What this site is
Simplewoody is a collection of calculators and converters for everyday and professional use. We cover 22 areas including finance, housing, automotive, health and employment, and we keep adding more.
Every tool is free and requires no account. All calculations run in your own browser — the values you enter are never sent to a server or stored.
How our formulas are sourced
We follow these principles when building a tool.
· We build on published sources. Formulas are based on statutes and regulations, official rate tables published by government agencies, and public statistics.
· We state the source and the effective date. Values that change yearly — tax rates, contribution rates, statutory limits — carry the year they are based on.
· We localize by country. English pages use U.S. standards, Korean pages use Korean standards, and Japanese pages use Japanese standards.
These tools are for reference
Results from Simplewoody are for reference only and carry no legal weight. For areas where the outcome depends on your specific situation — taxes, law, employment, medical matters — please confirm with the relevant authority or a qualified professional before acting on a result.
Rules change and mistakes happen, so a result may differ from reality. If you spot something wrong, tell us and we will check and fix it.
Site information
Site Simplewoody
URL https://simplewoody.com
Operated by Simplewoody (independent operator)
Contact hyucks1993@gmail.com
Bug reports, requests for new calculators and partnership enquiries all go to the address above.