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Convert US fluid ounces to Cubic centimetres

1 US fluid ounce is 29.57 cm³. One US fluid ounce is exactly 29.5735295625 cubic centimetres.

One US fluid ounce is 29.57353 cubic centimetres. To convert US fluid ounces to cubic centimetres, multiply by 29.57353; to go the other way, divide by 29.57353 or multiply by 0.033814023. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 130. Exactly one 128th of a US gallon, which makes it 29.5735295625 ml exactly.

Factor checked against the defining standard · How we check

Cubic centimetres
29.57 cm³
US fluid ounces × 29.57353
1 * 29.5735329.574 cm³

1 US fluid ounce in every volume unit

1 US fluid ounce expressed in every volume unit
UnitValueExact factor
US teaspoons6 tsp× 6
US tablespoons2 tbsp× 2
US fluid ounces (as entered)1 fl oz—
US cups0.125 cup× 0.125
US pints0.0625 pt× 0.0625
US quarts0.03125 qt× 0.03125
US gallons0.0078125 gal× 0.0078125
milliliters29.57352956 ml× 29.5735295625
liters0.02957352956 L× 0.0295735295625
imperial gallons0.006505267067 gal (UK)× 0.00650526706741
imperial quarts0.02602106827 qt (UK)× 0.0260210682697
imperial pints0.05204213654 pt (UK)× 0.0520421365393
imperial fluid ounces1.040842731 fl oz (UK)× 1.04084273079
imperial gills0.2081685462 gi (UK)× 0.208168546157
cubic millimetres29,573.52956 mm³× 29,573.5295625
cubic centimetres29.57352956 cm³× 29.5735295625
cubic inches1.8046875 in³× 1.8046875
cubic feet0.00104437934 ft³× 0.00104437934028
cubic yards0.00003868071631 yd³× 0.0000386807163066
cubic metres0.00002957352956 m³× 0.0000295735295625

Factors are entered by hand from NIST Handbook 130 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert US fluid ounces to cubic centimetres? The converter and the working

  1. 1.Take the measurement in US fluid ounces.
  2. 2.Multiply by 29.57353 — that is how many cubic centimetres fit in one US fluid ounce.
  3. 3.To go back the other way, divide by 29.57353, or multiply by 0.033814023.

Worked example: 25 US fluid ounces to cubic centimetres

Formula
fl oz × 29.57353 = cm³
Arithmetic
25 × 29.57353 = 739.34 cm³
Answer
25 fl oz = 739.34 cm³

The factor is rounded for display; the figure above is computed from the full value.

US fluid ounces to cubic centimetres conversion table

US fluid ounces to cubic centimetres conversion table
US fluid ouncesCubic centimetres
1 fl oz29.57 cm³
2 fl oz59.15 cm³
3 fl oz88.72 cm³
4 fl oz118.29 cm³
5 fl oz147.87 cm³
6 fl oz177.44 cm³
7 fl oz207.01 cm³
8 fl oz236.59 cm³
9 fl oz266.16 cm³
10 fl oz295.74 cm³
12 fl oz354.88 cm³
15 fl oz443.6 cm³
20 fl oz591.47 cm³
25 fl oz739.34 cm³
50 fl oz1,478.68 cm³
100 fl oz2,957.35 cm³
200 fl oz5,914.71 cm³
300 fl oz8,872.06 cm³
500 fl oz14,786.76 cm³
1000 fl oz29,573.53 cm³
2000 fl oz59,147.06 cm³
5000 fl oz147,867.65 cm³
10000 fl oz295,735.3 cm³

What is a US fluid ounce?

Exactly one 128th of a US gallon, which makes it 29.5735295625 ml exactly. The imperial fluid ounce is a different unit at exactly 28.4130625 ml, so a UK recipe calling for 10 fl oz means 284 ml and a US one means 296 ml. It is also a volume, not a weight: an ounce of flour is not a fluid ounce of flour.

What is a cubic centimetre?

A thousandth of a litre, which makes it exactly a millilitre — the same volume under two names. Engine displacement uses cc and medicine uses ml for the identical quantity.

How many cubic centimetres are in a US fluid ounce?

One US fluid ounce is 29.57353 cubic centimetres. Going the other way, one cubic centimetre is 0.033814023 US fluid ounces. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every volume unit here

The whole group — 20 units with their symbols and the size of each one in liters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a US fluid ounce.

Source: NIST Handbook 130 — US customary liquid measure

Cite this page

APA
Rule Calculator. (2026). Convert US fluid ounces to cubic centimetres. Rule Calculator. https://rulecalculators.com/convert/fluid-ounce-to-cubic-centimeter
MLA
"Convert US fluid ounces to cubic centimetres." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/fluid-ounce-to-cubic-centimeter.
Chicago
Rule Calculator. "Convert US fluid ounces to cubic centimetres." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/fluid-ounce-to-cubic-centimeter.

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Questions people actually ask

How many cubic centimetres are in a US fluid ounce?
29.57353. A thousandth of a litre, which makes it exactly a millilitre — the same volume under two names. Engine displacement uses cc and medicine uses ml for the identical quantity.
How do I convert cubic centimetres back to US fluid ounces?
Divide by 29.57353, or multiply by 0.033814023 — they are the same operation.

Other volume conversions

Cubic centimetres to US fluid ounces — the same conversion the other way.

Calculators that work in volume