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Density and Mass

lb/gal (UK)tolb/in³

Convert pounds per imperial gallon (lb/gal (UK)) to pounds per cubic inch (lb/in³).

Factor1 lb/gal (UK) = 0.00360465 lb/in³

Converter

lb/gal (UK)

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

Result
0.360465lb/in³

Rendered to 6 significant figures.

Formula

Formula
lb/in³ = lb/gal (UK) × 0.00360465

Multiply any value in pounds per imperial gallon by 0.00360465 to obtain the value in pounds per cubic inch.

Worked example

Convert 100 lb/gal (UK) to lb/in³.

  1. 01Start with 100 lb/gal (UK).
  2. 02Multiply by the conversion factor: 100 × 0.00360465 = 0.360465 lb/in³.
Result100 lb/gal (UK) = 0.360465 lb/in³

Conversion table

lb/gal (UK)lb/in³
10.0036047
20.0072093
50.018023
100.036047
200.072093
500.18023
1000.36047
2000.72093
5001.8023
10003.6047

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from lb/gal (UK) to lb/in³?
1 lb/gal (UK) equals 0.00360465 lb/in³. To convert, multiply the value in pounds per imperial gallon by 0.00360465.
How do I convert 1 lb/gal (UK) to lb/in³?
1 lb/gal (UK) = 0.00360465 lb/in³. For any value, multiply by 0.00360465.
How do I convert lb/in³ back to lb/gal (UK)?
Divide by the same factor — or equivalently, multiply by 277.4194. So 1 lb/in³ = 277.419 lb/gal (UK).
When would I need to convert pound per imperial gallon to pound per cubic inch?
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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