Pipe flow calculators

Specific gravity conversion calculator


Calculator Description

Specific gravity conversion calculator can be used for conversion between API degrees, Baume degrees and specific gravity and is applicable for all liquids, but most common application is for oils.

  • Calculate:

    • Specific gravity in API degrees
    • Specific gravity in Baume degrees
  • Input:

    • Liquid specific volume
    • Liquid density

Calculator Features

  • Select between API and Baume degrees calculation
  • For liquid lighter and heavier than water

Specific gravity is ratio of some liquid density divided by water density, at referenced temperature. As liquids are having different gravity on different temperature, for this calculator 60 degrees F (60 0F; 15.6 0C) is used as reference temperature - SG (60 0F/60 0F).

Calculator also calculates liquid density ρ in [lb/gallon] and specific volume v, in [barrels/MT] (barrels/metric tons) units.

Conversion in API degrees is for liquids with specific gravity lower than 1, which means for liquids lighter than water. Conversion in Baume degrees is for liquids with specific gravity higher or lower than 1, which means for liquids heavier or lighter than water.


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If you would like to use the calculator, but actually can't see the blue CALCULATOR button in the upper left part of the page than please read instructions.

Q: Calculate specific garvity, density and specific volume of liquid fluid with SG(60OF/60OF) = 0.9

A: Calculation setup:
Input values:
SG(60OF/60OF) = 0.9

Q: Convert specific gravity of fluid with 200 API specific gravity to Baume degrees

A: Calculation setup:
Input values:
API = 200

Q: Convert specific gravity of fluid with 270 Baume specific gravity to API degrees

A: Calculation setup:
Input values:
Baume = 270

Specific gravity conversion calculator is based on following formula:

Read more about used theory on fluid properties page.

If you experience problems with calculator start try to find answers on instructions page.

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