Convert US fluid ounces to metric liters accurately. Perfect for international recipes, travel, and science.
Quick Answer: One US fluid ounce equals 0.0295735 liters (approximately 29.57 ml). To convert oz to liters, multiply by 0.0295735. For example, 33.814 fl oz ≈ 1 liter.
Formula: liters = fl oz × 0.0295735
Liters = Fluid Ounces × 0.0295735
Fluid Ounces = Liters × 33.814
The US fluid ounce is defined as 1/128 of a US gallon. One US gallon equals approximately 3.785 liters, giving us the 0.0295735 factor for individual fluid ounces.
| Fluid Ounces (fl oz) | Liters (L) | Milliliters (ml) |
|---|---|---|
| 1 fl oz | 0.02957 L | 29.57 ml |
| 4 fl oz | 0.11829 L | 118.29 ml |
| 8 fl oz | 0.23659 L | 236.59 ml |
| 12 fl oz | 0.35488 L | 354.88 ml |
| 16 fl oz | 0.47318 L | 473.18 ml |
| 20 fl oz | 0.59147 L | 591.47 ml |
| 32 fl oz | 0.94635 L | 946.35 ml |
| 33.814 fl oz | 1.000 L | 1,000 ml |
| 64 fl oz | 1.89271 L | 1,892.71 ml |
| 128 fl oz | 3.78541 L | 3,785.41 ml |
Good to know: The most common liter-based bottle sizes you'll encounter are 500 ml (≈16.9 fl oz), 1 liter (≈33.8 fl oz), and 1.5 liters (≈50.7 fl oz). Knowing these equivalents helps when shopping for imported beverages.
For official metric conversion references, see the NIST SI Units guide for volume.
All the liquid volume converters you need, in one place.
Convert fluid ounces to US gallons instantly. The most common liquid volume conversion.
Reverse the calculation — convert US gallons back to fluid ounces in seconds.
Convert fluid ounces to quarts — ideal for cooking, canning, and storage containers.