Fluid Ounces to Liters Converter
Convert US fluid ounces (fl oz) to liters (L)
Fluid Ounce (US)
Definition: The US fluid ounce (symbol: fl oz) is a unit of volume used for measuring liquids. One US fluid ounce equals exactly 29.5735 milliliters or 0.0295735 liters. There are 2 tablespoons in 1 fluid ounce, 8 fluid ounces in 1 cup, and 128 fluid ounces in 1 gallon. Important: Fluid ounces measure volume, not weight. They are different from ounces (oz) which measure weight.
History/origin: The fluid ounce was originally based on the volume occupied by one ounce of water. The US fluid ounce was standardized in 1959 as exactly 29.5735 milliliters, which is approximately 4% smaller than the imperial fluid ounce used in the UK.
Current use: The US fluid ounce is commonly used in the United States for measuring beverages, cooking ingredients, medicine dosages, and nutrition labels. It's the standard unit on US food packaging and recipes. Soft drinks, juice boxes, water bottles, and many beverages display their volume in fluid ounces. Converting fluid ounces to liters is essential for international recipe conversions and understanding metric measurements.
Liter
Definition: The liter (symbol: L or l) is a metric unit of volume equal to one cubic decimeter (1 dm³). One liter equals approximately 33.814 US fluid ounces. The liter is part of the International System of Units (SI) and is the standard unit for measuring liquid volumes worldwide.
History/origin: The liter was first defined in 1795 during the French Revolution as one cubic decimeter. The name comes from the French "litron," an old measure of capacity. Since 1964, the liter has been defined as exactly one cubic decimeter (1,000 cubic centimeters or 1,000 milliliters).
Current use: The liter is used worldwide for measuring liquid volumes, including beverages, fuel, cooking liquids, and most liquid measurements in countries using the metric system. It's the standard unit for larger liquid quantities globally, except in the United States where gallons, quarts, and fluid ounces remain prevalent. Converting US fluid ounces to liters is essential for international recipes and metric measurements.
Fluid Ounces to Liters Conversion Table
| Fluid Ounces [fl oz] | Liters [L] |
|---|---|
| 1 fl oz | 0.0296 L |
| 8 fl oz | 0.2366 L |
| 16 fl oz | 0.4732 L |
| 24 fl oz | 0.7098 L |
| 32 fl oz | 0.9464 L |
| 33.814 fl oz | 1.000 L |
| 64 fl oz | 1.8927 L |
| 128 fl oz | 3.7854 L |
| 256 fl oz | 7.5708 L |
How to Convert Fluid Ounces to Liters
Formula:
1 fl oz (US) = 0.0295735 L
1 L = 33.814 fl oz (US)
L = fl oz × 0.0295735
Quick Approximation:
Divide fl oz by 34 for a rough estimate in liters
Or think: About 34 fl oz ≈ 1 liter
Common Conversions:
1 fl oz = 0.0296 L (29.6 mL)
8 fl oz = 0.2366 L (1 cup, 237 mL)
16 fl oz = 0.4732 L (1 pint, 473 mL)
32 fl oz = 0.9464 L (1 quart, 946 mL)
33.814 fl oz = 1.000 L (exactly)
128 fl oz = 3.7854 L (1 gallon)
Useful Relationships:
1 fluid ounce = 0.0296 L = 29.574 mL = 2 tbsp
1 liter = 33.814 fl oz = 4.227 cups = 2.113 pints
1 cup (8 fl oz) = 0.2366 L = 236.6 mL
1 gallon (128 fl oz) = 3.7854 L
Examples:
Convert 8 fluid ounces to liters:
8 fl oz × 0.0296 = 0.2366 L
This is approximately 0.24 liters (1 cup)
Convert 16 fluid ounces to liters:
16 fl oz × 0.0296 = 0.4732 L
This is approximately 0.47 liters (1 pint)
Convert 32 fluid ounces to liters:
32 fl oz × 0.0296 = 0.9464 L
This is approximately 0.95 liters (1 quart, almost 1 liter)
Convert 33.814 fluid ounces to liters:
33.814 fl oz × 0.0296 = 1.000 L
This is exactly 1 liter
Important Note:
Fluid ounces (volume) ≠ Ounces (weight)
This converter uses fluid ounces (fl oz) for volume measurement, NOT weight ounces (oz). They are completely different units and should not be confused.