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US Fluid Ounces to Ounces Converter

Convert US fluid ounces (fl oz) to ounces (avoirdupois) (oz), 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
1.04318 oz
Density used
1 g/mL (USDA FDC 174158, 1 ml = 1 g)

1 US fluid ounces of water = 1.04318 ounces (avoirdupois). Weights for cups and spoons vary with how the ingredient is measured, so treat this as a close estimate.

The same amount in other weight units
UnitAmount
milligrams29,573.5
grams29.5735
kilograms0.0295735
pounds0.0651985
Show the working
  1. 1 fl oz = 29.5735295625 mL
  2. × 1 g/mL (USDA FDC 174158, 1 ml = 1 g) = 29.5735295625 g
  3. = 1.0431755565 oz

How to convert us fluid ounces to ounces

1 fl oz = 1.04318 oz, so multiply by 1.04318 to go from US fluid ounces to ounces (avoirdupois). Going the other way, 1 oz = 0.958611 fl oz.

oz = fl oz × 1.04318
fl oz = oz × 0.958611

Worked example:

5 fl oz = 147.867647812 mL
× 1 g/mL (USDA FDC 174158, 1 ml = 1 g) = 147.867647812 g
= 5.21587778251 oz

US Fluid Ounces to ounces table

US Fluid OuncesOunces
1 fl oz1.04318 oz
2 fl oz2.08635 oz
3 fl oz3.12953 oz
4 fl oz4.1727 oz
5 fl oz5.21588 oz
6 fl oz6.25905 oz
7 fl oz7.30223 oz
8 fl oz8.3454 oz
9 fl oz9.38858 oz
10 fl oz10.4318 oz
15 fl oz15.6476 oz
20 fl oz20.8635 oz
25 fl oz26.0794 oz
30 fl oz31.2953 oz
40 fl oz41.727 oz
50 fl oz52.1588 oz
75 fl oz78.2382 oz
100 fl oz104.318 oz
250 fl oz260.794 oz
500 fl oz521.588 oz
1000 fl oz1,043.18 oz

About the units

US Fluid Ounces (fl oz)
US fluid ounces, a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).
Ounces (oz)
Ounces (avoirdupois), a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).

Formula version 0.1.0Reviewed