Contact

Contact ToolViking

Questions, corrections, accessibility feedback, and relevant partnership inquiries are welcome.

Email

hello@toolviking.com

Include the page URL and enough detail to reproduce a calculator or content issue. Do not send passwords, payment details, health data, or other sensitive information.

Corrections

Help us verify quickly

For calculation issues, include the inputs, result shown, expected result, browser, and a reliable source where the question depends on an external rule.

See the methodology and correction process for more detail.

Last updated: September 25, 2026