1.000
Liters
Ounces to Liters Converter
Convert fluid ounces to liters and liters to ounces instantly. Supports US and Imperial fluid ounces. See results in mL, cups, tablespoons, gallons, pints, and quarts. Free, private, and works offline.
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Common Conversions
How many oz in a liter?
33.814 fl oz
How many liters in a gallon?
3.785 L
How many oz in a half liter?
16.907 fl oz
How many oz in 2 liters?
67.628 fl oz
Quick Reference Table
| Fluid Ounces | Liters | Milliliters |
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How Many Ounces Are in a Liter?
One liter contains approximately 33.814 US fluid ounces or 35.195 Imperial fluid ounces. This is one of the most commonly searched volume conversions, especially when comparing product sizes. For example, a standard 1-liter bottle of water contains about 33.8 fluid ounces, while a standard US water bottle (16.9 oz) is exactly half a liter (500 mL). Knowing this conversion helps you quickly compare beverage sizes, track daily water intake, and convert between metric and US customary units.
Conversion Formulas
US: 1 fl oz = 0.0295735 L | 1 L = 33.814 fl oz
Imperial: 1 fl oz = 0.0284131 L | 1 L = 35.195 fl oz
Related: 1 L = 1000 mL = 4.227 cups = 2.113 pints = 1.057 quarts
US vs Imperial Fluid Ounces
The US fluid ounce and the Imperial fluid ounce are not the same. A US fluid ounce equals 29.5735 mL, while an Imperial fluid ounce (used in the UK, Canada, and other Commonwealth countries) equals 28.4131 mL. This means an Imperial fluid ounce is slightly smaller than a US fluid ounce. The difference matters most when scaling up large quantities for recipes or industrial use. A US pint contains 16 fl oz (473 mL), while an Imperial pint holds 20 fl oz (568 mL) — a 20% difference. This converter lets you toggle between both systems so your conversions are always accurate.
Common Ounce to Liter Conversions
Here are the conversions people search for most. Eight fluid ounces equals about 0.237 liters (roughly a cup). Sixteen ounces (a US pint) is 0.473 liters. Thirty-two ounces (a quart) equals 0.946 liters, very close to one liter. A full liter is 33.814 oz. Sixty-four ounces (half a gallon) is 1.893 liters, and 128 ounces (a full US gallon) equals 3.785 liters. These reference points make it easy to estimate volumes without a calculator — just remember that 32 oz is about one liter and double or halve from there.
Ounces to Liters for Cooking and Recipes
Cooking across different measurement systems is a common challenge. American recipes use fluid ounces and cups, while European and many international recipes use milliliters and liters. When converting, remember that 1 cup equals 8 fluid ounces (237 mL), so a recipe calling for 2 cups of broth needs 16 oz or about 0.473 liters. For bulk cooking or large batch recipes, converting directly to liters makes measuring easier — just use a metric measuring jug. This converter also shows equivalent values in tablespoons, cups, and gallons so you can use whichever measuring tool you have on hand.