Imperial fluid ounce to milliliter
Convert Imperial fluid ounce (Imp fl oz) to milliliter (mL). Use an editable volume converter, conversion formula, and reference table.
1 Imp fl oz = 28.4130625 mL
Conversion formula
One Imperial fluid ounce equals 28.4130625 milliliter. Multiply your value in Imperial fluid ounce by this factor to get milliliter. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 Imperial fluid ounce:5 × 28.4130625 = 142.0653125 mL
Conversion table
| Imperial fluid ounce (Imp fl oz) | milliliter (mL) |
|---|---|
| 0.01 | 0.284130625 |
| 0.1 | 2.84130625 |
| 1 | 28.4130625 |
| 2 | 56.826125 |
| 5 | 142.0653125 |
| 10 | 284.130625 |
| 25 | 710.3265625 |
| 50 | 1,420.653125 |
| 100 | 2,841.30625 |
| 1000 | 28,413.0625 |
About these measurements
Volume describes three-dimensional space or liquid capacity.
The base reference used here is the liter. One Imperial fluid ounce is 0.0284130625 base units; one milliliter is 0.001 base units.
Important distinctions
US liquid measures and Imperial measures are different. Dry gallons and recipe cups are excluded.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert Imp fl oz to mL?
Multiply the quantity in Imp fl oz by 28.4130625. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the milliliter to Imperial fluid ounce converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
