Methodology

From inputs to a result

1. We check required values, allowed ranges and combinations. If information is missing, we ask for it or show only the results we can calculate.
2. We convert inputs to consistent units, such as kilograms to grams or data amounts to the same unit. Check the input labels to see whether travel is one way or round trip, and whether costs are daily or monthly.
3. We apply the tool's formula to your inputs and selected assumptions. Efficiency, losses, reserves and variation are included only in tools that use them. We do not assign an arbitrary probability to every result.
4. We display the result in the appropriate units and round it to the precision shown. Rounding the display is separate from converting units during the calculation. We show whole counts, such as full phone charges, separately from partial amounts.

Your inputs and default assumptions

Measured capacity, usage and costs are useful only to the extent that the inputs are accurate. Prefilled values and presets are editable examples, not product guarantees, market averages or personal recommendations. Your selected settings still apply when you collapse that section. Read the assumptions, omitted items and input conditions alongside the result.

Each tool explains the meaning of a blank optional value versus zero. Housing comparisons do not invent average costs for blank optional amounts; some periods use the stated default assumptions. Unconfirmed resignation-settlement items are not presented as confirmed payments.

How to read the sources

Korean employment calculations check the scope and effective dates of laws and official guidance. Product records prioritize manufacturer and regulatory sources; secondary or estimated capacity values retain those labels. An official source does not guarantee your inputs or every computed result.

• Korean Ministry of Employment and Labor: severance calculation — applies to South Korea. Also check the tool's references for individual rules.
• Apple's iPhone model identification reference — identifies models; it is not evidence for every battery capacity in mAh.

Find each model's scope in its calculation method, assumptions, FAQs and source references. Power-bank and phone sources · Resignation rules for South Korea · Housing comparison assumptions

Examples you can check independently

Checks and the meaning of dates

Unit tests check example calculations, unit conversions, zero values, boundaries and invalid combinations. Changed interfaces are also checked for input, results and saved-state restoration. Passing these tests does not guarantee correct results in every real-world situation or mean that an expert has reviewed the tool.

This page's last-updated date refers to edits to this explanation. A tool's last-reviewed date refers to its calculation content; a source's checked date records that source check; an official version or effective date belongs to the underlying rule or document. Deploying the site does not update every date or imply automatic review.

Rules, schedules, product condition and individual circumstances affect results. Check the scope and current official material before important decisions. To report an error, include the tool URL, expected behavior and a non-sensitive example, and contact furrygarten7@gmail.com.