Last updated 24 October 2026.
What you type
All calculations run in your browser. The figures you enter are not sent to us, unless you choose to send a report.
Reports about wrong numbers
If you use the "Number looks wrong?" form, we store what you write there, the figures you entered on that page, the result it showed, the page address and the date. Your email is stored only if you type it in, and only used to reply to you. To stop spam we keep a scrambled (hashed) version of your IP address, which cannot be turned back into the address, and we may use Cloudflare Turnstile to check you're a person. Reports are stored on Cloudflare's servers and used only to check and fix the calculators. Ask us at the address on the contact page and we'll delete yours.
Advertising and cookies
KiraDuit is free because it shows ads. We use Google AdSense, a third-party vendor that uses cookies to serve ads based on your previous visits to this and other websites. Google's use of advertising cookies lets it and its partners serve ads to you based on those visits.
You can opt out of personalised advertising in Google Ads Settings, or opt out of some third-party vendors' cookies at aboutads.info. Read more in how Google uses information from sites that use its services.
Analytics
We use Cloudflare Web Analytics, which counts page views without cookies and without tracking you across sites.
Your rights
Under Malaysia's Personal Data Protection Act 2010 you may ask what personal data we hold about you. Apart from emails and reports you send us, we hold none. Contact us at the address on the contact page.