EngineeringFormulaEngineeringFormula
Contact
Pick the option closest to why you're reaching out - it opens a pre-addressed email so nothing gets lost in translation.
General Question
Anything about the site, a calculator, or how something works that doesn't fit the categories below.
Email us about this →Report a Calculator Error
The most useful report includes: the calculator's URL, the values and units you entered, the result you expected, the result you actually got, and a source or reference if you have one.
Email us about this →Suggest a Calculator
A formula or calculator you'd like to see added to the site.
Email us about this →Technical Feedback
Something broken, confusing, or wrong on the site itself - layout, a broken link, mobile display, and so on.
Email us about this →Prefer to write it yourself instead? You can reach EngineeringFormula directly at contact@engineeringformula.net.
What makes a report actionable
For calculator issues, include the exact page URL, every input value and unit, the solve mode you selected, and what result you expected. Screenshots are useful, but the typed values matter most because they let the calculation be reproduced and tested instead of guessed from an image.
Response expectations
EngineeringFormula is maintained as a technical reference site, not a consulting desk. Reports that point to a reproducible formula, unit, or page problem are prioritized for correction; project-specific design decisions should still be reviewed by a qualified professional.