A small network of honest calculators.

Who built this

BenchCalcs is published, built, and maintained by Andromeda Kinship. Andromeda Kinship is responsible for the site's editorial decisions, calculator code, source review, corrections, and commercial relationships. The focus is depth over breadth: 40 tools audited carefully, not five hundred made shallow.

Work is credited to the BenchCalcs team at the organization level. The site does not attach invented personal biographies, licenses, or professional credentials to its work. Read the editorial and corrections policy for the review process behind calculators and guides.

Reach the operator at [email protected].

How the math is built

Each calculator has a pure TypeScript calculation module with explicit regression tests. Calculation logic, source-backed inputs, and page rendering must pass the automated release checks before a production deployment. The formulas and assumptions draw on references such as ACI 318, ADA 2010 Standards for Accessible Design, NREL National Solar Radiation Database, USDA hardiness maps, Lincoln Electric and Miller Electric manufacturer datasheets, and additive manufacturer publications. Math is not copyrightable (Baker v. Selden); proprietary table layouts are not reproduced.

A passing test is not proof that an estimate fits every real project. Calculator pages identify important assumptions and practical limits, and regulated or safety-sensitive decisions should be confirmed against current local requirements or with a qualified professional.

Data licensing

The data sources and licensing page lists the primary regulatory, licensing-sensitive, and technical references that need centralized attribution. Calculator pages also explain their formula, assumptions, and model-review date.

Review and corrections

Versioned source dates, scheduled freshness checks, and source-link monitoring help surface material that needs another look. Dates change only when the underlying model, source, code, or explanation receives a meaningful review—not merely because the site was rebuilt.

If you find an error, email [email protected] with the page, inputs, expected result, and supporting reference. A substantiated correction is checked against its source and tests before release. The full procedure is in the corrections section of the editorial policy.

Affiliate disclosure

Most calculators link to a small set of vendor products and services relevant to the calculation. Some of those links pay a small commission if you make a purchase. Affiliate links are marked rel="nofollow sponsored" per Google's link-attribution guidelines. The full disclosure lives on the disclosure page.

What's intentionally not here

• No login or account. Calculator math runs locally. Copying a share link places the current non-empty inputs in its URL, which the recipient and ordinary network or hosting services may see.
• Limited first-party analytics. Cloudflare Web Analytics is enabled through automatic setup and described by Cloudflare as cookie-free. Hosting and advertising providers may still process request, device, and advertising data as explained in the privacy policy.
• No newsletters. There is no email signup anywhere on the site.
• No unattended publishing. AI tooling may assist a draft, but generated content cannot reach production without human factual and editorial review.

If you find a math error

Email [email protected] with the calculator, the inputs, your expected output, and the reference you used. That evidence lets the operator reproduce the case and verify any correction without guessing.