How many liters are in 1 US fluid ounce?

One US fluid ounce equals exactly 0.0295735295625 liters (commonly rounded to 0.02957 L or about 29.57 ml).

How many liters are in 1 imperial fluid ounce?

One imperial (UK) fluid ounce equals exactly 0.0284130625 liters (commonly rounded to 0.02841 L).

How do I convert fl oz to liters manually?

Multiply US fl oz by 0.0295735, or multiply imperial fl oz by 0.0284131. For example, 32 US fl oz × 0.0295735 = 0.9463 L.

How many fl oz are in a liter?

There are approximately 33.814 US fluid ounces in one liter, or about 35.195 imperial fluid ounces in one liter.

Is a 16 fl oz bottle close to half a liter?

Yes. 16 US fl oz equals about 0.4732 L, which is close to the common 500 ml (0.5 L) bottle size but not exactly half a liter.

What is the difference between US and imperial fluid ounces?

The US fluid ounce is based on the US gallon (128 fl oz = 3.785 L), while the imperial fluid ounce is based on the imperial gallon (160 fl oz = 4.546 L). The US fl oz is about 4% larger than the imperial fl oz.

Fluid Ounces to Liters Converter

Convert US or imperial fluid ounces to liters instantly, with reverse conversion and a reference table.

Fluid Ounces to Liters

Fluid Ounce Type

1 US fl oz = 0.0295735 L

Fluid Ounces (fl oz)

Result — Liters (L)

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Or enter Liters to get fl oz

Result — Fluid Ounces (fl oz) —

Quick Reference Table

Showing US fl oz values

fl oz	Liters (L)	Common size

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Summary

This converter turns fluid ounces into liters using the correct factor for either the US customary system (1 fl oz = 0.0295735 L) or the imperial system used in the UK and Canada (1 fl oz = 0.0284131 L). Enter any value to get an instant result, use the reverse field to go from liters back to fl oz, and consult the quick-reference table for common volumes.

How it works

Enter the number of fluid ounces in the input field.
Select US fl oz or imperial fl oz depending on your measurement system.
The equivalent liter value appears instantly below the input.
Use the reverse field to convert liters back to fluid ounces.
Consult the quick-reference table for frequently used volumes.

Use cases

Convert beverage serving sizes from fl oz to liters for nutrition labels.
Scale up recipes that list ingredients in fl oz into metric liter quantities.
Compare bottle and container capacities when shopping internationally.
Convert liquid medication dosages from fl oz to liters for lab calculations.
Help travelers understand fluid limits stated in fl oz when flying.
Cross-check US and UK product volumes listed in different fl oz standards.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu