A free, fast and browser-based scientific reference & constants.
Search and reference exact CODATA physical and fundamental engineering constants.
Disclaimer: Informational engineering calculations only. Verify with standard professional engineering codes before critical application.
All calculations utilize exact textbook formulas and recognized physical constants. Results are computed to high precision with detailed step-by-step derivations.
Yes! Every input parameter is preserved in the URL query parameters. Click 'Share Calculation' or copy the link to bookmark or share your exact calculation.
Each calculation includes an explicit list of assumptions (such as constant acceleration, ideal components, or laminar flow). Review the notes section for details.