conversions
How Many mL in a Liter
Last updated: May 31, 2026
Written by Blake Boege
An mL-in-a-liter page performs conversions between standard metric volume increments. By prefix definition, 'milli-' signifies one-thousandth, meaning exactly 1,000 milliliters (mL) make up 1 liter (L). This relationship is a fundamental constant in the metric system used globally for liquids.
Calculate metric volume conversions between milliliters and liters. Read standard conversions and check the metric volume chart.
Quick Answer
Find the exact number of milliliters in a liter and run quick volume conversions.
How Many mL in a Liter?
There are exactly 1,000 milliliters (mL) in a liter.
This standard metric conversion is constant worldwide and applies to all liquids.
Formula: 1 Liter = 1,000 Milliliters (mL)
Liters to Milliliters Conversion Chart
| Liters (L) | Milliliters (mL) |
|---|---|
| 0.1 L (100 mL) | 100 mL |
| 0.25 L (Quarter Liter) | 250 mL |
| 0.5 L (Half Liter) | 500 mL |
| 1 L | 1,000 mL |
| 1.5 L | 1,500 mL |
| 2 L | 2,000 mL |
| 5 L | 5,000 mL |
Examples
1 Liter
1,000 mL
0.5 Liters (Half Liter)
500 mL
2 Liters
2,000 mL
How it works
The milliliter is a metric unit of volume, defined as exactly one-thousandth of a liter:
1 Liter (L) = 1,000 Milliliters (mL)
Formula: mL = Liters × 1,000
Converting Liters to Milliliters (L to mL)
Since 1 liter contains exactly 1,000 milliliters, you can convert from L to mL by multiplying by 1,000.
Example: 3.5 liters = 3.5 × 1,000 = 3,500 mL
To convert from mL to L, divide the value in milliliters by 1,000.
Example: 750 mL = 750 ÷ 1,000 = 0.75 L
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Frequently asked questions
There are exactly 500 milliliters (mL) in a half liter (0.5 L).
The metric prefix 'milli-' means one-thousandth. Therefore, a milliliter is exactly 1/1,000 of a liter.
There are exactly 250 milliliters in a quarter liter (0.25 L).
1,500 milliliters is equivalent to 1.5 liters (1,500 ÷ 1,000).
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