Physics Tool

Density, Mass & Volume Calculator

Calculate density ρ = m / V for physical substances.

Last reviewed by the myCalculator Editorial Team

Input Parameters

Calculation Results

Density (ρ = m / V)
2units
Mass (m)
100
Volume (V)
50

Formula & How Density, Mass & Volume Calculator Works

Mathematical Formula
ρ = m / V

Density is mass divided by volume: ρ = m ÷ V. Pure water is 1,000 kg/m³ (1 g/cm³). An object that has a mass of 450 g and a volume of 500 mL has a density of 0.9 g/mL, which is 900 kg/m³, so it floats in water. Aluminium is about 2,700 kg/m³, so 0.5 m³ of it has a mass of 1,350 kg. Rearrange to find mass (m = ρ × V) or volume (V = m ÷ ρ). Density is how you work out the weight of a load of concrete, fuel or sand, and whether something floats or sinks. Keep the units consistent, kg with m³ or g with cm³.

How to Calculate Density, Mass & Volume Calculator (Step-by-Step)
  1. Enter Mass (g or kg): Input your target parameter value.
  2. Enter Volume (cm³ or m³): Input your target parameter value.
  3. Apply Formula: Calculate using ρ = m / V.
  4. Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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APA 7th Edition

MyCalculator.com.au. (2026). Density, Mass & Volume Calculator. Retrieved October 24, 2026, from https://www.mycalculator.com.au/calculators/physics/density-physics

Harvard (Standard)

MyCalculator.com.au. (2026) 'Density, Mass & Volume Calculator'. Available at: https://www.mycalculator.com.au/calculators/physics/density-physics (Accessed: 24 October 2026).

Frequently Asked Questions (FAQs)

Why do objects float?

An object floats if its density is less than the fluid's density.

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Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:

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