0.4732L
16 fl oz × 0.0295735 = 0.4732 L
One US fluid ounce equals 0.0295735 litres — about 0.0296 L. To convert fluid ounces to litres, multiply the number of ounces by 0.0295735 (US) or 0.0284131 (UK imperial). To go the other way, divide litres by the same constant, or multiply by 33.814 to get US fluid ounces.
Ounces to litres conversion chart
The most-searched fluid ounce values, in US and UK litres. Save, screenshot, or print it for the kitchen.
| Fluid ounces | Litres (US) | Litres (UK) |
|---|---|---|
| 1 fl oz | 0.0296 L | 0.0284 L |
| 2 fl oz | 0.0591 L | 0.0568 L |
| 4 fl oz | 0.1183 L | 0.1137 L |
| 6 fl oz | 0.1774 L | 0.1705 L |
| 8 fl oz | 0.2366 L | 0.2273 L |
| 10 fl oz | 0.2957 L | 0.2841 L |
| 12 fl oz | 0.3549 L | 0.341 L |
| 16 fl oz | 0.4732 L | 0.4546 L |
| 16.9 fl oz | 0.4998 L | 0.4802 L |
| 20 fl oz | 0.5915 L | 0.5683 L |
| 24 fl oz | 0.7098 L | 0.6819 L |
| 32 fl oz | 0.9464 L | 0.9092 L |
| 33.814 fl oz≈ 1 litre | 1 L | 0.9608 L |
| 48 fl oz | 1.4195 L | 1.3638 L |
| 64 fl oz | 1.8927 L | 1.8184 L |
How to convert ounces to litres
The maths is simple once you fix the unit system. For US fluid ounces multiply by 0.0295735; for UK (imperial) fluid ounces multiply by 0.0284131. To reverse it, divide by the same number.
Worked example: 16 fl oz × 0.0295735 = 0.4732 L. So a US pint (16 fl oz) is just under half a litre.
US vs UK (imperial) fluid ounces — the trap
This is where most converters quietly go wrong. The US and UK fluid ounce are different sizes: 1 US fl oz = 29.5735 mL, while 1 UK (imperial) fl oz = 28.4131 mL. The UK ounce is about 4% smaller, so the same ounce figure gives a smaller litre result under the imperial system.
It matters most in recipes. A UK recipe asking for 20 fl oz of milk means 0.568 L (an imperial pint), but reading that as US ounces gives 0.591 L — enough to throw off a bake. Always match the system to where the recipe came from, and use the US / UK toggle above to see both.
Fluid ounces vs weight ounces
Fluid ounces measure volume; weight ounces measure mass. They are not interchangeable, and this converter handles fluid ounces only. If an ingredient is measured by weight — say 8 oz of flour — converting to litres is meaningless. Weight ounces convert to grams instead (1 oz ≈ 28.35 g).
Quick check: if you're pouring a liquid into a jug, it's fluid ounces; if it's sitting on a scale, it's weight.
Common real-world questions
Is 32 oz a litre?
Not quite — 32 US fl oz is 0.946 L, so a US quart is a touch under a litre.
How many 16.9 oz water bottles make a litre?
About two: 2 × 16.9 = 33.8 oz, which is essentially one litre (a 16.9 fl oz bottle is 500 mL).
How many ounces are in a litre?
33.814 US fluid ounces, or 35.195 UK fluid ounces.
How much is 8 oz in litres?
8 US fl oz = 0.237 L, roughly a US cup.
How we calculate these conversions
Every result uses the internationally defined fluid-ounce values, not rounded shortcuts. One US fluid ounce = 29.5735295625 mL (the US gallon, 3.785411784 L, divided by 128), and one UK imperial fluid ounce = 28.4130625 mL (the imperial gallon, 4.54609 L, divided by 160). We keep full precision internally and round only the figure you see.
These definitions come from the national standards bodies that maintain them — the US NIST Office of Weights & Measures for US customary units, and the UK National Physical Laboratory for imperial units. The converter never mixes the two systems — pick US or UK and the matching constant is applied.
Frequently asked questions
Ounces and litres
How many litres is 1 oz?
One US fluid ounce is 0.0296 litres (0.0295735 L exactly). One UK (imperial) fluid ounce is slightly less, 0.0284 litres.
How many ounces are in 1 litre?
A litre holds 33.814 US fluid ounces, or 35.195 UK fluid ounces.
Is 32 oz the same as 1 litre?
No. 32 US fluid ounces is about 0.946 litres — a US quart, just under a full litre.
Is 16 oz 1 litre?
No. 16 US fl oz = 0.473 litres, just under half a litre (a US pint).
Is 8 oz equal to 1 litre?
No. 8 US fl oz = 0.237 litres, roughly a US cup.
