Thai Letter Stroke Order: The 42 Letters in Use
Last updated: October 26, 2026
TL;DR: Write a Thai letter head first, then the body downward in one continuous line, then the tail or foot. The Ministry of Education's handwriting model makes the head one quarter of the letter's body. Printed letters do not: in four open Thai typefaces measured on 26 October 2026, the median head was 33.9% of the body, about a third.
What stroke order is, and why it matters
Stroke order is the sequence and direction of pen movements that draw a letter. The reference for Thai is the Ministry of Education's letter model, which the ministry adapted from an earlier set of letterforms into handwriting exercises for primary-school pupils nationwide from 1977 (พ.ศ. ๒๕๒๐), as a teachers' guide to the model records. Following it turns each letter from an arbitrary shape into a head, a body and an appendage.
The 42 letters in use run on a handful of rules, not 42 separate choreographies. Phayan is a Thai-script learning app that teaches the letters one at a time, and every letter card shows the letter in its printed form, drawn from a typeface's outline. That printed form is the one you read, but it is not the handwriting model: its head is larger, as the measurement below shows. Display type on logos, adverts and stylish menus often drops the head loop entirely, and reading Thai without the head is a separate skill you pick up later.
The three rules: head, body, appendages
The Ministry of Education's letter model (แบบตัวอักษรของกระทรวงศึกษาธิการ) reduces every letter to the same recipe:
- Draw the head first. The head is the small circle at the start of most letters (ข, ค, ม, น…), drawn in one motion; a few letters (ก, ธ) have no head and begin at the base of the letter instead. It is a circle, not a dot, and its size is part of the letter's identity: the model divides the letter's body into four parts and makes the round head one of them (หัวกลมมีขนาด ๑ ส่วน), a quarter of the body's height.
- Draw the body downward: a single stroke from the head toward the baseline, without lifting the pen. For most letters the head flows into the body in one continuous motion.
- Add the tail and foot last: the hooks, tails, and small lines that distinguish similar letters (the tail of ร, the hook of ง). A Thai teachers' guide to reading and writing is explicit about the order: pupils write the body of the letter first, then the foot, tail or inner line, starting at the beginning of the letter and drawing one continuous line to its end.
Direction is the part beginners break first: after the head, strokes run mostly downward or left to right, and the head circle is drawn in one continuous motion. Its direction is not the same for every letter; ThaiPod101's Thai Alphabet Made Easy puts it as "Some are written clockwise and some are written counter-clockwise." Letters without a head (ก, ธ) start at the base and work upward.
The 42 letters in use, by shape family
Rather than memorizing 42 sequences, learn the families; each family shares a body pattern and differs by appendage or length:
- Head + tail, ข ค ฆ ง ย: a head, a downstroke, and a tail that sweeps right (ก belongs to the same family but has no head circle; it starts at the base).
- Curly bodies, จ ฉ ช ซ ฌ ญ: a continuous curl that starts high and hooks under.
- Straight spines, ด ต ถ ท ธ ศ ษ ส: an upright spine, mostly with the head at top, slightly slanted in ด ต ศ ส, some with loops inside the spine (ด ต).
- Descenders, ฎ ฏ ฐ: the body continues below the baseline. The model takes the lower part two of its four parts below the letter (ส่วนล่างของ ฎ ฏ ฐ เลยตัวอักษรลงมา ๒ ส่วน), half the body's height, and a descender drawn too short loses part of the letter's identity.
- The complex ones, ภ (three stacked elements) and ญ (top tail plus descender), have the most parts to keep in order; everything else follows the head-body-tail recipe closely.
Two of the 44 symbols, ฃ and ฅ, are obsolete and appear only in old texts; the writing standard applies to the 42 letters in everyday use.
How big is the head in printed Thai?
Bigger than in the handwriting model, in every letter measured. On 26 October 2026 the 42 letters in use were rendered in four open typefaces from the Google Fonts repository and the head of each was measured against the typeface's body height; the school values in the last row come from the model's own proportions. Values are from the measurement's dataset.
