Terms of use

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Educational scope

Calculators and articles concern ideal Euclidean figures. They are educational aids, not certified engineering, surveying, medical or safety software. Check assumptions, units and answers before relying on results. Physical measurements, tolerances, material thickness and legal standards are not inferred by these tools.

Corrections and availability

Software and content may contain errors. Features may change, and uninterrupted service, a particular ranking or advertising outcome is not promised. Report concrete issues through the contact page.

Responsible use

Do not disrupt the service, attempt unauthorised access or infringe others’ rights. Reference links are provided for further learning and do not imply endorsement. Nothing here removes rights that applicable law does not permit us to exclude.