No account required
You can use the calculators without creating an account. Standard server logs may be processed for security, performance, troubleshooting, and basic site operation.
Privacy
Privacy Policy
C8Calc is built for quick calculator use without requiring an account. This policy summarizes how calculator inputs, local preferences, and standard site data are handled.
Calculator inputs
Calculator inputs are used to display results in your browser. Avoid entering private, sensitive, or confidential project information into public planning tools.
Local unit preferences
Some calculators may remember your Imperial or Metric preference in your own browser using local storage. This helps show the unit system you selected last time.