How We Verify Our Calculators

What “verified” means on this site

A page marked as reviewed means we checked the published method, source, assumptions, or calculator logic that the page relies on and tested representative inputs where applicable. It does not mean that a certified archery coach, pro shop technician, engineer, or manufacturer personally approved the page.

It also does not mean we physically tested every bow, arrow, broadhead, accessory, or product mentioned. When a decision depends on the condition or fit of real equipment, the current manufacturer documentation and hands-on inspection take priority over an online calculator.

Three kinds of calculator methods

1. Direct calculations

Some tools use transparent arithmetic or established physics equations. Examples include finished arrow weight, kinetic energy, momentum, and measured FOC. For these tools, our main checks are the equation, unit conversion, input definitions, rounding, and edge-case handling.

2. Manufacturer-guided calculations and lookups

Some tools depend on a current shaft chart, selector, bow specification, or manufacturer adjustment rule. In those cases we prefer the manufacturer or standards source itself and keep the result framed as a starting range when the source does not support a single universal answer.

3. Planning estimates

Some questions have no universal industry formula. A tool such as a starting bow-poundage planner may therefore use a conservative starting estimate. We label it clearly as an estimate instead of presenting it as an industry standard or a measurement of someone's physical ability.

How we choose sources

When a technical claim needs an external source, we generally prefer:

1. Current manufacturer documentation: selectors, manuals, specification pages, technical charts, and support documentation.
2. Standards or governing organizations: when a measurement or competition definition comes from a recognized standard or rule set.
3. Transparent physics and mathematics: when the result follows directly from measurable inputs and a published equation.
4. Secondary references: for context when a primary source is unavailable, while avoiding unsupported universal claims.

Examples of primary sources used on reviewed pages include current material from Easton, Gold Tip, Victory, Bear, Mathews, Bowtech, USA Archery, and other manufacturers or organizations relevant to the specific calculation. Source links are placed on technical pages when they materially support the method.

How we review a calculator or technical page

1. Identify the actual method. We separate direct formulas, chart lookups, estimates, and editorial guidance.
2. Check the source. Manufacturer-dependent claims are compared with the current primary source where practical.
3. Check definitions and units. Inputs such as finished arrow weight, cut shaft length, balance point, draw length, and speed must mean the same thing in the page and the source.
4. Test representative inputs. We compare calculator output with worked examples and test edge cases that could produce impossible or unsupported results.
5. Label assumptions and limits. When a result is only a starting estimate, the page should say so.
6. Keep visible guidance and code consistent. A worked example or FAQ should not contradict what the calculator actually returns.
7. Update the review date only after a substantive check. We do not change dates simply to make a page appear fresh.

What our process cannot verify remotely

Online calculations cannot directly inspect or assess:

• Your shooting form, anchor, release execution, or physical capability
• The condition, tune, tolerances, or modifications of your actual bow
• Whether an individual arrow or component is damaged
• Real chronograph speed unless you provide a measured value
• Current local hunting law or whether a shot is ethical in a specific situation
• Product quality or compatibility that requires hands-on inspection

For those decisions, use current manufacturer documentation, official regulations, range testing, and qualified in-person help as appropriate. See our Disclaimer for additional limitations.

Affiliate links do not set the calculation

Archery Calculators may earn commissions from qualifying purchases through affiliate links. Commission rate does not determine a formula, chart value, or source choice. A shopping link is an optional next step after the technical result; it is not evidence that a product is compatible with every setup.

We do not claim to personally test every linked product. Product availability, specifications, retailer programs, and prices can change, so visitors should verify the current manufacturer and retailer information before buying.

Corrections and update requests

If you find a calculation error, stale manufacturer value, broken source, or wording that overstates what a tool can determine, please contact us. The most useful report includes the page URL, exact inputs, actual result, expected result, and a current source supporting the correction.

Confirmed technical issues are corrected when identified. Because manufacturer pages and product lines change, no review date should be read as a guarantee that an external specification will never change afterward.

Related site information

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