Density Converter

Convert density units including kg/m3, g/cm3 and lb/ft3. Free online density converter for physics, engineering and material science.

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Workspace Density Converter

Metric

Kilogram per cubic meter (kg/m³)

Gram per cubic centimeter (g/cm³)

Gram per milliliter (g/mL)

Kilogram per liter (kg/L)

Gram per liter (g/L)

Milligram per liter (mg/L)

Gram per cubic meter (g/m³)

Milligram per cubic meter (mg/m³)

Imperial

Pound per cubic foot (lb/ft³)

Ounce per cubic foot (oz/ft³)

Pound per cubic inch (lb/in³)

Ounce per cubic inch (oz/in³)

Others

Specific Gravity (SG, relative to water=1)

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Guide

How to use Density Converter

The Density Converter translates between common density units such as kilograms per cubic meter, grams per cubic centimeter and pounds per cubic foot. Enter a value, choose the source and target units, and read the result instantly. It suits physics homework, engineering calculations and material comparisons.

How to use this tool

Enter the density value.
Choose the source unit.
Choose the target unit.
Get the converted result instantly.

When to use this tool

Comparing material densities for engineering design.
Checking fluid density for chemistry and physics tasks.
Converting lab measurements between metric and imperial units.
Verifying density data on technical data sheets.

Practical examples

Water has a density of about 1 g/cm3, which equals 1,000 kg/m3 and roughly 62.4 lb/ft3. Entering 1 with g/cm3 as the source and kg/m3 as the target returns 1,000, the value used in most engineering tables.

Tips for accurate results

Confirm the source unit matches the unit on your data sheet.
Keep temperature in mind because density changes with temperature.
Use consistent units when comparing several materials.

Frequently asked questions

Which density units are supported?

The converter supports kg/m3, g/cm3, lb/ft3, lb/in3 and other common density units.

Why do my results differ slightly from a textbook?

Small differences usually come from rounding or temperature assumptions. Use the same reference conditions for comparison.

Is the tool free?

Yes, the density converter is free and runs entirely in your browser.