Density Calculator
Use this density calculator to find density from mass and volume. It is useful for geology, chemistry, physics, rock identification, minerals, and classroom science problems.
Density Result
Understanding Density
Density tells us how much mass is packed into a certain amount of space. A small object can be very dense if it contains a lot of mass in a small volume, while a large object can be less dense if its mass is spread out.
In geology, density is useful for identifying rocks, comparing minerals, studying Earth’s interior, and understanding why some materials sink while others float.
Common Density Examples
| Material | Approximate Density |
|---|---|
| Water | 1.00 g/cm³ |
| Ice | 0.92 g/cm³ |
| Granite | 2.6–2.8 g/cm³ |
| Basalt | 2.8–3.1 g/cm³ |
| Iron | About 7.87 g/cm³ |
Why Density Matters in Geology
Geologists use density to compare rocks and minerals because different materials have different internal structures and compositions. Dense rocks often contain heavier minerals or metal-rich components.
Density also helps explain Earth’s layered structure. The densest materials tend to sink toward the center, while lighter materials form the crust.
Density Calculator FAQ
What is density?
Density is the amount of mass in a certain volume. It tells how tightly matter is packed together.
What is the formula for density?
The formula for density is density = mass ÷ volume.
What unit is density measured in?
Density is commonly measured in g/cm³ or kg/m³, depending on the science field and measurement system.
Why is density important in geology?
Density helps geologists identify rocks, compare minerals, study Earth’s interior, and understand material behavior.
What is the density of water?
Water has a density of about 1.00 g/cm³ at standard conditions.