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US Fluid Ounces to Grams Converter

Convert US fluid ounces (fl oz) to grams (g), 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
29.5735 g
Density used
1 g/mL (USDA FDC 174158, 1 ml = 1 g)
Exact
29.5735295625

1 US fluid ounces of water = 29.5735 grams. 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
kilograms0.0295735
ounces (avoirdupois)1.04318
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. = 29.5735295625 g

How to convert us fluid ounces to grams

1 fl oz = 29.5735 g, so multiply by 29.5735 to go from US fluid ounces to grams. Going the other way, 1 g = 0.033814 fl oz.

g = fl oz × 29.5735
fl oz = g × 0.033814

Worked example:

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

US Fluid Ounces to grams table

US Fluid OuncesGrams
1 fl oz29.5735 g
2 fl oz59.1471 g
3 fl oz88.7206 g
4 fl oz118.294 g
5 fl oz147.868 g
6 fl oz177.441 g
7 fl oz207.015 g
8 fl oz236.588 g
9 fl oz266.162 g
10 fl oz295.735 g
15 fl oz443.603 g
20 fl oz591.471 g
25 fl oz739.338 g
30 fl oz887.206 g
40 fl oz1,182.94 g
50 fl oz1,478.68 g
75 fl oz2,218.01 g
100 fl oz2,957.35 g
250 fl oz7,393.38 g
500 fl oz14,786.8 g
1000 fl oz29,573.5 g

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).
Grams (g)
Grams, a metric unit. Definition: BIPM SI Brochure.

Formula version 0.1.0Reviewed