How Many Ounces Are in a Liter?
Quick Answer: 33.81 US fluid ounces in 1 liter · 67.63 fl oz in 2 liters · 16.91 fl oz in 500 mL
At a glance
- 1 liter = 33.81 US fl oz (35.20 Imperial fl oz)
- 2-liter bottle = 67.63 US fl oz (standard large soda bottle)
- 500 mL bottle = 16.91 US fl oz (the usual “16.9 oz” water bottle)
A liter is 33.81 US fluid ounces. Not 32. Not 35. The number looks awkward because you’re converting between two different systems: metric liters and US customary fluid ounces. That’s why this page is less about a neat kitchen ratio and more about the bottle sizes you actually see in stores.
How many ounces in 1 liter?
liter → fluid ounce Quick Converter
Need more features? Try our complete liter to fluid ounce converter.
1 liter on the fluid ounce scale
1 liter = 33.81 fl oz
A liter of what? Quick answers for the bottles you actually buy
Unlike “cups in a quart,” this query usually comes from labels: water, soda, wine, liquor, broth, imported recipes. So the useful comparison isn’t ingredient density. It’s packaging.
| What you’re holding | Metric size | US fl oz | Quick note |
|---|---|---|---|
| Small water bottle | 500 mL | 16.91 | The usual “16.9 oz” label. |
| Wine bottle | 750 mL | 25.36 | Standard wine size. |
| Broth or juice carton | 1 liter | 33.81 | Slightly more than 1 US quart. |
| Large water bottle | 1.5 liters | 50.72 | About 6⅓ US cups. |
| Liquor handle | 1.75 liters | 59.17 | Common US spirits size. |
| Large soda bottle | 2 liters | 67.63 | A little over 5 standard 12 oz cans. |
Need weight instead? “How much does 1 liter of honey weigh?” is a density question, not a volume question. Use our cooking weight-to-volume tools for that.
Ounces vs fluid ounces — this is the trap
When you ask “how many ounces in a liter,” the correct unit is almost always fluid ounces. A liter measures volume. Plain ounces measure weight.
- 1 liter = 33.81 US fluid ounces → volume
- 1 liter of water ≈ 35.27 ounces by weight → mass
- 1 liter of oil weighs less than water, so the weight-ounce number changes again
- If the bottle label is liquid, “oz” in US grocery context usually means fl oz, even when “fluid” is omitted
That’s why a 1-liter bottle is 33.81 fl oz, but a 1-liter bag of flour is not “33.81 ounces.” Same word. Different unit family.
Did you know? The familiar US “16.9 oz” water bottle is just a rounded 500 mL bottle. Same bottle, two labeling systems.
A 2-liter soda bottle holds 67.63 fl oz, which is a little more than 5 standard 12-ounce cans. That’s why a single 2-liter often covers a small pizza night but not a full party.
How many liters are in an ounce?
The reverse conversion is small: 1 US fluid ounce = 0.02957 liters, or 29.57 mL. For quick mental math, 1 fl oz ≈ 30 mL works well enough in the kitchen.
That means:
- 8 fl oz ≈ 0.237 L
- 16.9 fl oz ≈ 0.5 L
- 32 fl oz ≈ 0.946 L, which is why a liter feels slightly larger than a US quart
How many ounces in a 2-liter bottle?
A 2-liter bottle holds 67.63 US fluid ounces. That’s the practical sub-query people search most, because 2-liter soda bottles are everywhere in the US.
- 2 liters = 67.63 fl oz = about 8½ US cups
- 1.75 liters = 59.17 fl oz = the common liquor handle
- 1.5 liters = 50.72 fl oz = large water bottle size
- 500 mL = 16.91 fl oz = the standard “16.9 oz” bottle
If you’re buying drinks for a group, a 2-liter bottle gives you about 5 generous 12-ounce pours, or 8 to 10 smaller cups over ice.
Common liter amounts
| Metric amount | US fl oz | US cups | US quarts |
|---|---|---|---|
| 250 mL | 8.45 | 1.06 | 0.26 |
| 500 mL | 16.91 | 2.11 | 0.53 |
| 750 mL | 25.36 | 3.17 | 0.79 |
| 1 liter | 33.81 | 4.23 | 1.06 |
| 1.5 liters | 50.72 | 6.34 | 1.59 |
| 1.75 liters | 59.17 | 7.40 | 1.85 |
| 2 liters | 67.63 | 8.45 | 2.11 |
The word-order gotcha matters here too:
- ounces in half a liter = 16.91 fl oz
- liters in half an ounce ≈ 0.015 L = about 15 mL
Formula
Reverse it by dividing fluid ounces by 33.8140227. In milliliters, the same conversion is even easier: divide mL by 29.57 to get US fluid ounces.
