How many milliliters are in 1 liter?

One liter is equal to 1,000 milliliters because the metric system is based on powers of ten. A milliliter is defined as one-thousandth of a liter. Therefore, in a single liter, you can fit 1,000 of these smaller units:

• 1 liter (L) = 1,000 milliliters (mL).

This relationship is fundamental in both everyday measurements and scientific contexts, as it allows for easy conversions between metric units. Understanding this conversion is crucial in chemistry, where precise measurements of liquids are often necessary.