Contact
If you have found a calculation error, spotted a rate that is out of date, want to suggest a new calculator, or have any other question, please write to the address below.
Every message is read and we reply as quickly as we can. If you are reporting a calculation error, please include the page name and the numbers you entered — it makes the problem much faster to track down. Messages in English or Thai are both fine.
Site maintained by
Chavarit Homjit (ชวลิต หอมจิตร์)