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Density and Mass

lb/galtokg/m³

Convert pounds per US gallon (lb/gal) to kilograms per cubic metre (kg/m³).

Factor1 lb/gal = 119.8264 kg/m³

Converter

lb/gal

Accepts numbers or expressions, e.g. 150 + 14.7

Result
958.611kg/m³

Rendered to 6 significant figures.

Formula

Formula
kg/m³ = lb/gal × 119.8264

Multiply any value in pounds per US gallon by 119.8264 to obtain the value in kilograms per cubic metre.

Worked example

Convert 8 lb/gal to kg/m³.

  1. 01Start with 8 lb/gal.
  2. 02Multiply by the conversion factor: 8 × 119.8264 = 958.611 kg/m³.
Result8 lb/gal = 958.611 kg/m³

Conversion table

lb/galkg/m³
1119.83
2239.65
5599.13
101198.3
202396.5
505991.3
10011983
20023965
50059913
10001.1983e+5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from lb/gal to kg/m³?
1 lb/gal equals 119.8264 kg/m³. To convert, multiply the value in pounds per US gallon by 119.8264.
How do I convert 1 lb/gal to kg/m³?
1 lb/gal = 119.826 kg/m³. For any value, multiply by 119.8264.
How do I convert kg/m³ back to lb/gal?
Divide by the same factor — or equivalently, multiply by 0.008345404. So 1 kg/m³ = 0.0083454 lb/gal.
When would I need to convert pound per US gallon to kilogram per cubic metre?
Density conversions are critical for fluid property datasheets, hydraulic head calculations, and reconciling lab measurements (often g/cm³) with process simulator inputs (kg/m³).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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