HESI Math Practice Exam - Comprehensive Practice Test and Study Guide

To convert liters to milliliters, it's essential to know the relationship between these two units. One liter is equivalent to 1,000 milliliters. Therefore, to convert 3 liters into milliliters, you multiply the number of liters by 1,000.

Calculating this gives:

3 liters × 1,000 milliliters/liter = 3,000 milliliters.

This amount corresponds to the choice that indicates 3,000 mL, which is 3 liters expressed in smaller units. Understanding the conversion factor of 1,000 is key in making these types of calculations, ensuring you can accurately convert between units of volume as required in various contexts, such as cooking or measuring liquids in scientific settings.