Mass per volume density.
Ounces per Cup to Pounds per Milliliter Converter — oz/cup to lb/mL
Convert Ounce per Cup (oz/cup) to Pound per Milliliter (lb/mL) using the exact conversion factor (1 ounce per cup = 0.0002641721 pound per milliliter). See the formula, worked examples, and conversion table.
Ounces per Cup 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 119.8264273 / 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 Cup to Pounds per Milliliter
Ounce per Cup 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 cup × 0.000264172052358
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cup equals 119.826427317 base units, and 1 pound per milliliter equals 453592.37 base units, so dividing one by the other gives the direct ounce per cup-to-pound per milliliter factor of 0.000264172052358.
Simple example
1 oz/cup × 0.0002641720524 = 0.0002641721 lb/mL
1 ounce per cup = 0.0002641721 pounds per milliliter.
Real-world example
1,000 oz/cup × 0.0002641720524 = 0.2641720524 lb/mL
1,000 ounces per cup = 0.2641720524 pounds per milliliter.
Conversion table
| Ounce per Cup (oz/cup) | Pound per Milliliter (lb/mL) |
|---|---|
| 0.1 oz/cup | 0.0000264172 lb/mL |
| 1 oz/cup | 0.0002641721 lb/mL |
| 10 oz/cup | 0.0026417205 lb/mL |
| 100 oz/cup | 0.0264172052 lb/mL |
| 1,000 oz/cup | 0.2641720524 lb/mL |
| 10,000 oz/cup | 2.641720524 lb/mL |
Reverse conversion: Pound per Milliliter to Ounce per Cup
0.0002641721 lb/mL × 3785.411784 = 1.00000018 oz/cup
0.0002641721 pounds per milliliter = 1.00000018 ounces per cup.
ounces per cup = pounds per milliliter × 3785.411784
For a page dedicated to this direction, see Pound per Milliliter to Ounce per Cup.
Understanding the Ounce per Cup (oz/cup)
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 cup?
1 ounce per cup equals 0.0002641721 pounds per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cup to pound per milliliter?
Multiply the ounce per cup value by 0.0002641720524. The converter above does this instantly to whatever precision you set.
How do I convert pound per milliliter back to ounce per cup?
Use the reverse factor: 1 pound per milliliter equals 3,785.411784 ounces per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cup?
Ounce per Cup (oz/cup) 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 cup to pound per milliliter conversion exact?
Yes. Both ounce per cup and pound per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.0002641720524 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.