Physics formula reference

Density Formula

Calculates mass per unit volume for a material or object.

Open in editor
LaTeX\rho=\frac{m}{V}

Variables

  • ρ: density
  • m: mass
  • V: volume

How to use this formula

Calculates mass per unit volume for a material or object.

Important notes

  • Use consistent units such as kg and m³.
  • Density may change with temperature and pressure.

Quick example

A 2 kg object occupying 0.001 m³ has density 2000 kg/m³.

Applicability, worked calculation, and verification

Assumptions and domain checks

  • Density may change with temperature and pressure.
  • For the Density Formula, every denominator must be nonzero, and the numerator and denominator must remain correctly grouped.
  • Use dimensionally consistent units and the sign, coordinate, and reference-frame conventions stated for the problem.

Worked example

Input

Output

A 2 kg object occupying 0.001 m³ has density 2000 kg/m³.

Common mistakes

  • When copying Density Formula, keep the complete numerator and denominator grouped; a missing brace or parenthesis changes the result.
  • Verify the result of Density Formula with a known case, inverse operation, dimensional check, or independent calculation before publishing it.

Continue the workflow

Use Density Formula in your own work

  1. Check the domainMatch the variables and assumptions to the problem before substituting values.
  2. Copy the exact notationPreserve grouping, signs, and exponents in \rho=\frac{m}{V}.
  3. Edit or convertOpen the expression in the LaTeX editor, then export it for your document or web page.

Review and verification

Last reviewed: 2026-07-23

Automated quality check: Kept noindex until the missing evidence is supplied.

Formula references

  • College Physics 2eOpenStax, Rice University — Reviewed physical quantities, units, mechanics, energy, waves, electricity, and applied formulas.

Frequently asked questions

What is the Density Formula used for?

Calculates mass per unit volume for a material or object.

Can I copy this formula as LaTeX?

Yes. Copy \rho=\frac{m}{V} or open it in the LaTeX editor.

What should I check before using it?

Confirm that each variable, unit, domain restriction, and assumption matches the problem.

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