About

About ToleranceCalculator.Online

ToleranceCalculator.Online is a free engineering reference site focused on shaft and hole fit calculations, ISO-style tolerance interpretation, and practical manufacturing guidance.

The homepage is intentionally tool-first so engineers can calculate fit behavior quickly. Supporting pages explain how to read results, choose fit types, consider thermal expansion, and communicate tolerance choices to manufacturing and inspection teams.

For corrections, accessibility issues, or privacy requests, contact support@tolerancecalculator.online.