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Density and Mass

lb/in³tolb/gal (UK)

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

Factor1 lb/in³ = 277.4194 lb/gal (UK)

Converter

lb/in³

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

Result
277.419lb/gal (UK)

Rendered to 6 significant figures.

Formula

Formula
lb/gal (UK) = lb/in³ × 277.4194

Multiply any value in pounds per cubic inch by 277.4194 to obtain the value in pounds per imperial gallon.

Worked example

Convert 1 lb/in³ to lb/gal (UK).

  1. 01Start with 1 lb/in³.
  2. 02Multiply by the conversion factor: 1 × 277.4194 = 277.419 lb/gal (UK).
Result1 lb/in³ = 277.419 lb/gal (UK)

Conversion table

lb/in³lb/gal (UK)
1277.42
2554.84
51387.1
102774.2
205548.4
5013871
10027742
20055484
5001.3871e+5
10002.7742e+5

Reference values rounded to 5 significant figures for display.

FAQ

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