Terms of Use

Free to use

Anyone can use the site free of charge, with no sign-up. Running costs are covered by advertising.

Tools may change or disappear without notice, and the site may be briefly unavailable for maintenance or because something broke. No promise is made that a particular feature will remain available.

Results are estimates for reference

A result is an estimate produced from commonly known formulas and published figures. Real amounts depend on individual circumstances, on the region, and on when the rules applied.

Nothing here is legal, medical, tax or financial advice, and none of it replaces the judgement of a professional.

Have important decisions confirmed

Where the outcome can cost you — pay, taxes, insurance, health — follow the confirmation of the relevant authority or a professional.

If a figure here disagrees with what an authority tells you, the authority is right. Tell us about it and this side gets fixed.

Limits of liability

Every effort goes into getting the figures right, but accuracy, completeness and currency are not guaranteed.

To the extent the law allows, no liability is accepted for loss arising from decisions made in reliance on this site. Report anything wrong and it will be corrected.

Using the content

Personal use, linking, and quoting a result are all fine. When quoting, name the source and link to the page it came from.

Please do not do the following.

• Scraping pages automatically to reproduce them in bulk
• Republishing the site's content as-is at another address
• Placing a burden on the service with excessive automated requests

External links and advertising

The site contains links that lead to other sites, and it carries advertising.

No responsibility is taken for the content of those sites or for any dealings you have there. Their own terms and privacy policies apply.

If these terms change

When something changes, this page is edited and the date below is moved up with it.

Continuing to use the site after a change means you accept the new wording.

Governing law

These terms are interpreted and applied under the laws of the Republic of Korea, and the courts of the Republic of Korea have jurisdiction over any dispute.