About FinCalc

FinCalc is a free web tool for loan, compound, currency, unit, and tax calculations.

FinCalc is a free, bilingual (Korean and English) collection of finance calculators. It's a fast, lightweight static website — calculate instantly in your browser, with no sign-up.

Every calculator runs entirely in your browser; your inputs are never sent to or stored on a server. We use standard financial formulas, but results are for reference only and do not replace professional advice.

Our tools

Get in touch

For suggestions or bug reports, visit our Contact page.

Frequently asked questions

Are the results accurate?

We use standard financial formulas and official rates, but results are for reference only. Confirm important decisions with a professional.

Is my input data stored?

No. All calculations run only in your browser — nothing is sent to or stored on our servers.

Is it free to use?

Yes, completely free, with no sign-up or login required.