How Much Does a Rock Weigh?

A typical medium-sized rock weighs between 5 and 20 kilograms (11 to 44 pounds), depending on its size and type.

How Much Does a Rock Weigh?

Interesting fact: Rocks vary widely in weight, from tiny pebbles to massive formations weighing tons.

The answer: A typical medium-sized rock weighs between 5 and 20 kilograms (11 to 44 pounds), depending on its size and type.

Rocks are naturally occurring solid mineral materials that come in many sizes and types. Their weight depends on volume and density. For example, granite is denser than sandstone, so rocks of the same size can have different weights. Small rocks like pebbles weigh just a few grams, while larger rocks can weigh several tons. Knowing rock weight is important in construction, landscaping, and geology.