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⚡ US Fluid Ounces to Imperial Fluid Ounces: the quick answer
1 fl oz = 1.04084 fl oz-uk
1 US fluid ounce equals 1.04084 imperial fluid ounces
To convert US fluid ounces to imperial fluid ounces, multiply the value by 1.04084.
To go the other way, multiply imperial fluid ounces by 0.96076 to get US fluid ounces.
↔ Convert imperial fluid ounces to US fluid ounces instead
🧮 Formula
Every unit here is defined by its volume in cubic meters, so the conversion factor is (cubic meters per US fluid ounce) ÷ (cubic meters per imperial fluid ounce).
📊 US Fluid Ounces to Imperial Fluid Ounces conversion table
✏️ Worked examples
Convert 25 US fluid ounces to imperial fluid ounces
25 fl oz × 1.04084 = 26.0211 fl oz-uk
Try this example →
Convert 250 US fluid ounces to imperial fluid ounces
250 fl oz × 1.04084 = 260.211 fl oz-uk
Try this example →
📘 About these units
US fluid ounce (fl oz). A US fluid ounce is 29.5735 mL, the unit on American drink and food labels.
Imperial fluid ounce (fl oz-uk). An imperial fluid ounce is 28.413 mL, used on British drink labels.
❓ Frequently asked questions
How many imperial fluid ounces are in one US fluid ounce?
There are 1.04084 imperial fluid ounces in one US fluid ounce.
How do I convert US fluid ounces to imperial fluid ounces?
Multiply the number of US fluid ounces by 1.04084. For example, 10 US fluid ounces equal 10.4084 imperial fluid ounces.
How many US fluid ounces are in one imperial fluid ounce?
One imperial fluid ounce equals 0.96076 US fluid ounces.
🔗 More volume conversions
All volume units →