Density Calculator
Density, mass or volume from the other two.
Enter your values
Enter the mass in g.
Enter the volume in cm³.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Density
- 2.7 g/cm³
- In kg/m³
- 2700
- In lb/ft³
- 168.556
- Specific gravity (vs water)
- 2.7
- Floats in water?
- No
Working
- 1ρ = 2700 ÷ 1000 = 2.7 g/cm³
Quick answer
Density equals mass divided by volume; water is 1 g/cm³ or 1,000 kg/m³.
ρ = m ÷ V
At a glance
| What it does | Density, mass or volume from the other two. |
|---|---|
| Category | Physics |
| Inputs needed | Mass, Volume |
| Main output | Density |
| Formula | ρ = m ÷ V |
| Cost | Free — no sign-up, no download |
How to use the Density Calculator
- 1Enter mass in grams.
- 2Enter volume in cubic centimetres.
- 3Read density in several common units.
Inputs explained
- Mass(g)
- Enter the mass in g.
- Volume(cm³)
- Enter the volume in cm³.
Worked example
Using the values the calculator loads with:
Inputs
- Mass2700 g
- Volume1000 cm³
Results
- Density2.7 g/cm³
- In kg/m³2700
- In lb/ft³168.556
- Specific gravity (vs water)2.7
- Floats in water?No
- ρ = 2700 ÷ 1000 = 2.7 g/cm³
Frequently asked questions
What is the density of aluminium?
2.70 g/cm³ — about a third of steel, which is why it dominates aerospace and drinks cans.
Is specific gravity the same as density?
It is density relative to water, so numerically identical in g/cm³ but dimensionless.
What do I need to enter into the Density Calculator?
Just 2 values: mass, volume. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Density Calculator work out the answer?
Density equals mass divided by volume; water is 1 g/cm³ or 1,000 kg/m³. It applies the formula ρ = m ÷ V and shows the working so you can check each step by hand.
Is the Density Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.