Thai Alphabet Romanizer

Convert Thai script to RTGS romanization instantly

Based on the Royal Thai General System of Transcription

Thai Text

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RTGS Romanization

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Examples

สวัสดี
sawatdi
Hello
ขอบคุณ
khop khun
Thank you
ประเทศไทย
prathet thai
Thailand
กรุงเทพมหานคร
krung thep maha nakhon
Bangkok
ภาษาไทย
phasa thai
Thai language
สถานีรถไฟ
sathani rot fai
Train station
อาหารไทย
ahan thai
Thai food
วัดพระแก้ว
wat phra kaeo
Wat Phra Kaew
หนึ่ง
nueng
One
ขอโทษ
kho thot
Excuse me/Sorry
ไม่เป็นไร
mai pen rai
No problem
รถยนต์
rot yon
Car
โรงแรม
rong raem
Hotel
ร้านอาหาร
ran ahan
Restaurant
จันทร์
chan
Monday/Moon
เครื่องบิน
khrueang bin
Airplane

About RTGS Romanization

What is RTGS?

The Royal Thai General System of Transcription (RTGS) is the official system for romanizing Thai script established by the Royal Thai Institute. It provides a standardized way to represent Thai characters using the Latin alphabet.

RTGS is commonly used in official documents, road signs, and academic publications to make Thai text accessible to non-Thai speakers.

Key Features

  • No tone marks (tones are not represented)
  • Accurate final consonant handling
  • Position-aware consonant romanization
  • Handles complex vowel combinations
  • Supports consonant clusters
  • Word-level exception handling
  • Real-time conversion with syllable awareness
  • Handles silent letters and special cases

Thai Punctuation

ThaiLatinName
...Paiyannoi (abbreviation)
Fongman (bird's eye)
:Angkhan (section end)
Khomut (document end)