Engineering calculator reviewed for preliminary design use · Last updated: March 2026
EngiCompute is a free, browser-based engineering calculation platform built for plant design and chemical engineering professionals. Our tools cover pressure vessel sizing, pipe design, heat exchanger selection, compressor power, and more.
EngiCompute is an independent engineering calculation website created to make common preliminary engineering calculations faster and easier to access from a desktop or mobile device. The site is intended for engineers, students, and technical professionals who need a quick way to check basic relationships, units, and order-of-magnitude results without opening a large spreadsheet or specialist software package.
EngiCompute focuses on transparent calculations: equations, assumptions, units, limitations, and worked examples are shown wherever practical so that users can understand how a result is obtained rather than treating the calculator as a black box.
EngiCompute is an independent project and is not affiliated with, sponsored by, or endorsed by any employer, engineering company, ASME, API, or other standards organization. The tools are intended for education and preliminary estimation only and do not replace applicable codes, project specifications, professional engineering judgment, or an organization's formal design and review procedures.
For preliminary estimation and educational use only. Results may depend strongly on assumptions, input data, fluid or material properties, and the range of validity of the underlying equation. Verify critical calculations independently and follow the applicable code, specification, and formal engineering review process before using any result for design, procurement, fabrication, operation, or safety decisions.