Convert litre to millilitre
1 litre = 1000 millilitres. Enter any value below for an exact conversion.
1 L =
1000 mL
millilitres
Need the reverse? Convert millilitre to litre →
Formula
1 litre = 1000 millilitres millilitre = litres × 1000 litre = millilitres × 0.001
litre to millilitre conversion table
About converting litres to millilitres
Litres to millilitres is the standard step for recipes, medicine doses, and lab work, where quantities are stated in millilitres but bottles and jugs are marked in litres. One litre is exactly 1,000 mL.
Method & sources
Conversions use exact legal definitions rather than rounded approximations: 1 inch = 2.54 cm and 1 pound = 0.45359237 kg (fixed by the 1959 international yard and pound agreement), 1 mile = 1.609344 km, and 1 US liquid gallon = 3.785411784 litres. Temperatures convert with °F = °C × 9⁄5 + 32 and K = °C + 273.15. Results are rounded only for display.
- NIST Special Publication 811 — Guide for the Use of the SI
- NIST Handbook 44, Appendix C — General Tables of Units of Measurement
Page last updated: October 1, 2026
Frequently asked questions
How many millilitres are in a litre?
One litre equals 1000 millilitres. So 10 litres is 10000 millilitres. Use the converter above for any value.
What is the formula to convert litres to millilitres?
1 litre = 1000 millilitres millilitre = litres × 1000 litre = millilitres × 0.001
Is the litre-to-millilitre conversion exact?
Yes. The conversion factor between litres and millilitres is defined exactly, so results are precise — only rounded for display.
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