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Convert Imperial fluid ounces to Cubic feet

1 imperial fluid ounce is 0.001003 ft³. One imperial fluid ounce is exactly 0.00100339783272 cubic feet.

One imperial fluid ounce is 0.0010033978 cubic feet. To convert imperial fluid ounces to cubic feet, multiply by 0.0010033978; to go the other way, divide by 0.0010033978 or multiply by 996.61367. 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. One 160th of an imperial gallon, 28.4130625 ml exactly.

Factor checked against the defining standard · How we check

Cubic feet
0.001003 ft³
Imperial fluid ounces × 0.0010033978
1 * 0.00100340.001 ft³

1 imperial fluid ounce in every volume unit

1 imperial fluid ounce expressed in every volume unit
UnitValueExact factor
US teaspoons5.764559642 tsp× 5.76455964242
US tablespoons1.921519881 tbsp× 1.92151988081
US fluid ounces0.9607599404 fl oz× 0.960759940404
US cups0.1200949926 cup× 0.12009499255
US pints0.06004749628 pt× 0.0600474962752
US quarts0.03002374814 qt× 0.0300237481376
US gallons0.007505937034 gal× 0.00750593703441
milliliters28.4130625 ml× 28.4130625
liters0.0284130625 L× 0.0284130625
imperial gallons0.00625 gal (UK)× 0.00625
imperial quarts0.025 qt (UK)× 0.025
imperial pints0.05 pt (UK)× 0.05
imperial fluid ounces (as entered)1 fl oz (UK)—
imperial gills0.2 gi (UK)× 0.2
cubic millimetres28,413.0625 mm³× 28,413.0625
cubic centimetres28.4130625 cm³× 28.4130625
cubic inches1.733871455 in³× 1.73387145495
cubic feet0.001003397833 ft³× 0.00100339783272
cubic yards0.00003716288269 yd³× 0.0000371628826935
cubic metres0.0000284130625 m³× 0.0000284130625

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 imperial fluid ounces to cubic feet? The converter and the working

  1. 1.Take the measurement in imperial fluid ounces.
  2. 2.Multiply by 0.0010033978 — that is how many cubic feet fit in one imperial fluid ounce.
  3. 3.To go back the other way, divide by 0.0010033978, or multiply by 996.61367.

Worked example: 25 imperial fluid ounces to cubic feet

Formula
fl oz (UK) × 0.0010033978 = ft³
Arithmetic
25 × 0.0010033978 = 0.03 ft³
Answer
25 fl oz (UK) = 0.03 ft³

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

Imperial fluid ounces to cubic feet conversion table

Imperial fluid ounces to cubic feet conversion table
Imperial fluid ouncesCubic feet
1 fl oz (UK)0.001003 ft³
2 fl oz (UK)0.002007 ft³
3 fl oz (UK)0.00301 ft³
4 fl oz (UK)0.004014 ft³
5 fl oz (UK)0.01 ft³
6 fl oz (UK)0.01 ft³
7 fl oz (UK)0.01 ft³
8 fl oz (UK)0.01 ft³
9 fl oz (UK)0.01 ft³
10 fl oz (UK)0.01 ft³
12 fl oz (UK)0.01 ft³
15 fl oz (UK)0.02 ft³
20 fl oz (UK)0.02 ft³
25 fl oz (UK)0.03 ft³
50 fl oz (UK)0.05 ft³
100 fl oz (UK)0.1 ft³
200 fl oz (UK)0.2 ft³
300 fl oz (UK)0.3 ft³
500 fl oz (UK)0.5 ft³
1000 fl oz (UK)1 ft³
2000 fl oz (UK)2.01 ft³
5000 fl oz (UK)5.02 ft³
10000 fl oz (UK)10.03 ft³

What is an imperial fluid ounce?

One 160th of an imperial gallon, 28.4130625 ml exactly. The US fluid ounce is one 128th of a smaller gallon at 29.57 ml, so the two ounces differ by about 4% in the opposite direction to the gallons.

What is a cubic foot?

Exactly 28.316846592 litres, or 7.48 US gallons. The working unit of natural gas billing, air flow and refrigerator capacity in the US.

How many cubic feet are in an imperial fluid ounce?

One imperial fluid ounce is 0.0010033978 cubic feet. Going the other way, one cubic foot is 996.61367 imperial 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 an imperial fluid ounce.

Source: NIST Handbook 130 — US customary liquid measure

Cite this page

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

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Questions people actually ask

How many cubic feet are in an imperial fluid ounce?
0.0010033978. Exactly 28.316846592 litres, or 7.48 US gallons. The working unit of natural gas billing, air flow and refrigerator capacity in the US.
How do I convert cubic feet back to imperial fluid ounces?
Divide by 0.0010033978, or multiply by 996.61367 — they are the same operation.

Other volume conversions

Cubic feet to imperial fluid ounces — the same conversion the other way.

Calculators that work in volume