Density To Mass Calculator

Calculate mass, density, or volume using the fundamental formula m = ρ × V

Calculate Using m = ρ × V

Example Calculation

Calculate Mass from Density and Volume

Given: Density = 54 kg/m³, Volume = 80 m³

Step 1: Use the formula m = ρ × V

Step 2: Substitute values: m = 54 × 80

Step 3: Calculate: m = 4,320 kg

Alternative Mass Formulas in Physics

From Force & Acceleration: m = F/a (Newton's 2nd Law)

From Weight: m = W/g (Weight divided by gravity)

From Energy: m = E/c² (Einstein's mass-energy equivalence)

From Density & Volume: m = ρ × V (This calculator)

Common Material Densities

Water1000 kg/m³
Aluminum2700 kg/m³
Steel7850 kg/m³
Copper8960 kg/m³
Gold19300 kg/m³
Air (STP)1.225 kg/m³

Physics Facts

📏

Mass is a measure of the amount of matter in an object

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Density measures how tightly packed matter is in a given space

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The SI unit of mass is kilogram (kg)

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Mass is invariant - it doesn't change with location

Understanding Mass, Density, and Volume Relationships

The Mass Formula: m = ρ × V

This fundamental relationship in physics states that mass equals density multiplied by volume. It's derived from the definition of density as mass per unit volume (ρ = m/V), rearranged to solve for mass.

Applications

  • Materials Science: Determining material composition
  • Engineering: Calculating structural loads and weights
  • Chemistry: Stoichiometric calculations
  • Manufacturing: Quality control and material verification

Key Concepts

m = ρ × V

ρ = m / V

V = m / ρ

  • m: Mass (kg, g, etc.)
  • ρ (rho): Density (kg/m³, g/cm³, etc.)
  • V: Volume (m³, cm³, L, etc.)

Remember: Mass is the amount of matter, while weight is the force exerted by gravity on that mass. Mass remains constant regardless of location.

Mass vs. Density vs. Weight

Mass

The amount of matter in an object. Measured in kg, g, etc. Does not change with location or gravity.

Density

Mass per unit volume. Measured in kg/m³, g/cm³, etc. Intrinsic property of materials.

Weight

Force exerted by gravity on mass. Measured in N, lb, etc. Changes with gravitational field strength.