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Contact JobMath
Report a calculation issue, suggest a new calculator, or send a general question about the website.
Please include the calculator name, measurements entered, units selected, and the result you expected when reporting a calculation issue.
Questions JobMath can address
We welcome corrections, accessibility reports, broken-link reports, feature ideas, and questions about how a displayed formula works.
Project-specific advice
JobMath cannot approve a design, verify a structure, inspect a site, interpret local code for a specific project, or select a product on a user's behalf. Contact the appropriate contractor, designer, engineer, supplier, manufacturer, or local authority for those decisions.
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Messages may be retained as needed to respond, prevent abuse, and improve the site. Do not send passwords, payment information, government identifiers, or other sensitive information.