Why Convert US Fluid Ounces to Milliliters?
Converting between us fluid ounces (fl oz (US)) and milliliters (mL) is one of the most common volume conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert fl oz (US) to mL saves time and prevents errors.
Volume conversions between fl oz (US) and mL are vital for cooking, travel, and automotive contexts. The TSA 3-1-1 rule limits carry-on liquids to 100 mL (3.4 fl oz) containers — a conversion every international traveler needs. In cooking, US recipes use cups and tablespoons while metric recipes use milliliters. For automotive purposes, fuel tank capacity is measured in liters in most countries but gallons in the US.
How to Convert US Fluid Ounces to Milliliters
To convert us fluid ounces to milliliters, use the following formula:
mL = fl oz (US) × 29.57352956
Example: 1 fl oz (US) = 29.57352956 mL
For example, 5 fl oz (US) = 147.8676478 mL, 10 fl oz (US) = 295.7352956 mL, and 100 fl oz (US) = 2957.352956 mL. Our calculator above performs this conversion instantly with full precision — no rounding errors.
Common Use Cases
- Standard US soda can (12 fl oz): 12 fl oz (US) = 354.8823547 mL
- US pint glass of beer: 16 fl oz (US) = 473.176473 mL
- Standard glass of water (8 fl oz): 8 fl oz (US) = 236.5882365 mL
- Shot of espresso (≈1 fl oz): 1 fl oz (US) = 29.57352956 mL
Common Mistakes to Avoid
- US vs UK gallons: A US gallon (3.785 L) is smaller than a UK gallon (4.546 L). Always specify which system you're using.
- Fluid ounces vary: US fluid ounce ≠ UK fluid ounce. This converter uses US measures unless specified as UK.
- Cup measurement inconsistency: A US cup = 236.6 mL, metric cup = 250 mL, Japanese cup = 200 mL. Always verify which standard your recipe uses.
Pro Tips
- Memorize the factor: 1 fl oz (US) = 29.57352956 mL. For quick mental math, remember this base conversion.
- Quick reference: 5 fl oz (US) = 147.8676478 mL · 10 fl oz (US) = 295.7352956 mL · 25 fl oz (US) = 739.3382391 mL · 50 fl oz (US) = 1478.676478 mL · 100 fl oz (US) = 2957.352956 mL
- Bookmark this page: Save this converter for instant access. It works offline once loaded — no internet needed.
US Fluid Ounces to Milliliters Conversion Table
| fl oz (US) | mL |
|---|---|
| 0.01 fl oz (US) | 0.2957352956 mL |
| 0.1 fl oz (US) | 2.957352956 mL |
| 0.5 fl oz (US) | 14.78676478 mL |
| 1 fl oz (US) | 29.57352956 mL |
| 2 fl oz (US) | 59.14705912 mL |
| 5 fl oz (US) | 147.8676478 mL |
| 10 fl oz (US) | 295.7352956 mL |
| 20 fl oz (US) | 591.4705912 mL |
| 50 fl oz (US) | 1478.676478 mL |
| 100 fl oz (US) | 2957.352956 mL |
| 500 fl oz (US) | 14786.76478 mL |
| 1000 fl oz (US) | 29573.52956 mL |
All values in this table are mathematically exact per NIST SP 811.