What is the formula for density?

The formula is ρ = m / V, where ρ (rho) is density, m is mass, and V is volume.

What are the common units for density?

The SI unit for density is kilograms per cubic meter (kg/m³). Other common units include grams per cubic centimeter (g/cm³) and pounds per cubic foot (lb/ft³).

How do you find the density of an irregular object?

You find mass using a scale and volume using water displacement (Archimedes' Principle). Divide mass by the displaced volume to get density.

Is density an intensive or extensive property?

Density is an intensive property, meaning it does not depend on the amount of substance present. A small gold coin and a large gold bar have the same density.

गणितीय प्रणाली सत्यापित

Density Calculator

Calculate mass, volume, or density (ρ = m/V). Essential tool for material science and physics.

अंतिम गणितीय सत्यापन: जनवरी 2026

Material Properties

Mass (kg)

Volume (m³)

Resulting density

Density Calculator क्या है?

Density (ρ) measures how much "stuff" is packed into a specific amount of space. It is a fundamental physical property of any substance. If you have two cubes of the same size, but one is made of lead and the other is made of foam, the lead cube will have a much higher density.

The standard SI unit for density is kg/m³ (kilograms per cubic meter), although g/cm³ is also commonly used in laboratories.

उपयोग कैसे करें

To find the density of an object, you follow three simple steps:

1. Weigh it. Find the object's mass using a scale.

2. Measure space. Calculate the volume (length × width × height for solids, or displacement for irregular shapes).

3. Divide. Use the formula ρ = m / V.

Pro Tip: Water has a density of exactly 1,000 kg/m³ (or 1 g/cm³).

वित्तीय शिक्षा

Common Material Densities

Air

1.2 kg/m³

Water

1,000 kg/m³

Steel

7,850 kg/m³

Gold

19,300 kg/m³

Why do things float?

Buoyancy is determined entirely by relative density. If an object is less dense than the fluid it is in, it will float. If it is more dense, it will sink.

"Even a heavy metal ship floats because it is mostly filled with air, making its total average density less than that of the surrounding water."

Does temperature affect density?

Yes. Most materials expand when heated, increasing their volume. Since mass remains the same, density decreases as temperature rises.

What is specific gravity?

It is the ratio of a substance's density to the density of water. If something has a specific gravity of 2.0, it is twice as dense as water.

Can density be zero?

No. All matter has mass and occupies space. A vacuum has zero density because it contains no mass, but a vacuum is by definition the absence of matter.

How is gas density different?

Gases are highly compressible. Their density depends heavily on pressure as well as temperature, unlike solids and liquids which are nearly incompressible.