How many milliliters are in 1 liter?

One liter is equivalent to 1000 milliliters. This relationship is based on the metric system, where the prefix "milli-" denotes a factor of one-thousandth. Therefore, when converting liters to milliliters, you multiply the number of liters by 1000. Since there is one full liter, multiplying by 1000 results in 1000 milliliters. Understanding this conversion is important in nursing and clinical settings, where precise measurements of fluids are often necessary for patient care.