// multi-utility computation suite · offline · instant · precise
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sci.crude-oil-API-gravity Calculator
Calculates API gravity = 141.5/SG − 131.5 from crude oil specific gravity and classifies crude by API gravity class. API > 40: light crude (Texas, Brent); API 20–40: medium crude; API < 20: heavy crude (Venezuelan tar sands) — light sweet crude commands premium price due to lower refining cost.
Inputs
Sg 60F
Reference formula or conversion factor shown for context.
T Measured F
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Results
API gravity (°API)
Reference formula or conversion factor shown for context.
density at 60°F (kg/m³)
The value at the specified point or condition.
SG corrected to measured T
Reference formula or conversion factor shown for context.
°API = 141.5/SG - 131.5
Reference formula or conversion factor shown for context.
classification
Category assigned based on where the computed value falls on a defined scale. Check which standard or guideline defines these boundaries.