Milliliters to Fluid ounces Converter

Converting milliliters to fluid ounces is a multiplication by a fixed factor: 1 ml = 0.03381402 fl oz. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.

Because one milliliter works out to 0.03381402 fl oz, the fluid ounce is the far smaller unit of the two: a figure given in fluid ounce always carries a smaller number than the same measurement in milliliter. A chart drawn in ml can hide that, so check which label the axis uses before you compare two readings.

When a container size is certified in fluid ounces but you are dosing in milliliters, it pays to convert from the certified figure rather than from a rounded label.

The conversion factor used here is 0.03381402 fl oz per milliliter (8 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 ml a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 29.57353 ml per fl oz, the exact reciprocal, so a round trip through both pages returns your original number.

Milliliters to Fluid ounces formula

Use this formula to convert any milliliter value to fluid ounces:

fl oz = ml × 0.03381402

Worked example: 100 ml × 0.03381402 = 3.381402 fl oz.

Milliliters to Fluid ounces conversion table

Milliliters (ml)Fluid ounces (fl oz)
0.5 ml0.01690701 fl oz
1 ml0.03381402 fl oz
2 ml0.06762805 fl oz
5 ml0.1690701 fl oz
10 ml0.3381402 fl oz
20 ml0.6762805 fl oz
50 ml1.690701 fl oz
100 ml3.381402 fl oz
500 ml16.90701 fl oz
1000 ml33.81402 fl oz

How to convert milliliters to fluid ounces

Multiply the milliliter value by 0.03381402 to get the equivalent in fluid ounces. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.

If you need the opposite direction, use the Fluid ounces to Milliliters converter instead of dividing by hand; both pages use the same source factors. For every other ml conversion in one place, see the ml conversion hub.

Frequently asked questions

How many fluid ounces are in 1 milliliter?
1 milliliter = 0.03381402 fl oz.

What is 100 milliliters in fluid ounces?
100 ml = 3.381402 fl oz.

Is converting milliliters to fluid ounces the same as fluid ounces to milliliters?
No — the direction changes the multiplier. The reverse conversion (1 fl oz = 29.57353 ml) is on the Fluid ounces to Milliliters page.

Related conversions

Try the ConvBolt Unit Converter for any other volume unit, browse the Volume conversions, or read our conversion guides.