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Ounces to Milliliters Converter

Convert ounces (avoirdupois) (oz) to milliliters (mL), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Convert cups and spoons to grams or ounces (or back) for a chosen ingredient, using USDA weights, or enter your own density.

The quantity to convert. Fractions such as 3/4 or 1 1/2 are accepted.
Unit you want. Swap exchanges the two units.
Weight per cup differs by ingredient and by how it is measured (sifted, packed, chopped). Each option names the assumption used; choose Other to enter your own density.
Only used when the ingredient is Other: the weight per volume of your ingredient.
Result
Converted amount
28.3495 mL
Density used
1 g/mL (USDA FDC 174158, 1 ml = 1 g)
Exact
28.349523125

1 ounces (avoirdupois) of water = 28.3495 milliliters. Weights for cups and spoons vary with how the ingredient is measured, so treat this as a close estimate.

Show the the same amount in other volume units (17 rows)
The same amount in other volume units
UnitAmount
US teaspoons5.75167
US tablespoons1.91722
US fluid ounces0.958611
US cups0.119826
US liquid pints0.0599132
US liquid quarts0.0299566
US gallons0.00748915
US nutrition-label fluid ounces0.944984
US nutrition-label cups0.118123
liters0.0283495
metric teaspoons5.6699
metric tablespoons1.88997
metric cups0.113398
imperial fluid ounces0.997764
imperial pints0.0498882
imperial quarts0.0249441
imperial gallons0.00623602
Show the working
  1. 1 oz = 28.349523125 g
  2. ÷ 1 g/mL (USDA FDC 174158, 1 ml = 1 g) = 28.349523125 mL
  3. = 28.349523125 mL

How to convert ounces to milliliters

1 oz = 28.3495 mL, so multiply by 28.3495 to go from ounces (avoirdupois) to milliliters. Going the other way, 1 mL = 0.035274 oz.

mL = oz × 28.3495
oz = mL × 0.035274

Worked example:

5 oz = 141.747615625 g
÷ 1 g/mL (USDA FDC 174158, 1 ml = 1 g) = 141.747615625 mL
= 141.747615625 mL

Ounces to milliliters table

OuncesMilliliters
1 oz28.3495 mL
2 oz56.699 mL
3 oz85.0486 mL
4 oz113.398 mL
5 oz141.748 mL
6 oz170.097 mL
7 oz198.447 mL
8 oz226.796 mL
9 oz255.146 mL
10 oz283.495 mL
15 oz425.243 mL
20 oz566.99 mL
25 oz708.738 mL
30 oz850.486 mL
40 oz1,133.98 mL
50 oz1,417.48 mL
75 oz2,126.21 mL
100 oz2,834.95 mL
250 oz7,087.38 mL
500 oz14,174.8 mL
1000 oz28,349.5 mL

About the units

Ounces (oz)
Ounces (avoirdupois), a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).
Milliliters (mL)
Milliliters, a metric unit. Definition: BIPM SI Brochure.

Formula version 0.1.0Reviewed