This policy explains how the Rai Ngan Wah website ("this site") collects, uses and discloses personal data. Because the data controller for this site is a legal entity registered in Poland, processing of personal data is governed primarily by the EU General Data Protection Regulation ("GDPR"). For users located in Thailand, this policy additionally complies with Thailand's Personal Data Protection Act B.E. 2562 (2019) ("PDPA").
The data controller for this site is GST; TIN: 7772602932; contact address 35/1 Maratonska St., 05-600 Grojec, Poland; email for personal-data matters [email protected].
This site provides a land-area conversion tool without storing calculator input on any server. Figures you enter are processed only in your own browser and never leave your device.
This site automatically collects usage data through cookies and similar technologies — such as approximate IP address, device and browser type, pages visited and on-site behaviour — for website analytics (via Google Analytics 4, deployed through Google Tag Manager) and to serve relevant advertising (via Google AdSense). Google Search Console is used to monitor the site's performance in Google search results and does not collect personal data from visitors directly. If you contact us by email, we keep the message and your email address only to reply to you.
This site is hosted on servers operated by SEOHOST Sp. z o.o., 30 Obornicka St., 60-689 Poznan, Poland, TIN: 9721323212. The hosting provider processes data as a data processor acting on the data controller's instructions.
Using this site involves sending requests to the server on which the site is stored. Every request sent to the server is recorded in the server logs. The logs include, among other things, your IP address, the server date and time, and information about the web browser and operating system you use. Logs are recorded and stored on the server. Data recorded in the server logs is not associated with the specific people using the site and is not used by us to identify you. Server logs are purely supporting material used to administer the site, and their contents are not disclosed to anyone other than persons authorised to administer the server.
For non-essential cookies (analytics and advertising cookies), we rely on your consent (Art. 6(1)(a) GDPR), given through the cookie banner. For messages you send us through the contact channel, we rely on our legitimate interest (Art. 6(1)(f) GDPR) in responding to your enquiry. You can accept or reject analytics and advertising cookies separately, either through the cookie banner or the "Cookie settings" link in the footer of every page.
The site uses cookies and similar technologies to analyse traffic and improve the experience. The third-party analytics provider (Google Analytics 4, via Google Tag Manager) may set its own cookies under its own privacy policy. Non-essential cookies only run after you click "Accept" on the cookie banner. You can clear your saved choice at any time by deleting this site's cookies through your browser settings, which will show the banner again on your next visit.
This site may show ads served through Google AdSense and its partner network. These providers may use cookies to serve ads based on your prior visits to this and other sites. You can manage ad personalisation at Google Ads Settings, and read more at Google's partner sites policy.
The Google tools used on this site (Analytics, Tag Manager, AdSense, Search Console) may process and store data on servers located outside the European Union and outside Thailand, including in the United States. Such transfers rely on the EU-U.S. Data Privacy Framework and/or Standard Contractual Clauses to which Google is a party, as set out in each provider's own policies.
Data collected via analytics and advertising cookies is retained for the period set by each provider (generally up to 14 months for Google Analytics, unless configured otherwise). Emails sent through the contact channel are kept only as long as needed to respond and close the matter.
Under the GDPR, you have the right to (1) access and request a copy of your personal data, (2) request correction of inaccurate data, (3) request erasure of your data ("the right to be forgotten"), (4) request restriction of processing, (5) object to processing, including direct marketing, (6) request data portability, and (7) withdraw consent at any time without affecting the lawfulness of processing carried out before withdrawal. This site does not carry out automated decision-making or profiling that produces legal effects on users. To exercise these rights, use the contact details in the "Contact" section below.
For users located in Thailand, the Personal Data Protection Act B.E. 2562 grants rights broadly equivalent to those under the GDPR above. These rights can be exercised through the same contact channel.
Users in the European Union have the right to lodge a complaint with Poland's data protection authority — the President of the Personal Data Protection Office, 2 Stawki St., 00-193 Warsaw, Poland. Users in Thailand have the right to lodge a complaint with Thailand's Personal Data Protection Committee (PDPC).
This policy may be updated from time to time. The most recent update date is shown in the header of this page.
Found a calculation error, have a suggestion, or a question about advertising? Reach us here.
Rai Ngan Wah is a Thai land-area conversion tool — rai, ngan, square wah, square metres, hectares and acres — built for anyone working with land, buying or selling property, or filling out a title deed, to get a figure quickly.
Conversion ratios follow Thailand's Land Department standards. This site is operated by GST and is not affiliated with any government agency.
This site is provided for educational and reference purposes only. Some of its content and calculations were built with the help of artificial intelligence (AI). Despite reasonable efforts to verify accuracy, figures or information shown may still contain errors.
Results from this calculator are for preliminary reference only. They are not an official survey result and do not replace a land survey carried out by Land Department officers.
The land-value calculation is an estimate based on a price per unit that you enter yourself — it is not a market appraisal or financial advice. Verify figures against the actual title deed and consult a professional before any transaction.