This converter turns imperial fluid ounces into liters instantly, using the exact factor 1 imperial fluid ounce = 0.0284130625 liters. 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 UK fluid ounce, about 4% smaller than its US counterpart. One cubic decimetre — the everyday metric unit for drinks and fuel.
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
imperial fluid ounces- The amount you are converting, measured in imperial fluid ounces
0.0284130625- The exact number of liters in one imperial fluid ounce
liters- The converted result
How it works, step by step
- Enter the number of imperial fluid ounces you want to convert.
- The value is multiplied by 0.0284130625, the exact conversion factor.
- The result is displayed in liters, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 imperial fluid ounces
Multiply 5 by 0.028413062. That gives 0.142065 liters. A quick sanity check: one imperial fluid ounce is smaller than one liter, so the number should get smaller — and it does.
Converting 72 imperial fluid ounces
72 × 0.028413062 = 2.0457 liters. Working backwards, 2.0457 ÷ 0.028413062 returns 72 imperial fluid ounces, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many liters are in one imperial fluid ounce?
Exactly 0.0284130625. 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 imperial fluid ounces to liters?
Liters = imperial fluid ounces × 0.0284130625. To reverse it, divide instead: imperial fluid ounces = liters ÷ 0.0284130625, which is the same as multiplying by 35.19507973.
Is the imperial fluid ounce bigger than the liter?
No. One imperial fluid ounce is only 0.0284131 of a liter, so the liter is the larger unit.
Why does my answer differ slightly from other imperial-fluid-ounces to liters 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 imperial fluid ounce?
The UK fluid ounce, about 4% smaller than its US counterpart.
What is a liter?
One cubic decimetre — the everyday metric unit for drinks and fuel.
Imperial Fluid Ounces to liters reference table
| Imperial Fluid Ounces | Liters |
|---|---|
| 0.5 fl oz | 0.014207 L |
| 1 fl oz | 0.028413 L |
| 2 fl oz | 0.056826 L |
| 3 fl oz | 0.085239 L |
| 5 fl oz | 0.142065 L |
| 10 fl oz | 0.284131 L |
| 15 fl oz | 0.426196 L |
| 20 fl oz | 0.568261 L |
| 25 fl oz | 0.710327 L |
| 50 fl oz | 1.4207 L |
| 75 fl oz | 2.131 L |
| 100 fl oz | 2.8413 L |
| 250 fl oz | 7.1033 L |
| 500 fl oz | 14.2065 L |
| 1000 fl oz | 28.4131 L |
Exact factor: 1 imperial fluid ounce = 0.0284130625 liters. Values rounded for display.