Mass per volume density.
Ounces per Teaspoon to Pounds per Cubic Millimeter Converter — oz/tsp to lb/mm3
Convert Ounce per Teaspoon (oz/tsp) to Pound per Cubic Millimeter (lb/mm3) using the exact conversion factor (1 ounce per teaspoon = 0.0000126803 pound per cubic millimeter). See the formula, worked examples, and conversion table.
Ounces per Teaspoon to Pounds per Cubic Millimeter 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 / 4.5359237e+8.
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 Cubic Millimeter
Ounce per Teaspoon and Pound per Cubic Millimeter 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 cubic millimeter = ounces per teaspoon × 0.0000126802585132
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 cubic millimeter equals 453592370 base units, so dividing one by the other gives the direct ounce per teaspoon-to-pound per cubic millimeter factor of 0.0000126802585132.
Simple example
1 oz/tsp × 0.00001268025851 = 0.0000126803 lb/mm3
1 ounce per teaspoon = 0.0000126803 pounds per cubic millimeter.
Real-world example
1,000 oz/tsp × 0.00001268025851 = 0.0126802585 lb/mm3
1,000 ounces per teaspoon = 0.0126802585 pounds per cubic millimeter.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Pound per Cubic Millimeter (lb/mm3) |
|---|---|
| 0.1 oz/tsp | 0.000001268 lb/mm3 |
| 1 oz/tsp | 0.0000126803 lb/mm3 |
| 10 oz/tsp | 0.0001268026 lb/mm3 |
| 100 oz/tsp | 0.0012680259 lb/mm3 |
| 1,000 oz/tsp | 0.0126802585 lb/mm3 |
| 10,000 oz/tsp | 0.1268025851 lb/mm3 |
Reverse conversion: Pound per Cubic Millimeter to Ounce per Teaspoon
0.0000126803 lb/mm3 × 78862.7455 = 1.000003272 oz/tsp
0.0000126803 pounds per cubic millimeter = 1.000003272 ounces per teaspoon.
ounces per teaspoon = pounds per cubic millimeter × 78862.7455
For a page dedicated to this direction, see Pound per Cubic Millimeter to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
Mass per volume density.
Understanding the Pound per Cubic Millimeter (lb/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cubic millimeter are in 1 ounce per teaspoon?
1 ounce per teaspoon equals 0.0000126803 pounds per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to pound per cubic millimeter?
Multiply the ounce per teaspoon value by 0.00001268025851. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic millimeter back to ounce per teaspoon?
Use the reverse factor: 1 pound per cubic millimeter equals 78,862.7455 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 cubic millimeter?
Pound per Cubic Millimeter (lb/mm3) is a unit of density.
Is the ounce per teaspoon to pound per cubic millimeter conversion exact?
Yes. Both ounce per teaspoon and pound per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.00001268025851 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.