Mass per volume density.
Ounces per Teaspoon to Pounds per Milliliter Converter — oz/tsp to lb/mL
Convert Ounce per Teaspoon (oz/tsp) to Pound per Milliliter (lb/mL) using the exact conversion factor (1 ounce per teaspoon = 0.0126802585 pound per milliliter). See the formula, worked examples, and conversion table.
Ounces per Teaspoon to Pounds 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 / 453592.37.
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 Pounds per Milliliter
Ounce per Teaspoon and Pound 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
pounds per milliliter = ounces per teaspoon × 0.0126802585132
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 pound per milliliter equals 453592.37 base units, so dividing one by the other gives the direct ounce per teaspoon-to-pound per milliliter factor of 0.0126802585132.
Simple example
1 oz/tsp × 0.01268025851 = 0.0126802585 lb/mL
1 ounce per teaspoon = 0.0126802585 pounds per milliliter.
Real-world example
1,000 oz/tsp × 0.01268025851 = 12.68025851 lb/mL
1,000 ounces per teaspoon = 12.68025851 pounds per milliliter.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Pound per Milliliter (lb/mL) |
|---|---|
| 0.1 oz/tsp | 0.0012680259 lb/mL |
| 1 oz/tsp | 0.0126802585 lb/mL |
| 10 oz/tsp | 0.1268025851 lb/mL |
| 100 oz/tsp | 1.268025851 lb/mL |
| 1,000 oz/tsp | 12.68025851 lb/mL |
| 10,000 oz/tsp | 126.8025851 lb/mL |
Reverse conversion: Pound per Milliliter to Ounce per Teaspoon
0.0126802585 lb/mL × 78.8627455 = 0.999999999 oz/tsp
0.0126802585 pounds per milliliter = 0.999999999 ounces per teaspoon.
ounces per teaspoon = pounds per milliliter × 78.8627455
For a page dedicated to this direction, see Pound per Milliliter to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
Mass per volume density.
Understanding the Pound per Milliliter (lb/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per milliliter are in 1 ounce per teaspoon?
1 ounce per teaspoon equals 0.0126802585 pounds per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to pound per milliliter?
Multiply the ounce per teaspoon value by 0.01268025851. The converter above does this instantly to whatever precision you set.
How do I convert pound per milliliter back to ounce per teaspoon?
Use the reverse factor: 1 pound per milliliter equals 78.8627455 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 pound per milliliter?
Pound per Milliliter (lb/mL) is a unit of density.
Is the ounce per teaspoon to pound per milliliter conversion exact?
Yes. Both ounce per teaspoon and pound per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.01268025851 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.