This converter turns cubic feet into imperial fluid ounces instantly, using the exact factor 1 cubic foot = 996.6136734 imperial fluid ounces. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
The volume of a one-foot cube — used for shipping, refrigerators and natural gas. The UK fluid ounce, about 4% smaller than its US counterpart.
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
cubic feet- The amount you are converting, measured in cubic feet
996.6136734- The exact number of imperial fluid ounces in one cubic foot
imperial fluid ounces- The converted result
How it works, step by step
- Enter the number of cubic feet you want to convert.
- The value is multiplied by 996.6136734, the exact conversion factor.
- The result is displayed in imperial fluid ounces, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 cubic feet
Multiply 5 by 996.61367. That gives 4,983.07 imperial fluid ounces. A quick sanity check: one cubic foot is larger than one imperial fluid ounce, so the number should get bigger — and it does.
Converting 72 cubic feet
72 × 996.61367 = 71,756.18 imperial fluid ounces. Working backwards, 71,756.18 ÷ 996.61367 returns 72 cubic feet, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many imperial fluid ounces are in one cubic foot?
Exactly 996.6136734. 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 cubic feet to imperial fluid ounces?
Imperial Fluid Ounces = cubic feet × 996.6136734. To reverse it, divide instead: cubic feet = imperial fluid ounces ÷ 996.6136734, which is the same as multiplying by 0.001003397833.
Is the cubic foot bigger than the imperial fluid ounce?
Yes. One cubic foot equals 996.614 imperial fluid ounces, so it is the larger unit.
Why does my answer differ slightly from other cubic-feet to imperial-fluid-ounces 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 cubic foot?
The volume of a one-foot cube — used for shipping, refrigerators and natural gas.
What is a imperial fluid ounce?
The UK fluid ounce, about 4% smaller than its US counterpart.
Cubic Feet to imperial fluid ounces reference table
| Cubic Feet | Imperial Fluid Ounces |
|---|---|
| 0.5 ft³ | 498.3068 fl oz |
| 1 ft³ | 996.6137 fl oz |
| 2 ft³ | 1,993.23 fl oz |
| 3 ft³ | 2,989.84 fl oz |
| 5 ft³ | 4,983.07 fl oz |
| 10 ft³ | 9,966.14 fl oz |
| 15 ft³ | 14,949.21 fl oz |
| 20 ft³ | 19,932.27 fl oz |
| 25 ft³ | 24,915.34 fl oz |
| 50 ft³ | 49,830.68 fl oz |
| 75 ft³ | 74,746.03 fl oz |
| 100 ft³ | 99,661.37 fl oz |
| 250 ft³ | 249,153.42 fl oz |
| 500 ft³ | 498,306.84 fl oz |
| 1000 ft³ | 996,613.67 fl oz |
Exact factor: 1 cubic foot = 996.6136734 imperial fluid ounces. Values rounded for display.