API Gravity Calculator

Calculate API Gravity

Formula

The formula to calculate the API gravity is:

\[ API G = \frac{141.5}{SG} - 131.5 \]

Where:

What is API Gravity?

API gravity is a scale used to measure the relative density of petroleum liquids with respect to temperature. The scale was developed by the American Petroleum Institute so that most petroleum fluids would fall between 10 and 70 API gravity, which helps simplify analysis.

Example Calculation

Let's assume the following value:

Using the formula to calculate the API gravity:

\[ API G = \frac{141.5}{0.85} - 131.5 \approx 34.76 \]

The API gravity is approximately 34.76.