Specific gravity conversion calculator

API and Baume specific gravity

online since 2010

Registration and subscription

Select a subscription plan and enable the full service:

  • Switch between metric and imperial units in one click
  • Export calculation results in Word .docx or Excel .xlsx format
  • Preview results on one place and copy/paste it in your favorite text editor
  • Send results back to your email
  • Support the future of this project

And even more... Subscribed users have access to the full set of 19 calculators available as Java™ Web start application or download Windows™ 64bit application.

Select the annual subscription and enable full service for only 0.05 USD/day Subscribe

Annual subscription

from $0.05 / day

total cost for one year $18.25

Action
Calculation setup
Specific gravity
Specific volume and density

Exclusive calculator

On exclusive calculator page you can use the online calculator without interference from advertisements, additional text, links and other content that is not required for the calculations themselves. A pure experience of using a calculator as with a desktop application.

An exclusive version of the calculator is available to registered users. Choose the right subscription duration and start using the exclusive service.

Exclusive

Description

SG - specific gravity
Ratio of the liquid density to the water density at specific temperature
API
American Petroleum Institute gravity. It's a measure of how heavy or light a petroleum liquid is compared to water. If its API gravity is greater than 10, it is lighter and floats on water. If less than 10, it is heavier and sinks
Baumé
Density of the liquid in Baumé scale
v - specific volume
Specific volume of the liquid
ρ - Density
Liquid density - mass to volume ratio

Calculation setup

Select value to input. Calculator will give you all the rest
SG
input specific gravity
API
input liquid gravity in API degrees
Baumé
input density is Baume degrees
Lighter than water
Pressed if liquid is lighter than water - only if Baume is selected to input

When is this calculator suitable?

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. 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.

Calculator description

Calculator use following equations for conversion between API and Baume degrees.

For oils specific gravity SG(60OF/60OF):

oil specific gravity

For liquids lighter than water SG(60OF/60OF):

oil specific gravity

For liquids heavier than water SG(60OF/60OF):

oil specific gravity

As the density of water at 15OC is 999 kg/m3, density of oil or other liquid can be calculated as: water density x SG(60OF/60OF).

Available in download version

save/open multiple results
export to word and excel
print results
custom fluid properties
K factor for fittings, resistance coefficient
pipe surface roughness selection
select between gauge and absolute pressure
compressible isothermal flow
dry air isothermal flow
gas offtake flow
natural gas flow

Download

Calculator start selection

Read all about available deployments. In any way of utilizing calculator, Internet connection is required, for authentication at least.

Need a helping hand?

calculation_guru

If you need a quick calculation, but you are not still familiar how to use the calculator, you can order calculation service from the calculator developer.

Order calculation service

Issues and answers

Having problems with calculators usage? Read more about known issues and problems and way to solve it.

Issues and answers