FreeKalc provides free, accurate online calculators for everyday money questions: how much of your salary you keep after tax, how much VAT is inside a price, and what a mortgage or loan really costs over its full term.
We started FreeKalc because most financial calculators are buried in signups, paywalls or outdated rates. Every tool here runs entirely in your browser — which makes it fast, private, and completely free. Nothing you type is ever uploaded to a server.
Our calculators cover the United States, the United Kingdom and major European countries, each using that country's own tax bands and VAT rates. We review the rates against official sources (IRS, HMRC, national tax authorities) at least once a year.
FreeKalc is funded by advertising, which keeps every tool free for everyone.