How To Convert US Ounce (fl oz) to Liters (L)
Formula: liters (L) = US fluid ounces (fl oz) × 0.0295735295625
Example: Convert 17 US fl oz to liters.
17 × 0.0295735295625 = 0.5027500026 L
To convert by hand, multiply your US fl oz value by 0.0295735295625.
If you need a quick estimate, you can think of 1 fl oz as about 0.03 L.
For more exact work, keep more decimal places during multiplication, then round at the end.
Quick Answer
1 US fl oz = 0.0295735295625 L
- 8 US fl oz = 0.2365882365 L
- 12 US fl oz = 0.3548823548 L
- 16 US fl oz = 0.4731764730 L
Conversion Formula
liters (L) = US fluid ounces (fl oz) × 0.0295735295625
This means every 1 US fluid ounce is exactly 0.0295735295625 liters. So you take the number of US fl oz you have, multiply it by 0.0295735295625, and the result is in liters.
- Write down your value in US fl oz.
- Multiply it by 0.0295735295625.
- Round the final answer to the decimal places you need.
US fluid ounce
A US fluid ounce is a unit for measuring liquid volume in the United States customary system. Its symbol is fl oz.
It comes from older English volume measures and became standardized in the US through the definition of the US gallon. Today it is widely used on food labels, recipes, and drink sizes in the United States.
- Measuring drinks like soda, juice, and bottled water
- Cooking and baking recipes (US-based)
- Nutrition labels for beverages
- Medicine dosing cups and liquid supplements
- Personal care products like shampoo and lotion
Liter
A liter is a metric unit of volume used around the world. Its symbol is L.
The liter is closely tied to the metric system and is commonly used for liquids in science, trade, and daily life. It is accepted for use with SI and is a standard unit on most international packaging.
- Water and soft drink bottle sizes
- Fuel amounts (like gasoline or petrol) in many countries
- Science labs and chemistry measurements
- Medical and hospital fluid tracking
- Cooking measurements in metric recipes
Is this Conversion of US Ounce (fl oz) To Liters (L) Accurate?
Yes. This conversion is based on the exact definition relationship: 1 US fl oz = 1/128 US gallon, and the US gallon is defined as exactly 3.785411784 L. That makes 1 US fl oz = 0.0295735295625 L exactly.
Because the value comes from established measurement standards used in engineering, education, labeling, and scientific references, it is reliable for homework, cooking, lab work, and general use. For how we handle rounding and standards, read more on accuracy standards.
Real Life Examples
US fluid ounces show up often on US packaging, while liters are common in metric countries and in science. Here are practical conversions you can use.
- A 12 fl oz soda can: 12 × 0.0295735295625 = 0.3548823548 L. That is about 0.355 L.
- A 16 fl oz water bottle: 16 × 0.0295735295625 = 0.4731764730 L. That is just under 0.5 L.
- A 24 fl oz sports drink: 24 × 0.0295735295625 = 0.7097647095 L. Useful when comparing to 0.75 L bottles.
- A 32 fl oz smoothie cup: 32 × 0.0295735295625 = 0.9463529460 L. That is close to 1 liter.
- A 64 fl oz “half gallon” jug size: 64 × 0.0295735295625 = 1.8927058920 L. Helpful for tracking daily water in liters.
- A 5 fl oz small bottle (travel size): 5 × 0.0295735295625 = 0.1478676478 L. That is about 148 mL.
- A 100 fl oz large drink dispenser: 100 × 0.0295735295625 = 2.9573529563 L. Useful for party planning in liters.
Quick Tips
- For a fast estimate, use 1 fl oz ≈ 0.03 L (about 30 mL).
- 16 fl oz ≈ 0.47 L, so it is close to a half liter.
- 32 fl oz ≈ 0.95 L, so it is close to 1 liter.
- 1 L ≈ 33.8140227018 fl oz, helpful when converting the other way.
- For accuracy, multiply first, then round at the end.
- Make sure you mean US fl oz, UK fl oz uses a different size.