Density Calculator
Find the density of any object or substance by providing its mass and volume. A fundamental tool for physics, chemistry, and materials science.
Calculated Density ($\rho$)
0
Units per Volume Unit
The Density Formula
Density is a measure of how much "stuff" is packed into a specific amount of space. The Greek letter Rho ($\rho$) is often used to represent density. The formula is:
$\rho = \frac{\text{Mass}}{\text{Volume}}$
By using this calculation, we can determine whether an object will float or sink in a fluid, or identify what material an unknown object is made of.
Frequently Asked Questions
What is the density of water? +
Pure water has a density of exactly $1,000\text{ kg/m}^3$ (or $1\text{ g/cm}^3$) at room temperature. Any object with a density lower than this will float in water, while objects with a higher density will sink.
Does temperature affect density? +
Yes. For most substances, increasing temperature causes the volume to expand while the mass stays the same, which results in a lower density. This is why hot air rises!
Mass vs. Weight? +
Mass is the amount of matter in an object and stays the same everywhere. Weight is the force of gravity pulling on that mass. For this calculator, you should always use the mass (usually measured in kilograms or grams).
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