Terms of use and sale

Last updated: 24 October 2026.

Who we are

GaugeMath (gaugemath.com) is run by an individual in Romania. Contact: [email protected].

Free calculators

The calculators on this site are free to use. They apply published methods, such as the GUM, EA-4/02 and the NIST/SEMATECH e-Handbook, to the values you enter, and each tool page explains its method and limits. Results are provided as is. Choosing the right inputs, model and method for your measurement or process, and checking results against your own procedures, remains your responsibility. GaugeMath is not liable for decisions made on the basis of a result, to the extent the law allows.

Buying a template

Templates are digital downloads, such as Excel workbooks. Payments are processed by our payment and reseller partner, which may act as the merchant of record: the seller named on your receipt handles the payment, the invoice and the sales tax or VAT that applies in your country. Prices are shown before you pay.

You receive a download link by email right after payment. If it does not arrive, write to [email protected] with your order number.

Licence

A purchase gives a licence to use the template within your own organisation, for any number of your own measurements, reports and audits. You may change the template for your own use. You may not resell, share publicly or redistribute it, or offer it as part of another product.

Refunds

See the refund policy.

Changes

These terms may be updated; the date at the top shows the current version. Purchases are governed by the version in force on the day of purchase.