mL to Oz Converter
Use our mL to oz converter to convert milliliters to ounces instantly. This tool shows both mL to US fl oz and mL to UK fl oz, explains the conversion of mL to oz, and includes the convert mL to oz formula with examples like convert 1 mL to oz.
What is mL to Oz Conversion?
Milliliters (mL) and ounces (oz) measure volume, but they are not the same. If you’re asking are mL and oz the same, the answer is no—mL is a metric unit, while ounces usually refers to fluid ounces (fl oz) used in the US and UK.
Because there are different fluid ounce standards, mL to ounces conversion depends on whether you mean US fl oz or UK fl oz. That’s why this mL to fl oz calculator shows both mL to US fl oz and mL to UK fl oz results.
If you’re comparing UK fl oz to US fl oz, note that a UK fluid ounce is slightly larger than a US fluid ounce. This affects conversions like mL to oz UK vs mL to fl oz US.
mL to Oz Formula (US fl oz & UK fl oz)
To convert mL to oz (fluid ounces), divide milliliters by the appropriate conversion factor. Use 29.5735 for US fl oz and 28.4131 for UK fl oz. This section includes the convert mL to oz formula for both systems.
Use this for mL to oz conversion in the United States (ml to fl oz us).
Use this for convert mL to oz UK conversions (ml to uk fl oz).
Useful if you’re converting UK fl oz to US fl oz directly.
So convert 1 mL to oz (US) is about 0.033814 US fluid ounces.
So 1 mL is about 0.035195 UK fluid ounces.
If you mean US fluid ounces, there are 29.5735 mL in 1 oz. For UK fluid ounces, 1 UK fl oz = 28.4131 mL.
The conversion of mL to oz depends on whether you want mL to US fl oz or mL to UK fl oz.
mL to Oz Definitions
These definitions clarify the measurement terms used in milliliters (mL) to ounces (oz) conversions.
- Milliliter (mL)
- A metric unit of volume equal to one-thousandth of a liter. Milliliters are commonly used for medicine dosages, beverages, and cooking measurements.
- Ounce (oz)
- A unit name used in multiple measurement systems. In everyday volume conversions like mL to oz, “oz” usually means fluid ounces (fl oz), not weight ounces.
- Fluid ounce (fl oz)
- A unit of volume (not weight). Fluid ounces measure how much space a liquid takes up and are commonly used on drink labels and recipes.
- US fluid ounce (US fl oz)
- The fluid ounce used in the United States customary system. It is slightly smaller than the UK (Imperial) fluid ounce.
- UK fluid ounce (UK fl oz)
- The fluid ounce used in the UK Imperial system. It is slightly larger than the US fluid ounce.
- Metric system
- An international measurement system based on units like meters, liters, and grams. Milliliters are part of the metric system.
- Imperial system
- A measurement system historically used in the UK. The UK (Imperial) fluid ounce is part of this system.
- Volume
- The amount of space a substance occupies. Milliliters and fluid ounces are both units of volume.
How to Convert mL to fl oz
- 1
Enter the volume in milliliters (mL).
- 2
Choose the result you need: mL to US fl oz or mL to UK fl oz.
- 3
We divide by 29.5735 for US fl oz and by 28.4131 for UK fl oz.
- 4
Read both results if you’re comparing labels or converting recipes between US and UK.
Frequently Asked Questions
No. mL is a metric unit, while oz typically refers to fluid ounces (fl oz), which can be US or UK (Imperial).
For US fluid ounces, use US fl oz = mL ÷ 29.5735. For UK fluid ounces, use UK fl oz = mL ÷ 28.4131.
US fl oz = mL ÷ 29.5735 and UK fl oz = mL ÷ 28.4131.
1 US fl oz equals 29.5735 mL. 1 UK fl oz equals 28.4131 mL.
Use the UK (Imperial) formula: UK fl oz = mL ÷ 28.4131.
Multiply UK fl oz by (28.4131 ÷ 29.5735) to get US fl oz, since a UK fl oz is larger than a US fl oz.
It’s a volume conversion from milliliters to fluid ounces. Because there are US and UK standards, mL to oz conversion can mean mL to US fl oz or mL to UK fl oz.