Density Converter
Convert mass density across SI, metric lab, US customary bulk, liquid, and FPS engineering labels. The converter uses kilograms per cubic meter as the base route and keeps mass density separate from weight density.
Base unit
kg/m3
Supported units
8
Includes
lab + US
Live converter
Density conversion inputs
Convert mass density across SI, metric lab, US customary bulk, pounds per gallon, and slug per cubic foot units.
Converted result
1,000 kg/m3
Input
1 g/cm3
Output unit
kg/m3
Base method
kg per m3
Density in every supported unit
| Unit | Converted value | Unit name | Note |
|---|---|---|---|
| kg/m3 | 1,000 | Kilograms per cubic meter | SI mass density unit. |
| g/cm3 | 1 | Grams per cubic centimeter | Same scale as g/mL for water-like liquids. |
| g/mL | 1 | Grams per milliliter | Common lab and ingredient density unit. |
| kg/L | 1 | Kilograms per liter | Metric liquid density unit. |
| lb/ft3 | 62.4279605761 | Pounds per cubic foot | US customary bulk density. |
| lb/in3 | 0.0361272920001 | Pounds per cubic inch | Dense material and mechanical design unit. |
| lb/gal | 8.34540445202 | Pounds per US gallon | US liquid density label. |
| slug/ft3 | 1.94032033198 | Slugs per cubic foot | FPS engineering density unit. |
Base unit
kg/m3
Supported units
8
Includes
lab + US
Convert material, fluid, and bulk density labels
Material property checks
Convert density values from lab data, product sheets, fluids, and bulk material references.
Full comparison table
Review every supported engineering unit after one input so adjacent checks do not require repeated typing.
SI base route
Trace each answer through a standard SI base unit instead of relying on an isolated result.
Density conversion formula
The converter normalizes every source density to kilograms per cubic meter, then divides by the target density factor.
Working formulas
Base conversion
kg/m3 = value x kg/m3 per source unit
Every density value is first expressed as mass per cubic meter.
Target value
target value = kg/m3 / kg/m3 per target unit
The base density is scaled into the target label.
Metric lab relationship
1 g/cm3 = 1000 kg/m3
The same factor applies to 1 g/mL and 1 kg/L.
Symbols
- rho - mass density
- Mass divided by volume for a material or fluid.
- kg/m3 - kilograms per cubic meter
- SI mass density unit.
Why density needs a base-volume route
Connects lab and engineering units
- g/cm3, g/mL, and kg/L are easy to compare once they are normalized to kg/m3.
- US customary bulk density and liquid density labels are included in the same table.
- Slug per cubic foot is available for FPS engineering calculations.
Keeps quantity meaning clear
- This page handles mass density, not specific gravity or weight density.
- The formula block identifies mass divided by volume as the quantity being converted.
- The table helps spot values that differ because the source used cubic inches, gallons, or cubic feet.
Useful for density reference work
Materials teams
Convert material densities from product sheets and lab results.
Fluid checks
Compare kg/L, g/mL, lb/gal, and kg/m3 values.
Engineering students
Practice mass-density conversion across metric and US systems.
How it works in three quick steps.
Enter density
Type a material, liquid, bulk, or lab density value.
Select units
Choose SI, metric lab, US customary, pounds per gallon, or slug per cubic foot labels.
Review kg/m3 route
Use the table to compare values and confirm the mass-density base unit.
Save density conversions
Copy engineering result
Copy the converted value with source and target labels for calculations, specs, worksheets, or review notes.
Print the table
Print the comparison table when shop, lab, classroom, or field work needs multiple adjacent units visible.
Keep the SI route visible
Use the formula notes to confirm whether the conversion passed through N m, N, kg/m3, or m3/s.
Frequently Asked Questions
Is density the same as specific gravity?
Why does 1 g/cm3 equal 1000 kg/m3?
Can I use this for weight density?
Why include pounds per gallon?
What is the base unit used here?
Related engineering converters
About this density converter
Density conversion connects lab measurements, material specifications, fluid labels, and engineering calculations. The same material may be described as g/cm3 in a lab, kg/m3 in SI documentation, lb/ft3 in a US engineering note, or lb/gal in a liquid product sheet.
This converter uses kilograms per cubic meter as the base route and keeps mass density separate from weight density and specific gravity. The table is designed for quick audits when material and fluid data crosses metric, US customary, and FPS engineering systems.
Who maintains this page
Ownership and review
Written and maintained by the Toolarithm editorial team. No review date is shown without a maintained editorial record. No independent professional review is claimed.
Methodology
Conversion factors are normalized to canonical units and checked in both directions. Exact definitions and offset formulas are preferred over rounded lookup values.
Read the editorial methodologyDates and sources
Review dates change only after a substantive method or content check.
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