Quick Answer: Liters to Milliliters
One liter equals 1,000 milliliters (1 L = 1,000 mL).
Conversely, 1 mL = 0.001 L.
Formula: mL = L × 1000
Worked examples
- 0.1 L = 100 mL
- 0.25 L = 250 mL
- 0.5 L = 500 mL
Method and limitations
To convert liters to milliliters, multiply the liter value by 1000. Calculations use full-precision constants; displayed values are rounded to at most 9 significant figures. Results are rounded for display only. Full precision is kept internally, so long chains of conversions do not accumulate rounding error. Where US customary and imperial units share a name (for example fluid ounces and gallons), this page uses the US customary definition and says so explicitly.
Each factor is exact by definition, derived from exact definitions, or a documented conventional value — see the methodology and sources.
Conversion Formula
To convert liters to milliliters, multiply the liter value by 1000.
Step-by-Step Conversion Guide
Follow these steps to convert liters to milliliters manually:
Start with your value in liters
Example: You want to convert 0.5 L
Apply the conversion formula
Use the formula: mL = L × 1000
Calculate the result
0.5 L = 500 mL
Verify your answer
Use our calculator above to double-check your manual calculation.
Quick Mental Math Tip
To convert liters to milliliters, multiply the liter value by 1000.
Common Conversions
| Liters (L) | Milliliters (mL) | Milliliters → Liters |
|---|---|---|
| 0.1 L | 100 | 0.1 mL = 0.0001 L |
| 0.25 L | 250 | 0.25 mL = 0.00025 L |
| 0.5 L | 500 | 0.5 mL = 0.0005 L |
| 0.75 L | 750 | 0.75 mL = 0.00075 L |
| 1 L | 1,000 | 1 mL = 0.001 L |
| 1.5 L | 1,500 | 1.5 mL = 0.0015 L |
| 2 L | 2,000 | 2 mL = 0.002 L |
| 3 L | 3,000 | 3 mL = 0.003 L |
| 5 L | 5,000 | 5 mL = 0.005 L |
| 10 L | 10,000 | 10 mL = 0.01 L |
Did You Know?
The liter was originally defined as the volume of 1 kilogram of water at 4°C, creating a direct link between volume and weight measurements.
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Conversion factors on this page are either exact by definition, derived from exact definitions, or conventional values in documented use. Each is listed with its source in our conversion methodology and sources, which cites the BIPM SI Brochure, NIST Special Publication 811 and the relevant IEC or national standards. Results are rounded for display only; calculations use full precision.