains per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to grain per milliliter?
Multiply the ounce per teaspoon value by 88.76180959. The converter above does this instantly to whatever precision you set.
How do I convert grain per milliliter back to ounce per teaspoon?
Use the reverse factor: 1 grain per milliliter equals 0.0112661065 ounces per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per teaspoon?
Ounce per Teaspoon (oz/tsp) is a unit of density.
What is a grain per milliliter?
Grain per Milliliter (gr/mL) is a unit of density.
Is the ounce per teaspoon to grain per milliliter conversion exact?
Yes. Both ounce per teaspoon and grain per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 88.76180959 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.