Fluid Ounces to Liters Converter

About the fl oz to l calculation

One fluid ounce is exactly 0.029574 liters, so converting between them is a single multiplication. Enter any value above and the result updates as you type. The US fluid ounce. Measures volume, not weight — quite separate from the ounce. The metric volume standard — one litre is exactly 1,000 cm³.

Formula

L = fl oz × 0.029574

1 fl oz = 0.029574 L
1 L = 33.814 fl oz

Worked example

To convert 8 fl oz, multiply by 0.029574: 8 × 0.029574 = 0.236588 L.

Frequently asked questions

How many liters are in a fluid ounce?

There are 0.029574 liters in one fluid ounce. To convert any amount, multiply the number of fluid ounces by 0.029574.

How do I convert liters back to fluid ounces?

Divide instead of multiplying, or equivalently multiply by 33.814. One liter is 33.814 fluid ounces.

Is this conversion exact?

Yes. Since the international agreement of 1959, the relationship between fluid ounces and liters is defined exactly rather than measured, so the only rounding here is in how many decimal places we show.

Where is each of these units used?

Fluid Ounces: the US fluid ounce. Measures volume, not weight — quite separate from the ounce. Liters: the metric volume standard — one litre is exactly 1,000 cm³.

Sources

• NIST Special Publication 811 — Guide for the Use of the International System of Units