This converter turns US fluid ounces into cubic feet instantly, using the exact factor 1 US fluid ounce = 0.00104437934 cubic feet. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
One eighth of a US cup, roughly 29.57 millilitres. The volume of a one-foot cube — used for shipping, refrigerators and natural gas.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
US fluid ounces- The amount you are converting, measured in US fluid ounces
0.00104437934- The exact number of cubic feet in one US fluid ounce
cubic feet- The converted result
How it works, step by step
- Enter the number of US fluid ounces you want to convert.
- The value is multiplied by 0.00104437934, the exact conversion factor.
- The result is displayed in cubic feet, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 US fluid ounces
Multiply 5 by 0.0010443793. That gives 0.005222 cubic feet. A quick sanity check: one US fluid ounce is smaller than one cubic foot, so the number should get smaller — and it does.
Converting 72 US fluid ounces
72 × 0.0010443793 = 0.075195 cubic feet. Working backwards, 0.075195 ÷ 0.0010443793 returns 72 US fluid ounces, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many cubic feet are in one US fluid ounce?
Exactly 0.00104437934. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert US fluid ounces to cubic feet?
Cubic Feet = US fluid ounces × 0.00104437934. To reverse it, divide instead: US fluid ounces = cubic feet ÷ 0.00104437934, which is the same as multiplying by 957.5064935.
Is the US fluid ounce bigger than the cubic foot?
No. One US fluid ounce is only 0.00104438 of a cubic foot, so the cubic foot is the larger unit.
Why does my answer differ slightly from other us-fluid-ounces to cubic-feet converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a US fluid ounce?
One eighth of a US cup, roughly 29.57 millilitres.
What is a cubic foot?
The volume of a one-foot cube — used for shipping, refrigerators and natural gas.
Us Fluid Ounces to cubic feet reference table
| Us Fluid Ounces | Cubic Feet |
|---|---|
| 0.5 fl oz | 0.000522 ft³ |
| 1 fl oz | 0.001044 ft³ |
| 2 fl oz | 0.002089 ft³ |
| 3 fl oz | 0.003133 ft³ |
| 5 fl oz | 0.005222 ft³ |
| 10 fl oz | 0.010444 ft³ |
| 15 fl oz | 0.015666 ft³ |
| 20 fl oz | 0.020888 ft³ |
| 25 fl oz | 0.026109 ft³ |
| 50 fl oz | 0.052219 ft³ |
| 75 fl oz | 0.078328 ft³ |
| 100 fl oz | 0.104438 ft³ |
| 250 fl oz | 0.261095 ft³ |
| 500 fl oz | 0.52219 ft³ |
| 1000 fl oz | 1.0444 ft³ |
Exact factor: 1 US fluid ounce = 0.00104437934 cubic feet. Values rounded for display.