A nutrition label says serving size is 8 fl oz. How much is that in ml?

8 fl oz = 237 ml. That's one cup, or a standard beverage serving size in the US.

I found a European juice bottle that says 1 liter. How many fluid ounces is that?

1 liter = 33.8 fl oz. That's about 4 cups or larger than a quart (32 fl oz).

How do I estimate fl oz to ml mentally?

Rough estimate: multiply by 30 (or 29.57 for precision). Example: 8 fl oz × 30 = 240 ml.

A recipe calls for 12 fl oz of broth. What should I use?

12 fl oz = 355 ml. You could use one 350-375 ml container, or combine smaller metric containers (like 250 ml + 100 ml).

Fluid Ounces (fl oz) to Milliliters (ml) Converter

Enter a value to instantly convert between volume units.

From

Precision4 dp

1 US Fluid Ounce = 29.5735 Milliliter

Key Formulas

Liter → US Gallon

gal = L × 0.264172

US Gallon → Liter

L = gal × 3.78541

US Cup → Milliliter

mL = cup × 236.588

Milliliter → US Cup

cup = mL × 0.00422675

Formula

ml = fl oz × 29.5735

One US fluid ounce equals 29.5735 milliliters. Fluid ounces are used in the US for beverages, cooking measurements, and nutrition labels. Milliliters are the global metric standard. You'll need this when reading nutrition labels on imported products or when scaling beverage recipes from different countries.

Source: NIST SP 811, Table B.8

Frequently Asked Questions

Real-World Examples

Single tablespoon equivalent. Used for shots, small sauce portions, or medication dosing.

1 fl oz = 29.57 mL

One cup of liquid. Standard US measuring cup or beverage serving size.

8 fl oz = 236.6 mL

One pint or half-liter bottle. Common for milk, cream, or beverage bottles.

16 fl oz = 473.2 mL

One quart. Used for large beverage containers or bulk liquid measurements.

32 fl oz = 946.4 mL

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Fluid Ounces (fl oz) to Milliliters (ml) Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

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