Is 64 oz equal to 1 litre?
No. 64 US fl oz = 1.89 litres — closer to two litres than one.
Is 64 oz of water 2 litres?
Almost. 64 US fl oz = 1.89 litres, a little under 2 litres (2 L is 67.6 oz).
Is 1 litre 64 oz?
No. One litre is 33.8 US fl oz; 64 oz is about 1.9 litres.
Is 1 litre 16 oz?
No. One litre = 33.8 US fl oz; 16 oz is only about half a litre.
Is 1 litre 24 oz?
No. One litre = 33.8 US fl oz; 24 oz is about 0.71 litres.
Is 2 litres 60 oz?
No. Two litres = 67.6 US fluid ounces, not 60.
What's the difference between US and UK fluid ounces?
They are different units: a US fl oz is 29.5735 mL, a UK (imperial) fl oz is 28.4131 mL. US and UK recipes are not interchangeable by ounce.
How do I convert oz to litres without a calculator?
Divide the fluid ounces by about 33.8, or multiply by 0.03 for a rough estimate (16 oz × 0.03 ≈ 0.48 L).
How many 16.9 oz water bottles make a litre?
About two. A 16.9 fl oz bottle is 500 mL, so 2 × 16.9 = 33.8 oz ≈ 1 litre.
Does this work for dry or weight ounces?
No. This converter is for fluid (volume) ounces only. Dry or weight ounces measure mass and convert to grams.
Millilitres, cups and tablespoons
What does "oz" stand for?
Ounce. Here it means a fluid ounce (a measure of volume); a weight ounce is a measure of mass.
What is 1 oz equal to?
One US fluid ounce = 29.57 mL = 0.0296 L, about two tablespoons.
What size is 1 oz?
A US fluid ounce is about 29.6 mL — roughly two tablespoons, or a single spirit measure.
How many mL is in 1 oz?
29.57 mL for a US fluid ounce, or 28.41 mL for a UK (imperial) fluid ounce.
Is 8 oz 250 ml?
Close. 8 US fl oz = 237 mL; a metric cup is 250 mL, so they are near but not equal.
How much is an 8 ounce cup in ml?
About 237 mL (8 US fl oz × 29.5735).
How to convert 8 oz to ml?
Multiply by 29.5735: 8 × 29.5735 = 236.6 mL.
Is 100 mL the same as 3 oz?
Roughly. 100 mL = 3.38 US fl oz, a little over 3 ounces.
Is 100 ml under 3 oz?
No. 100 mL = 3.38 fl oz, just over 3 oz — it equals the 3.4 oz cabin-baggage liquid limit.
Is 16 oz the same as 1 cup?
No. A US cup is 8 fl oz, so 16 oz = 2 cups (a US pint).
How many ounces is 1 cup?
8 US fluid ounces (about 237 mL).
How much is 1 cup of water?
A US cup of water is 8 fl oz = 237 mL (0.237 L).
How to measure 1 oz?
One fluid ounce = 2 tablespoons; use a measuring jug or measuring spoons.
Is 250 ml the same as 8 oz?
Close. 250 mL = 8.45 US fl oz, slightly more than 8 ounces.
Is 250 ml 16 oz?
No. 250 mL = 8.45 fl oz; 16 oz is about 473 mL.
Is 8 oz the same as 500 ml?
No. 8 US fl oz = 237 mL; 500 mL is about 16.9 oz.
What is 500 mL in ounces?
16.9 US fluid ounces — exactly half a litre.
Is 500 ml 1 cup of water?
No. 500 mL is about 2 US cups; one US cup is roughly 237 mL.
Water bottles and glasses
How much is 8 ounces of water?
8 US fl oz = 237 mL ≈ 0.24 litres, about one cup.
Is 4 bottles of water 64 oz?
If each bottle is 16 oz, yes — 4 × 16 = 64 oz (1.89 L). Standard 16.9 oz bottles would total 67.6 oz.
How many glasses of water is 64 oz?
Eight 8-ounce glasses (64 ÷ 8), which is 1.89 litres.
Daily water intake
How much water should I drink daily?
A common guideline is about 2 litres a day — roughly 67.6 US fl oz, or eight 8-ounce glasses — but real needs vary with body size, activity and climate. General guidance, not medical advice.
How can I drink more water daily?
Keep a marked bottle nearby (a 16.9 oz bottle is 500 mL, so about four reach 2 litres), have a glass with each meal, and set reminders.
Does tea count as drinking water?
Yes — tea, coffee and most drinks count toward your daily fluids, though plain water is the calorie-free choice.
How much water to drink for high blood pressure?
There's no special amount for blood pressure; usual advice is around 2 litres (≈ 67.6 oz) a day while limiting salt. This is general information, not medical advice — check with your doctor.
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