Product Data Sheets
- Black Gator® LB Wellhead Feed-Thru System
- Cayman™ LB Wellhead Feed-Thru System
- Tri-Gator® LB Wellhead Feed-Thru System
- Gator Feed® 5K
This calculator will convert a Fahrenheit temperature into its Celsius equivalent — or visa versa.
Specific Gravity of Oil
|Type of Oil||Temp||kg m-3||SG at 60°F|
|Crude oil, 48° API||60°F||790||0.7883|
|Crude oil, 40° API||60°F||825||0.8251|
|Crude oil, 35.5° API||60°F||847||0.8473|
|Crude oil, 32.5° API||60°F||862||0.8628|
|Crude oil, California||60°F||915|
|Crude oil, Mexican||60°F||973|
|Crude oil, Texas||60°F||873|
API Gravity Formulas
The formula used to obtain the API gravity of petroleum liquids is:
API gravity = (141.5/SG at 60°F) – 131.5
Conversely, the specific gravity of petroleum liquids can be derived from the API gravity value as:
SG at 60°F = 141.5/(API gravity + 131.5)
60°F (or 15.5556°C) is used as the normal value for measurements and further tables give adjustments for temperature
(as determined by ASTM D1298).
Thus, a heavy oil with a specific gravity of 1.0 (i.e., with the same density as pure water at 60°F) would have an API gravity of (141.5/1.0) – 131.5 = 10.0 degrees API.