Terms of Service

Last updated: 1 January 2026

Acceptance

By using Calculate Ability you agree to these terms. If you do not agree, please do not use the site.

Estimates only — no warranty

All calculators are provided for informational and planning purposes only. Results are estimates generated from the values you enter and from general industry formulas, averages and assumptions. They are provided on an "as is" and "as available" basis without warranties of any kind, express or implied, including accuracy, merchantability or fitness for a particular purpose.

Not professional advice

Nothing on this site constitutes engineering, architectural, legal, tax, accounting or financial advice. In particular:

Electrical results must be verified against the current edition of the National Electrical Code and your local amendments by a licensed electrician.
Structural, load-bearing and life-safety decisions require a licensed engineer or architect.
Material quantities should be confirmed with your supplier before ordering; waste factors vary by installer and site conditions.
Cost estimates are planning ranges, not bids. Obtain itemized quotes from licensed contractors.
Investment outputs are projections based on your assumptions and are not a prediction of actual returns. Real estate involves risk of loss.

Limitation of liability

To the maximum extent permitted by law, Calculate Ability and its operators are not liable for any direct, indirect, incidental, consequential or special damages arising from your use of, or reliance on, any calculator or content on this site — including material over-ordering, budget shortfalls, failed inspections, or investment losses.

Acceptable use

You may use these calculators freely for personal and commercial work. You may not scrape, republish or resell the site's content in bulk, attempt to disrupt the service, or misrepresent our estimates as certified professional analysis.

Advertising

This site displays third-party advertising. We do not endorse advertised products or services and are not responsible for the content of third-party sites.

Changes and availability

We may modify, add, remove or discontinue any calculator or these terms at any time, and we do not guarantee uninterrupted availability.