| Typeface | Letters with a closed head | Head, share of body height (min / median / max) | Foot of ฎ ฏ ฐ below the baseline, share of body height |
|---|---|---|---|
| Sarabun Regular | 40 (none in ก ธ) | 30.3% / 35.0% / 45.7% | 53.0% to 53.8% |
| Sarabun Bold | 40 (none in ก ธ) | 32.5% / 37.2% / 41.0% | 53.0% to 53.8% |
| Niramit Regular | 40 (none in ก ธ) | 32.2% / 33.5% / 38.8% | 58.7% |
| Maitree Regular | 40 (none in ก ธ) | 30.4% / 32.6% / 33.0% | 43.8% to 46.4% |
| All four faces | 160 letter-face pairs | 30.3% / 33.9% / 45.7% | 43.8% to 58.7% |
| School model | not measured | 25.0% | 50.0% |
None of the 160 measured heads is at or below the model's quarter. The descenders sit on both sides of the model's half, from 43.8% in Maitree to 58.7% in Niramit. Only ก and ธ show no closed head in any of the four faces, which matches the rule that they start at the base. So when you copy a letter from a book, a sign or a letter card, draw the head a little smaller than you see it.
Three mistakes to watch for
- Dots instead of heads. The head is a circle drawn in one motion; the teachers' guide says plainly that it must be written round (การเขียนหัวพยัญชนะ ต้องเขียนให้กลม), so a filled dot or a blunt stub is not a head.
- Lifting between head and body. For most letters the head flows into the body without lifting the pen; the tail and foot are added last, after the body is done.
- Writing letters at the same height. Some letters sit on the baseline and some extend below it: a descender like ฎ drawn too short loses the length that is part of the letter's identity.
How to practice: study, trace, copy, write
Stroke order is a motor skill; it improves with the right sequence of practice, not with more repetition of the wrong motion:
- Study the letter two or three times, tracing the head, body, and tail with your eye. Phayan's letter cards show each letter in its printed form; look for where the head sits and where the tail ends, and remember the printed head is larger than the handwritten one.
- Trace over a printed letter on paper, following the same direction, three times.
- Copy it next to the model without tracing; compare head size and tail length, not just “close enough”.
- Write it from memory in the middle of a practice round, then check against the model. If it is wrong, go back to studying the model, not to tracing.
Practise alongside reading, so that every letter you write is one you also meet in the words you read.
How was this checked?
On 26 October 2026, the 42 letters in use were rendered at 200 px in Sarabun Regular and Bold, Niramit Regular and Maitree Regular with Python and Pillow, and the head of each letter (its topmost closed loop, plus the stroke around it) was measured against the typeface's body height. The same day, every quoted sentence from the Ministry of Education model, the teachers' guide, ThaiPod101 and ReadThai.Fun was re-read on its page. The results are in dataset.csv, and check.py re-runs the measurement and the quotes.
Frequently asked questions
How big should the head of a Thai letter be?
In the Ministry of Education's handwriting model, one quarter of the letter's body height. Printed typefaces draw it larger: across four open Thai typefaces measured on 26 October 2026, the head was 30.3% to 45.7% of the body height, median 33.9%. Phayan's letter cards show the printed form, so draw the head a little smaller than the card shows.
How do I write Thai letters correctly?
Follow the school method: draw the head first, then the body downward, then the tail and foot; most letters are one continuous stroke from head to tail, and the few without a head (ก, ธ) start at the base. That single recipe covers the 42 letters in everyday use. Phayan's letter cards show the letters in their printed forms; video guides like ThaiPod101's Thai Alphabet Made Easy demonstrate the strokes letter by letter.
Is Thai handwriting hard to learn?
The rules are few: most letters are one continuous motion after the head circle, and the whole alphabet runs on three rules. The real work is precision: head size, baseline height, and descender length carry meaning. Phayan's letter cards keep the letterforms in front of you for the letters you are learning. ReadThai.Fun describes itself as a free web app for learning to read Thai, and on 26 October 2026 none of the 42 pages in its sitemap was about handwriting or stroke order, so handwriting practice is up to you there.
What is the difference between Phayan and a handwriting workbook?
A Thai handwriting exercise book (แบบฝึกหัดคัดลายมือ) follows the Ministry of Education model directly, systematically, and in Thai. Phayan brings the letters one at a time, in their printed forms, with words to read and audio on every word. For drill on paper and the exact school proportions, the workbook is the better choice; for learning the letters while you read, Phayan is.
How should I practice stroke order?
Studying a model shows you the sequence and direction, but handwriting is a motor skill; study, then trace, then copy from memory. Phayan introduces letters one at a time alongside words to read, so the letter and the reading reinforce each other; a tutor or workbook covers the same ground with human feedback.
Writing the letters is one more way to make them stick, and the stroke families connect directly to how the script reads. If the letters are still new, back up to the beginner's map of the script, and once you can read a little, the transliteration guide explains when English letters help and when they mislead. The letter cards live inside the free levels of the learning path.