Help Center
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General
What is Kamnuan?
Kamnuan is a free online calculator platform for Thai users, covering finance, health, date/time, and utility calculations.
Is this website really free?
Yes, all tools are 100% free with no signup required.
What languages are supported?
Thai and English are supported. Switch using the toggle in the top-right corner.
Tools
What tools are available?
There are 31 tools across 4 categories: Finance, Health, Date & Time, and Utility. See the full list on the homepage.
How accurate are the results?
Formulas reference official government data and financial standards. Results are estimates for initial planning.
Which year are the tax rates from?
Tax rates and fees reference 2024 data from the Thai Revenue Department and government agencies.
Can I suggest a new tool?
Yes! We welcome suggestions. Contact us through the form at the bottom of this page.
Data & Privacy
Is my data stored?
No. All calculations run in your browser. No data is sent to any server. 100% private.
Do I need to create an account?
No. You can use all tools immediately without signing up or providing personal information.
Does the site use cookies?
Only basic cookies for preferences like language. No tracking or advertising cookies.
Usage
Does it work on mobile?
Yes, the site is fully responsive and works great on phones, tablets, and desktops.
Can I install it as an app?
Yes! It supports PWA. Tap "Add to Home Screen" on your phone to install.
Does it work offline?
Partially. Previously visited tools can work offline via Service Worker caching.
How do I switch between dark and light mode?
Click the sun/moon icon in the top-right corner. Your preference will be remembered.