Download your PDF
API Gravity and Specific Gravity Calculator result sheet — free, supported by sponsors. Your download button appears in 20 seconds.
This free download is supported by sponsors — continuing in
20
Your file is generated in your browser when you choose Download — nothing is uploaded. If this calculator returns enough numeric data, the export also includes its best-fit chart alongside the readable table.
WorldCalculate result export
API Gravity and Specific Gravity Calculator — result sheet
Convert petroleum specific gravity at 60 °F into API gravity, or reverse the relation for a transparent planning check.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: API gravity = 141.5/specific gravity at 60 °F − 131.5; specific gravity = 141.5/(API gravity + 131.5).
API gravity is an industry scale for petroleum liquids. A larger degree value means a lower specific gravity and therefore a lighter liquid on this reference scale.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Specific gravity at 60 °F — relative to water; minimum 0.01; maximum 20
Worked example
| Input | Value |
|---|---|
| Specific gravity at 60 °F | 0.85 |
API gravity ≈ 34.97° API; the reverse specific gravity is 0.85.
Assumptions and limits
- Specific gravity is referenced to water at 60 °F/60 °F, matching the standard petroleum convention.
- The input is a dimensionless specific gravity, not density in kg/m³.
- This is a conversion and classification aid; it does not determine price, quality, viscosity, or a legal product specification.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
No saved result was found. Please run the calculation first, then choose Download again.