Density Calculator
Calculate density, mass, or volume using the density formula and convert between units.
A density calculator finds density, mass, or volume from any two known values using the formula density = mass / volume.
Examples
Find density of an object
Find volume from mass and density
Frequently Asked Questions
What is the densest common material?
What is the difference between density and specific gravity?
Quick Tips
- •Water has a density of exactly 1.0 g/cm³ at 4 degrees C — use it as a reference point.
- •Objects with density less than water float; those with density greater than water sink.
- •Temperature affects density — most materials expand (lower density) when heated.
A density calculator finds density, mass, or volume from any two known values using the formula density = mass / volume.
How to Use This Calculator
Select what to solve for (density, mass, or volume), enter the known values with their units, and the calculator solves using d = m/v. Results are displayed in your chosen units.
Understanding the Formula
Density = Mass / Volume (d = m/v). Mass = Density x Volume (m = d*v). Volume = Mass / Density (v = m/d). All calculations convert to g/cm³ internally, then convert to the selected output unit.
Examples
Find density of an object
An object weighs 500 g and has a volume of 185 cm³. Density = 500 / 185 = 2.70 g/cm³ (similar to aluminum).
Find volume from mass and density
100 g of gold (density 19.3 g/cm³): Volume = 100 / 19.3 = 5.18 cm³.
Frequently Asked Questions
What is the densest common material?
Osmium is the densest naturally occurring element at 22.59 g/cm³. Gold (19.3 g/cm³) and lead (11.34 g/cm³) are commonly known dense materials.
What is the difference between density and specific gravity?
Specific gravity is the ratio of a substance's density to the density of water (1 g/cm³). So a material with density 2.7 g/cm³ has a specific gravity of 2.7 — it is dimensionless.
Assumptions & Limitations
- Assumes uniform material density throughout the object.
- Does not account for temperature or pressure effects on density.
- Uses standard reference densities; actual values vary by composition.