Density Converters

Convert between common SI and imperial density units used in materials, fluids, and engineering calculations.

Available converter families

SI, imperial, and engineering density mirror pairs

Every direction below is a dedicated page so each density conversion has a direct mirror link.

kg/m³ to g/cm³ g/cm³ to kg/m³ kg/m³ to g/mL g/mL to kg/m³ kg/m³ to kg/L kg/L to kg/m³ kg/m³ to lb/ft³ lb/ft³ to kg/m³ kg/m³ to lb/in³ lb/in³ to kg/m³ kg/m³ to oz/in³ oz/in³ to kg/m³ kg/m³ to slug/ft³ slug/ft³ to kg/m³ g/cm³ to g/mL g/mL to g/cm³ g/cm³ to kg/L kg/L to g/cm³ g/cm³ to lb/ft³ lb/ft³ to g/cm³ g/cm³ to lb/in³ lb/in³ to g/cm³ g/cm³ to oz/in³ oz/in³ to g/cm³ g/cm³ to slug/ft³ slug/ft³ to g/cm³ g/mL to kg/L kg/L to g/mL g/mL to lb/ft³ lb/ft³ to g/mL g/mL to lb/in³ lb/in³ to g/mL g/mL to oz/in³ oz/in³ to g/mL g/mL to slug/ft³ slug/ft³ to g/mL kg/L to lb/ft³ lb/ft³ to kg/L kg/L to lb/in³ lb/in³ to kg/L kg/L to oz/in³ oz/in³ to kg/L kg/L to slug/ft³ slug/ft³ to kg/L lb/ft³ to lb/in³ lb/in³ to lb/ft³ lb/ft³ to oz/in³ oz/in³ to lb/ft³ lb/ft³ to slug/ft³ slug/ft³ to lb/ft³ lb/in³ to oz/in³ oz/in³ to lb/in³ lb/in³ to slug/ft³ slug/ft³ to lb/in³ oz/in³ to slug/ft³ slug/ft³ to oz/in³

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Explanation

All density factors here are derived through kilograms per cubic meter (kg/m³). Metric volumetric-density forms (g/cm³, g/mL, kg/L) align exactly at 1000 kg/m³, while imperial and slug-based units are normalized through fixed kilogram and meter definitions.

How to use this hub

  1. Choose a converter family.
  2. If converting to/from grams from a volume unit, select an ingredient.
  3. For pure unit changes (volume↔volume or weight↔weight), use universal conversions.

If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.

Frequently Asked Questions

Why are g/cm³, g/mL, and kg/L equal?

They represent equivalent mass/volume scales, so each equals exactly 1000 kg/m³.

Why include slug/ft³?

Slug-based density is common in some US engineering contexts where force-mass relationships are expressed in imperial units.

How do I switch direction?

Use the switch button to navigate directly to the mirror page for the reverse conversion.