Free Density Converter
Water is 1 g/cm³, air is about 1.2 kg/m³, and concrete sits near 2,400 kg/m³ — density numbers only make sense in the right units. This free density converter moves between metric and imperial density units instantly, with a full comparison table.
Value in all density units
| Unit | Value |
|---|
How to Use the Density Converter
- Enter a value in the input box above.
- Choose the units to convert from and to — use the ⇄ button to swap them instantly.
- See the result immediately, plus the value converted into every other density unit in the table below.
- Copy the result with one click to use it anywhere.
Features
Seven density units: kg/m³, g/cm³, g/mL, kg/L, lb/ft³, lb/in³ and oz per US gallon. Live results, swap button, and every equivalent shown together.
Benefits & Use Cases
Chemistry students, brewers measuring wort, engineers checking material specs, and shippers calculating dimensional weight all get exact values. No more misplacing a factor of 1,000.
Tips
1 g/cm³ = 1,000 kg/m³ exactly — the most common slip is forgetting those three zeros. Water’s density (1 g/cm³) is a great sanity check for any result.
Frequently Asked Questions
How do I convert g/cm³ to kg/m³?
Multiply by 1,000. Water at 1 g/cm³ = 1,000 kg/m³.
What is the density of water?
1 g/cm³ (1,000 kg/m³) at 4 °C — the reference point for specific gravity.
How many lb/ft³ is 1 g/cm³?
About 62.43 lb/ft³.
What does oz/gal mean?
Ounces per US gallon — about 7.49 kg/m³ per oz/gal. Sometimes used for liquid concentrations.
Related Tools
Mass Converter
Convert kilograms, grams, milligrams, pounds, slugs and atomic mass units with NToolHub’s free mass converter. Precise, fast, no sign-up.
Open tool →Weight Converter
Convert kilograms to pounds, ounces to grams, stones to kg and more with NToolHub’s free weight converter. Fast, accurate, no sign-up needed.
Open tool →Volume Converter
Convert liters to gallons, milliliters to cups, fluid ounces to liters with NToolHub’s free volume converter. US and imperial units, no sign-up.
Open tool →Pressure Converter
Convert bar to PSI, atmospheres to kPa, mmHg to Pa and more with NToolHub’s free pressure converter. Instant results, no sign-up needed.
Open tool →Force Converter
Convert newtons to pound-force, kilogram-force to newtons, dynes and more with NToolHub’s free force converter. Exact constants, instant results, no sign-up.
Open tool →