Cooking conversion

Ounces (oz) to Millilitres (mL) Converter

Convert Ounces (oz) to Millilitres (mL) with a free converter, formula and reference table. Set ingredient density for cooking conversions.

Converted value

28.349523125 Millilitres (mL)

1 Ounces (oz) ≈ 28.349523125 Millilitres (mL). Using 1 g/mL.

Need different units? Open the full cooking converter →

How to convert Ounces (oz) to Millilitres (mL)

Enter your amount in Ounces (oz) and your ingredient density in g/mL, then select Convert. The result is shown in Millilitres (mL).

Conversion formula

Result = amount × 28.349523125 ÷ 1 ÷ density

The formula uses the Ounces (oz) factor 28.349523125 and the Millilitres (mL) factor 1 in mL and g, with density to connect volume and mass.

Worked example

1 Ounces (oz) ≈ 28.349523125 Millilitres (mL). Reference examples assume a density of 1 g/mL (approximately water). Other ingredients need their own density.

Good to know

US customary cups and spoons differ from metric measures. Converting volume to mass requires ingredient density: the default 1 g/mL approximates water, not flour or other ingredients.

Results and displayed factors are rounded to 12 significant digits. Calculations use the full stored factors.

Unit reference: NIST conversion factors ↗

Ounces (oz) to Millilitres (mL) reference table

Quick reference values, rounded to 12 significant digits. Reference examples assume a density of 1 g/mL (approximately water). Other ingredients need their own density. This reference table stays at 1 g/mL when you change the calculator density.

Ounces (oz) to Millilitres (mL) at 1 g/mL
Ounces (oz)	Millilitres (mL)
0	0
1	28.349523125
5	141.747615625
10	283.49523125
20	566.9904625
50	1,417.47615625
100	2,834.9523125
1,000	28,349.523125

Reverse conversion

Millilitres (mL) to Ounces (oz)

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