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Specific Properties

in³/lbtom³/kg

Convert cubic inches per pound (in³/lb) to cubic metres per kilogram (m³/kg).

Factor1 in³/lb = 3.612729e-5 m³/kg

Converter

in³/lb

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

Result
0.0361273m³/kg

Rendered to 6 significant figures.

Formula

Formula
m³/kg = in³/lb × 3.612729e-5

Multiply any value in cubic inches per pound by 3.612729e-5 to obtain the value in cubic metres per kilogram.

Worked example

Convert 1000 in³/lb to m³/kg.

  1. 01Start with 1000 in³/lb.
  2. 02Multiply by the conversion factor: 1000 × 3.612729e-5 = 0.0361273 m³/kg.
Result1000 in³/lb = 0.0361273 m³/kg

Conversion table

in³/lbm³/kg
13.6127e-5
27.2255e-5
50.00018064
100.00036127
200.00072255
500.0018064
1000.0036127
2000.0072255
5000.018064
10000.036127

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from in³/lb to m³/kg?
1 in³/lb equals 3.612729e-5 m³/kg. To convert, multiply the value in cubic inches per pound by 3.612729e-5.
How do I convert 1 in³/lb to m³/kg?
1 in³/lb = 3.61273e-5 m³/kg. For any value, multiply by 3.612729e-5.
How do I convert m³/kg back to in³/lb?
Divide by the same factor — or equivalently, multiply by 27679.9. So 1 m³/kg = 27679.9 in³/lb.
When would I need to convert cubic inch per pound to cubic metre per kilogram?
Specific-volume conversions between in³/lb and m³/kg arise in steam-table lookups, compressible-flow analysis, and thermodynamic state-point work. Specific volume is the reciprocal of density and must not be confused with it — m³/kg and ft³/lb appear directly in property tables and equation-of-state solvers.
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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