One liter equals 1000 milliliters, so there are 1000 mL in a single litre. If you have X litres, multiply by 1000 to get mL (X × 1000). If you have X milliliters, divide by 1000 to get L (X / 1000).

• Quick reference: 1 L = 1000 mL
• Examples:
  • 2 L = 2000 mL
  • 750 mL = 0.75 L

If you have a specific quantity in either unit, share it and I’ll convert it for you.