About Engineering Desk Tools
Practical calculators and blank Excel records for electrical, instrumentation, mechanical and maintenance work.
How the tools work
Calculations run in your browser. Every tool shows its formula, units and assumptions. Source references are linked where applicable; simple unit and dimensional calculations show their method directly.
Use the right data
Inputs start blank. Check equipment documentation, measurement conditions and your site procedures before using a result for design or operation. The calculators provide estimates and learning support, with no equipment approval or certification.
Maintenance workbooks
Downloads contain blank records, formulas and dashboard summaries. Set task frequencies, tolerances, reorder levels and review steps to suit your equipment and maintenance strategy.