Mass per volume density.
Kilograms per Fluid ounce to Milligrams per Cubic Millimeter Converter — kg/fl oz to mg/mm3
Convert Kilogram per Fluid ounce (kg/fl oz) to Milligram per Cubic Millimeter (mg/mm3) using the exact conversion factor (1 kilogram per fluid ounce = 33.8140227 milligram per cubic millimeter). See the formula, worked examples, and conversion table.
Kilograms per Fluid ounce to Milligrams 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 33814.0227 / 1000.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Fluid ounce to Milligrams per Cubic Millimeter
Kilogram per Fluid ounce and Milligram 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
milligrams per cubic millimeter = kilograms per fluid ounce × 33.8140227018
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per fluid ounce equals 33814.0227018 base units, and 1 milligram per cubic millimeter equals 1000 base units, so dividing one by the other gives the direct kilogram per fluid ounce-to-milligram per cubic millimeter factor of 33.8140227018.
Simple example
1 kg/fl oz × 33.8140227 = 33.8140227 mg/mm3
1 kilogram per fluid ounce = 33.8140227 milligrams per cubic millimeter.
Real-world example
1,000 kg/fl oz × 33.8140227 = 33,814.0227 mg/mm3
1,000 kilograms per fluid ounce = 33,814.0227 milligrams per cubic millimeter.
Conversion table
| Kilogram per Fluid ounce (kg/fl oz) | Milligram per Cubic Millimeter (mg/mm3) |
|---|---|
| 0.1 kg/fl oz | 3.38140227 mg/mm3 |
| 1 kg/fl oz | 33.8140227 mg/mm3 |
| 10 kg/fl oz | 338.140227 mg/mm3 |
| 100 kg/fl oz | 3,381.40227 mg/mm3 |
| 1,000 kg/fl oz | 33,814.0227 mg/mm3 |
| 10,000 kg/fl oz | 338,140.227 mg/mm3 |
Reverse conversion: Milligram per Cubic Millimeter to Kilogram per Fluid ounce
33.8140227 mg/mm3 × 0.02957352956 = 0.9999999999 kg/fl oz
33.8140227 milligrams per cubic millimeter = 0.9999999999 kilograms per fluid ounce.
kilograms per fluid ounce = milligrams per cubic millimeter × 0.0295735295625
For a page dedicated to this direction, see Milligram per Cubic Millimeter to Kilogram per Fluid ounce.
Understanding the Kilogram per Fluid ounce (kg/fl oz)
Mass per volume density.
Understanding the Milligram per Cubic Millimeter (mg/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per cubic millimeter are in 1 kilogram per fluid ounce?
1 kilogram per fluid ounce equals 33.8140227 milligrams per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per fluid ounce to milligram per cubic millimeter?
Multiply the kilogram per fluid ounce value by 33.8140227. The converter above does this instantly to whatever precision you set.
How do I convert milligram per cubic millimeter back to kilogram per fluid ounce?
Use the reverse factor: 1 milligram per cubic millimeter equals 0.0295735296 kilograms per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per fluid ounce?
Kilogram per Fluid ounce (kg/fl oz) is a unit of density.
What is a milligram per cubic millimeter?
Milligram per Cubic Millimeter (mg/mm3) is a unit of density.
Is the kilogram per fluid ounce to milligram per cubic millimeter conversion exact?
Yes. Both kilogram per fluid ounce and milligram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 33.8140227 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.