Liters to Fluid Ounces Conversion Table
| Liters | US fl oz | Imperial fl oz | Milliliters |
|---|---|---|---|
| 0.1 | 3.38 | 3.52 | 100 |
| 0.25 | 8.45 | 8.80 | 250 |
| 0.5 | 16.91 | 17.60 | 500 |
| 0.75 | 25.36 | 26.40 | 750 |
| 1 | 33.81 | 35.20 | 1,000 |
| 1.25 | 42.27 | 43.99 | 1,250 |
| 1.5 | 50.72 | 52.79 | 1,500 |
| 1.75 | 59.17 | 61.59 | 1,750 |
| 2 | 67.63 | 70.39 | 2,000 |
| 3 | 101.44 | 105.59 | 3,000 |
| 5 | 169.07 | 175.98 | 5,000 |
| 10 | 338.14 | 351.95 | 10,000 |
Why the math isn’t clean
This conversion looks messier than quart, pint, and cup because the units come from different systems. A liter is metric and equals exactly 1,000 mL. A US fluid ounce belongs to the US customary ladder, where:
That ladder is internally neat. The awkward number only appears when you cross from liters into US fluid ounces. One liter ends up a little larger than 1 US quart, which is why 1 liter = 33.81 fl oz instead of 32.
UK note: if you’re dealing with an older British recipe or a UK label, the Imperial fluid ounce is smaller than the US one. That’s why 1 liter = 35.20 Imperial fl oz, not 33.81. Modern UK recipes usually use milliliters directly, so you can ignore the Imperial figure unless the source explicitly says “fl oz” in a UK context.
How to measure accurately
Liquids in a measuring cup
- Set the cup on a flat surface and read at eye level. Looking down from above can push you off by more than you think.
- If you’re converting from liters to cups for cooking, it’s usually better to stay in milliliters than to chase decimal fluid ounces.
Reading bottles and cartons
- Packaged drinks often round the US number: 500 mL becomes 16.9 fl oz, not 16.907.
- Imported products may show both mL and fl oz. When they disagree slightly, trust the metric size first. It is usually the primary fill standard.
Frequently Asked Questions
How many ounces are in a liter?
There are 33.814 US fluid ounces in 1 liter. Most people round that to 33.8 or 34 fl oz.
How many ounces in a 2-liter bottle?
A 2-liter bottle holds 67.63 US fluid ounces. That is about 8½ US cups or a little over 5 standard 12-ounce cans.
How many ounces in a 500 mL bottle?
A 500 mL bottle holds 16.91 US fluid ounces. That is why many water bottles in the US say 16.9 fl oz on the label.
How many ounces are in a 1.75 liter bottle?
A 1.75 L bottle holds 59.17 US fluid ounces. That is the standard “handle” size for liquor in the US.
How many ounces in a liter of water?
By volume, 1 liter of water is still 33.814 US fluid ounces. By weight, 1 liter of water is about 35.27 ounces because weight ounces and fluid ounces are different units.
How many liters are in 1 ounce?
1 US fluid ounce is 0.02957 liters, or 29.57 milliliters. A quick reverse estimate is 1 fl oz ≈ 30 mL.
What is the difference between ounces in half a liter and liters in half an ounce?
They are reverse questions. Half a liter is 16.91 US fluid ounces. Half a US fluid ounce is only about 15 mL, or 0.015 liters.
Related Cooking Conversions
- How many ounces in a gallon? — 128 fl oz
- How many ounces in a quart? — 32 fl oz
- How many ounces in a pint? — 16 fl oz
- How many ounces in a cup? — 8 fl oz
- Liters to ounces converter — interactive conversion
- Cooking weight and volume tools — density-based ingredient conversions
- All cooking measurement pages
Methodology: this page answers volume-to-volume only. US values are based on 1 US fluid ounce = 29.5735295625 mL and rounded for readability in the visible tables. Packaging examples such as 500 mL, 750 mL, 1.75 L, and 2 L were chosen because they match the strongest search sub-intents in the keyword set.