Frequently asked questions
Are the calculators free? +
Yes. Every calculator is free to use, with no account and no limits.
Do you store the numbers I enter? +
No. All calculations run in your browser. The numbers you type are not sent to our servers.
Which currency do the calculators use? +
Results are shown with a dollar sign, but the math works the same for any currency. Enter amounts in your own currency and read the results in that currency.
Is this financial or tax advice? +
No. The calculators give estimates for information only. Your real numbers depend on your situation, local taxes and market conditions. For decisions with legal or tax consequences, talk to a qualified professional.
I found a mistake or want a new calculator. How do I tell you? +
Write to us through the contact page. We read every message and use the suggestions to decide which calculators to build next.