Mass concentration.
Ounces per Fluid ounce to Ounces per Milliliter Converter — oz/fl oz to oz/mL
Convert Ounce per Fluid ounce (oz/fl oz) to Ounce per Milliliter (oz/mL) using the exact conversion factor (1 ounce per fluid ounce = 0.0338140227 ounce per milliliter). See the formula, worked examples, and conversion table.
Ounces per Fluid ounce to Ounces per Milliliter converter
Converter
Chemistry Converter
Convert concentration, molarity, amount, and laboratory scientific units by compatible family.
Context values
Some unit families need one extra value for a physically accurate result.
Mass concentration.
Result = input x 958.6114185 / 28349.52313.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Fluid ounce to Ounces per Milliliter
Ounce per Fluid ounce and Ounce per Milliliter both measure mass concentration — how much of a substance is dissolved or dispersed in a given volume — a core calculation for preparing lab solutions, checking water quality against a regulatory limit, or formulating a pharmaceutical dose. Both are mass concentration units.
Formula
ounces per milliliter = ounces per fluid ounce × 0.0338140227018
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per fluid ounce equals 958.611418535 base units, and 1 ounce per milliliter equals 28349.523125 base units, so dividing one by the other gives the direct ounce per fluid ounce-to-ounce per milliliter factor of 0.0338140227018.
Simple example
1 oz/fl oz × 0.0338140227 = 0.0338140227 oz/mL
1 ounce per fluid ounce = 0.0338140227 ounces per milliliter.
Real-world example
100 oz/fl oz × 0.0338140227 = 3.38140227 oz/mL
100 ounces per fluid ounce = 3.38140227 ounces per milliliter.
Conversion table
| Ounce per Fluid ounce (oz/fl oz) | Ounce per Milliliter (oz/mL) |
|---|---|
| 0.001 oz/fl oz | 0.000033814 oz/mL |
| 0.01 oz/fl oz | 0.0003381402 oz/mL |
| 0.1 oz/fl oz | 0.0033814023 oz/mL |
| 1 oz/fl oz | 0.0338140227 oz/mL |
| 10 oz/fl oz | 0.338140227 oz/mL |
| 100 oz/fl oz | 3.38140227 oz/mL |
Reverse conversion: Ounce per Milliliter to Ounce per Fluid ounce
0.0338140227 oz/mL × 29.57352956 = 0.9999999999 oz/fl oz
0.0338140227 ounces per milliliter = 0.9999999999 ounces per fluid ounce.
ounces per fluid ounce = ounces per milliliter × 29.5735295625
For a page dedicated to this direction, see Ounce per Milliliter to Ounce per Fluid ounce.
Understanding the Ounce per Fluid ounce (oz/fl oz)
Mass concentration.
Understanding the Ounce per Milliliter (oz/mL)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per milliliter are in 1 ounce per fluid ounce?
1 ounce per fluid ounce equals 0.0338140227 ounces per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per fluid ounce to ounce per milliliter?
Multiply the ounce per fluid ounce value by 0.0338140227. The converter above does this instantly to whatever precision you set.
How do I convert ounce per milliliter back to ounce per fluid ounce?
Use the reverse factor: 1 ounce per milliliter equals 29.57352956 ounces per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per fluid ounce?
Ounce per Fluid ounce (oz/fl oz) is a unit of chemistry.
What is a ounce per milliliter?
Ounce per Milliliter (oz/mL) is a unit of chemistry.
Is the ounce per fluid ounce to ounce per milliliter conversion exact?
Yes. Both ounce per fluid ounce and ounce per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.0338140227 used above is exact to as many digits as you choose to display.
What's the difference between mass concentration and molarity?
Mass concentration expresses how much mass of a substance is present per unit volume (for example, grams per liter). Molarity expresses the amount in moles per liter instead, which accounts for the substance's molecular weight. This category converts mass-concentration units.