Density Converter – Convert Common Density Units
Convert density between kg/m³, g/cm³ and imperial units.
About the Density Converter
What is the Density Converter?
A density converter changes a density value between metric and imperial mass-per-volume units.
Why use this calculator?
Materials science, chemistry and shipping all use density, and because it combines mass and volume, unit choices vary widely.
How to use it
- Enter the density value.
- Choose the source and target units.
- Read the converted density.
Formula
Density is mass divided by volume; 1 g/cm³ equals 1,000 kg/m³.
Water has a density of about 1 g/cm³ or 1,000 kg/m³ at room temperature.
Frequently Asked Questions
What is specific gravity?
It is a material's density divided by the density of water, so it has no units. A specific gravity of 1 matches water.
Is 1 g/cm³ the same as 1 g/mL?
Yes, one cubic centimetre equals one millilitre, so the densities are identical.
How precise are the conversions?
Conversions use standard, internationally defined factors and are rounded for display. They are accurate to the number of digits shown.
Can I convert back and forth without losing accuracy?
Yes. Enter the original value to get an exact inverse conversion; avoid chaining rounded results if you need maximum precision.
Which measurement system is used?
Both metric (SI) and US customary / imperial units are supported and clearly labelled.
Is this calculator free to use?
Yes. Every calculator on this site is completely free, with no hidden fees, no subscriptions and no limits on how many times you can use it.
How accurate are the results?
We use standard, widely accepted formulas and calculate in your browser using double-precision arithmetic. Results are rounded for readability, so treat them as reliable estimates rather than a guarantee. Real-world factors can vary the true figure.
Can I add this calculator to my own website?
Yes. Open this calculator page and use the "Add to your website" box in the sidebar to copy a ready-made iframe snippet, then paste it into any HTML page.
Does it work on a phone or tablet?
Yes. The layout is fully responsive, so it works on desktops, laptops, tablets and mobile phones, and every input adapts to touch screens.
Is the information I type kept private?
Yes. All calculations run locally in your browser. Nothing you enter is uploaded, stored or shared with anyone.