Ounce to Liter Converter: Convert Fluid Ounces (oz) to Liters (L)
Convert fluid ounces (U.S. oz) to liters quickly and accurately using this free online tool. Ideal for cooking, hydration tracking, medical usage, and scientific applications.
Understanding Fluid Ounces and Liters
Fluid ounces (oz) and liters (L) are both units used to measure liquid volume. Fluid ounces are part of the U.S. customary and British imperial systems, while liters are part of the metric system. The U.S. fluid ounce is commonly used in recipes, beverages, and nutritional labels. Liters are used more widely around the world and are the standard unit in most countries for measuring fluids.
The key conversion to remember is: 1 U.S. fluid ounce = 0.0295735 liters
Why Convert Ounces to Liters?
Ounces are commonly used in the United States, while the rest of the world relies on liters. If you're reading a U.S. recipe but your measuring jug uses liters, or you're converting a hydration goal into the metric system, you'll need to convert ounces to liters. Similarly, if you're working in healthcare, science, or international shipping, volume unit conversions are critical for accuracy.
How to Convert oz to L
The formula is straightforward:
Liters = Ounces × 0.0295735
For example:
- 8 oz × 0.0295735 = 0.236588 L
- 16 oz × 0.0295735 = 0.473176 L
- 32 oz × 0.0295735 = 0.946352 L
Common Ounce to Liter Conversions
| Ounces (oz) | Liters (L) |
|---|---|
| 8 oz | 0.2366 L |
| 12 oz | 0.3550 L |
| 16 oz | 0.4732 L |
| 32 oz | 0.9464 L |
| 64 oz | 1.8927 L |
U.S. vs. Imperial Ounces
It’s important to distinguish:
- U.S. fluid ounce: 1 oz = 29.5735 mL
- Imperial fluid ounce: 1 oz = 28.4131 mL
This converter uses the U.S. ounce. If you are using an imperial fluid ounce, use a different conversion factor (1 oz = 0.0284131 liters).
Practical Uses for oz to Liter Conversion
- Cooking and Recipes: Convert fluid ounces in American recipes to liters if using metric tools.
- Health and Hydration: Water intake is often tracked in oz. Convert to liters to meet daily hydration goals using metric bottles.
- Medicine and Science: IV solutions, lab experiments, and prescriptions may require accurate fluid measurements across unit systems.
- Travel and Packaging: Understand limits on carry-on liquids in international travel (often listed in ounces) and convert them to liters or milliliters.
Tips for Accurate Conversion
- Always confirm whether you’re using U.S. or imperial fluid ounces.
- Use two decimal places for general use, but use four or more for scientific accuracy.
- Use calibrated tools when exact volumes matter—especially in scientific or medical settings.
FAQs
Q: How many liters are in 1 U.S. fluid ounce?
1 U.S. fluid ounce = 0.0295735 liters.
Q: Is 1 liter equal to 32 ounces?
Not exactly. 32 U.S. ounces = 0.9464 liters. To reach 1 liter, you need approximately 33.814 ounces.
Q: Can I use this tool for imperial ounces?
This converter uses the U.S. fluid ounce. For imperial ounces, use a conversion factor of 0.0284131.
Q: How accurate is this conversion?
The result is precise to 7 decimal places, using the standard conversion factor defined by the U.S. NIST.
Final Thoughts
Converting fluid ounces to liters is a common need for travelers, cooks, medical professionals, and scientists. Whether you're adjusting your daily water intake, measuring ingredients for an international recipe, or recording data for an experiment, this Ounce to Liter Converter gives you a fast, accurate, and reliable way to switch between these units. Bookmark this page for easy reference whenever you're working with fluid volume measurements.