Every Thai course, web site or dictionary will teach you looped Thai letters. And then you go out there and find that every second label, billboard or sign uses loopless Thai.
So here’s a conversion table, sorted in descending order of frequency in the Thai Wikipedia:
| Loopless | Looped | Name |
| า | า | SARA AA |
| น | น | NO NU |
| ร | ร | RO RUA |
| อ | อ | O ANG |
| ก | ก | KO KAI |
| เ | เ | SARA E |
| ง | ง | NGO NGU |
| ◌่ | ◌่ | MAI EK |
| ม | ม | MO MA |
| ◌ั | ◌ั | MAI HAN-AKAT |
| ย | ย | YO YAK |
| ◌ี | ◌ี | SARA II |
| ◌้ | ◌้ | MAI THO |
| ล | ล | LO LING |
| ว | ว | WO WAEN |
| ◌ิ | ◌ิ | SARA I |
| ท | ท | THO THAHAN |
| ด | ด | DO DEK |
| ส | ส | SO SUA |
| ต | ต | TO TAO |
| ะ | ะ | SARA A |
| บ | บ | BO BAIMAI |
| ป | ป | PO PLA |
| ค | ค | KHO KHWAI |
| ห | ห | HO HIP |
| แ | แ | SARA AE |
| พ | พ | PHO PHAN |
| จ | จ | CHO CHAN |
| ◌์ | ◌์ | THANTHAKHAT |
| ช | ช | CHO CHANG |
| ข | ข | KHO KHAI |
| ◌ุ | ◌ุ | SARA U |
| ใ | ใ | SARA AI MAIMUAN |
| ◌ื | ◌ื | SARA UEE |
| ไ | ไ | SARA AI MAIMALAI |
| โ | โ | SARA O |
| ◌็ | ◌็ | MAITAIKHU |
| ◌ู | ◌ู | SARA UU |
| ศ | ศ | SO SALA |
| ำ | ำ | SARA AM |
| ◌ึ | ◌ึ | SARA UE |
| ซ | ซ | SO SO |
| ถ | ถ | THO THUNG |
| ธ | ธ | THO THONG |
| ภ | ภ | PHO SAMPHAO |
| ณ | ณ | NO NEN |
| ษ | ษ | SO RUSI |
| ผ | ผ | PHO PHUNG |
| ญ | ญ | YO YING |
| ฟ | ฟ | FO FAN |
| ฐ | ฐ | THO THAN |
| ฮ | ฮ | HO NOKHUK |
| ฉ | ฉ | CHO CHING |
| ฤ | ฤ | RU |
| ๆ | ๆ | MAIYAMOK |
| ฝ | ฝ | FO FA |
| ฎ | ฎ | DO CHADA |
| ฏ | ฏ | TO PATAK |
| ฒ | ฒ | THO PHUTHAO |
| ◌๊ | ◌๊ | MAI TRI |
| ฑ | ฑ | THO NANGMONTHO |
| ฯ | ฯ | PAIYANNOI |
| ฬ | ฬ | LO CHULA |
| ฆ | ฆ | KHO RAKHANG |
| ◌๋ | ◌๋ | MAI CHATTAWA |