Calculators

IBAN checker

Check IBAN length and MOD-97 checksum. Does not verify an account.

Free · No sign-up · No subscription

Your result appears here.

How it works

Paste an IBAN with or without spaces. The checker validates country format and checksum; it does not query a bank for account data.

Choose your inputs, check the result and download it if needed. Processing happens locally in your browser.

These tools do not send your inputs to a server. Your web host processes technical connection data when you visit the site.

Checks known country formats and checksum. A valid checksum does not prove that an account exists or identify its owner.

Is this tool free?

Yes. The available functions require no payment, account or subscription. Technical file limits are shown with the tool.

Calculate a percentage, a share or a percentage change.

Estimate net income with your own deduction rate. Not a payroll calculation.

Convert monthly pay and weekly hours to an average hourly wage.