1 deciliter is equivalent to how many milliliters?

One deciliter is equivalent to 100 milliliters. This conversion is based on the metric system, where the prefix "deci-" indicates one-tenth of a unit. Since a liter is equal to 1,000 milliliters, one deciliter, which is one-tenth of a liter, can be calculated by dividing 1,000 mL by 10. Thus, 1 deciliter = 1,000 mL / 10 = 100 mL. Understanding this conversion is important in nursing and healthcare for accurate medication dosing and fluid measurements.