Specific volume Calculator

Formula first

Overview

Specific volume is the reciprocal of density, so it tells you how much space is associated with a unit mass. Engineers use it when they need a volume-per-mass property instead of a mass-per-volume property.

Symbols

Variables

v = Specific Volume, V = Volume, m = Mass, $\rho$ = Density

Apply it well

When To Use

When to use: Use this equation when you are given volume and mass, or when density is provided and you need the reciprocal quantity.

Why it matters: Specific volume is common in thermodynamics, fluid mechanics, and process engineering because it is often more convenient than density for some state-property calculations. It shows how much physical space a unit mass occupies.

Avoid these traps

Common Mistakes

• Using mass divided by volume instead of volume divided by mass.
• Forgetting that the reciprocal of density has units of volume per mass.

One free problem

Practice Problem

A fluid occupies 0.80 $m^3$ and has a mass of 400 kg. What is its specific volume?

Solve for: specificVolume

Hint: Divide volume by mass.

The full worked solution stays in the interactive walkthrough.

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Related Formulas

References

Sources

1. IUPAC Gold Book, specific volume, accessed 2026-04-09
2. Engineering LibreTexts, 2.7: Key Equations, Introduction to Engineering Thermodynamics, accessed 2026-04-09
3. Chemistry LibreTexts, 10.3: Mole Quantities, accessed 2026-04-09
4. NIST CODATA
5. IUPAC Gold Book
6. Wikipedia: Specific volume
7. Wikipedia: Density
8. NIST Chemistry WebBook