How many times as heavy is mercury compared to water?

Mercury is known for its high density compared to water. Specifically, the density of mercury is approximately 13.6 grams per cubic centimeter, while the density of water is about 1 gram per cubic centimeter. This means that mercury is 13.6 times heavier than water when comparing equal volumes. This characteristic is essential in applications such as barometers and thermometers, where the displacement of liquid is a fundamental principle of their operation. Understanding the density ratio is crucial for tasks involving measurements of liquids, such as when using a hydrometer, where the specific gravity is dependent on this comparison.