ML to Oz Converter

Convert milliliters to fluid ounces (mL to fl oz)

To convert milliliters to fluid ounces, divide the value in milliliters by 29.5735295625 — the same as multiplying by about 0.033814. It helps with US recipes, baby formula, cocktail measures, travel liquid limits and drink sizes. This ml to oz converter works both ways: type milliliters or fluid ounces into either box above and the other box, the worked formula and the chart below update as you type.

The milliliter (mL), or millilitre, is one thousandth of a liter — exactly one cubic centimeter, which is why doctors and engineers also call it a cc. Milliliters are printed on drink cans and bottles, medicine syringes, cosmetics and metric recipes. One milliliter is 0.033814 US fluid ounces.

The US fluid ounce (fl oz) is 1/128 of a US gallon, exactly 29.5735295625 mL. The imperial (UK) fluid ounce is slightly smaller at 28.4130625 mL. Going the other way, one US fluid ounce equals 29.5735 milliliters. Fluid ounces appear on US drink cans, baby bottles, cocktail recipes, cosmetics and nutrition labels.

How to convert ml to oz with this tool

1. Type a number into the Milliliters (mL) box — it starts at 100 mL as an example.
2. Read the answer in the US fluid ounces (fl oz) box and in the result panel, which also shows the formula with your number.
3. To go the other way, type into the fluid ounces box, or press the swap button to open the Oz to ML converter with your value carried over.
4. Choose how many decimal places you want, or tap a quick value such as 5 mL, 15 mL, 30 mL.
5. Press Copy result to paste the conversion into a message, spreadsheet or note.

ML to Oz converter features

ML to Oz formula

The formula is fl oz = mL ÷ 29.5735295625. It is exact because a US fluid ounce is 1/128 of a US gallon, which is exactly 29.5735295625 mL.

The reverse formula is mL = fl oz × 29.5735295625 — or use the Oz to ML converter. Three worked examples:

• The 100 mL airport liquids limit: 100 mL ÷ 29.5735295625 = 3.3814 fl oz
• A 330 mL can: 330 mL ÷ 29.5735295625 = 11.1586 fl oz
• A 500 mL bottle: 500 mL ÷ 29.5735295625 = 16.907 fl oz

US vs UK fluid ounces

A US fluid ounce is 29.5735 mL, while an imperial (UK) fluid ounce is 28.4131 mL — about 4% smaller. British, Irish and older Australian or Canadian recipes may use the imperial size, so check where a recipe comes from: 100 mL = 3.3814 fl oz, but 100 mL = 3.5195 UK fl oz.

A fluid ounce measures volume. The ounce on a kitchen scale measures weight — for that, use the grams to ounces or ounces to grams converter.

ML to Oz quick reference

The values people look up most often, worked out with the exact factor:

• 1 mL = 0.033814 fl oz
• 1 fl oz = 29.5735 mL
• 5 mL = 0.1691 fl oz
• 15 mL = 0.5072 fl oz
• 30 mL = 1.0144 fl oz
• 100 mL = 3.3814 fl oz

Quick tip: Divide by 30 for a quick estimate (about 1.4% low): 300 mL ≈ 10 fl oz, versus the exact 10.1442 fl oz.

Related conversions: ML to Cups, Cups to ML and the full volume converter.

ML to Oz conversion table

Values in fluid ounces are rounded to 4 decimal places (more for very small numbers). For any value not listed, type it into the converter above.