Mass per volume density.
Ounces per Teaspoon to Milligrams per Gallon Converter — oz/tsp to mg/gal
Convert Ounce per Teaspoon (oz/tsp) to Milligram per Gallon (mg/gal) using the exact conversion factor (1 ounce per teaspoon = 21,772,433.76 milligram per gallon). See the formula, worked examples, and conversion table.
Ounces per Teaspoon to Milligrams per Gallon 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 / 0.0002641720524.
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 Milligrams per Gallon
Ounce per Teaspoon and Milligram per Gallon 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
milligrams per gallon = ounces per teaspoon × 21772433.76
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 milligram per gallon equals 0.000264172052358 base units, so dividing one by the other gives the direct ounce per teaspoon-to-milligram per gallon factor of 21772433.76.
Simple example
1 oz/tsp × 21772433.76 = 21,772,433.76 mg/gal
1 ounce per teaspoon = 21,772,433.76 milligrams per gallon.
Real-world example
1,000 oz/tsp × 21772433.76 = 21,772,433,760 mg/gal
1,000 ounces per teaspoon = 21,772,433,760 milligrams per gallon.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Milligram per Gallon (mg/gal) |
|---|---|
| 0.1 oz/tsp | 2,177,243.376 mg/gal |
| 1 oz/tsp | 21,772,433.76 mg/gal |
| 10 oz/tsp | 217,724,337.6 mg/gal |
| 100 oz/tsp | 2,177,243,376 mg/gal |
| 1,000 oz/tsp | 21,772,433,760 mg/gal |
| 10,000 oz/tsp | 217,724,337,600 mg/gal |
Reverse conversion: Milligram per Gallon to Ounce per Teaspoon
1 mg/gal × 4.592964e-8 = 4.592964e-8 oz/tsp
1 milligram per gallon = 4.592964e-8 ounces per teaspoon.
ounces per teaspoon = milligrams per gallon × 4.592964e-8
For a page dedicated to this direction, see Milligram per Gallon to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
Mass per volume density.
Understanding the Milligram per Gallon (mg/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per gallon are in 1 ounce per teaspoon?
1 ounce per teaspoon equals 21,772,433.76 milligrams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to milligram per gallon?
Multiply the ounce per teaspoon value by 21772433.76. The converter above does this instantly to whatever precision you set.
How do I convert milligram per gallon back to ounce per teaspoon?
Use the reverse factor: 1 milligram per gallon equals 4.592964e-8 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 milligram per gallon?
Milligram per Gallon (mg/gal) is a unit of density.
Is the ounce per teaspoon to milligram per gallon conversion exact?
Yes. Both ounce per teaspoon and milligram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 21772433.76 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.