Practice Thai Vowels — Learn to Write All 32 Thai Vowel Forms
The Thai writing system contains 32 vowel forms (สระ, sa-ra), making them the second essential pillar after the 44 Thai consonants. Unlike English, where vowels are simply letters placed between consonants in a line, Thai vowels can appear above, below, before, after, or even wrapping around the consonant they modify. This positional complexity is what makes practicing Thai vowels so important — you need muscle memory not just for each vowel's shape, but for where it sits relative to the consonant. GorGai's interactive tracing tool lets you practice every vowel form on a drawing canvas with a semi-transparent guide, hear native pronunciation, and track your progress through all 32 forms. Whether you are a complete beginner or reviewing after a break, tracing is the fastest way to build confident, accurate Thai handwriting.
Complete List of All 32 Thai Vowels
The following table lists every Thai vowel form taught in the standard curriculum, including the symbol as it appears relative to a consonant placeholder (◌), the Thai name, romanized pronunciation, sound value, length (short or long), and the position where the vowel is written relative to the consonant.
| Symbol | Name | Romanized | Sound | Length | Position |
|---|---|---|---|---|---|
| ◌ะ | สระอะ | Sa-ra A | a | Short | After |
| ◌า | สระอา | Sa-ra Aa | aa | Long | After |
| ◌ิ | สระอิ | Sa-ra I | i | Short | Above |
| ◌ี | สระอี | Sa-ra Ee | ee | Long | Above |
| ◌ึ | สระอึ | Sa-ra Ue | ue | Short | Above |
| ◌ื | สระอื | Sa-ra Uee | uee | Long | Above |
| ◌ุ | สระอุ | Sa-ra U | u | Short | Below |
| ◌ู | สระอู | Sa-ra Oo | oo | Long | Below |
| เ◌ะ | สระเอะ | Sa-ra E | e | Short | Multi |
| เ◌ | สระเอ | Sa-ra Ay | ay | Long | Before |
| แ◌ะ | สระแอะ | Sa-ra Ae | ae | Short | Multi |
| แ◌ | สระแอ | Sa-ra Ae | ae | Long | Before |
| โ◌ะ | สระโอะ | Sa-ra O | o | Short | Multi |
| โ◌ | สระโอ | Sa-ra Oh | oh | Long | Before |
| เ◌าะ | สระเอาะ | Sa-ra Or | or | Short | Multi |
| เ◌า | สระเอา | Sa-ra Ao | ao | Long | Multi |
| ◌อ | สระออ | Sa-ra Or | or | Long | After |
| เ◌ิ | สระเอิ | Sa-ra Oe | er | Short | Multi |
| เ◌อ | สระเออ | Sa-ra Er | er | Long | Multi |
| เ◌ีย | สระเอีย | Sa-ra Ia | ia | Long | Multi |
| เ◌ือ | สระเอือ | Sa-ra Uea | uea | Long | Multi |
| ◌ัว | สระอัว | Sa-ra Ua | ua | Short | Multi |
| ◌ว | สระอว | Sa-ra Ua | ua | Long | After |
| ไ◌ | สระไอ | Sa-ra Ai Mai Ma-lai | ai | Long | Before |
| ใ◌ | สระใอ | Sa-ra Ai Mai Muan | ai | Long | Before |
| ◌ำ | สระอำ | Sa-ra Am | am | — | After |
| ฤ | สระฤ | Sa-ra Rue | rue | Short | — |
| ฤๅ | สระฤๅ | Sa-ra Rue | rue | Long | — |
| ฦ | สระฦ | Sa-ra Lue | lue | Short | — |
| ฦๅ | สระฦๅ | Sa-ra Lue | lue | Long | — |
| ◌ั | ไม้หันอากาศ | Mai Han A-kat | a | Short | Above |
| ◌็ | ไม้ไต่คู้ | Mai Tai Khu | — | Short | Above |
All 32 forms are available in GorGai's interactive practice mode. Use the length filter to focus on short or long vowels, or the progress filter to revisit vowels you previously got wrong.
The Thai Vowel Position System — Where Vowels Go
The most distinctive feature of Thai vowels is their positional writing system. Unlike English, where every letter follows the previous one in a straight line, Thai vowels can appear in five different positions around the consonant they belong to. Understanding these positions is critical for reading and writing Thai fluently.
After the Consonant (ขวา — right side)
These vowels are written to the right of the consonant, similar to how English works. The "after" vowels include า (aa), อ (or), and ำ (am). For example, กา (kaa) means "crow" — you write ก first, then า to its right. This is the most intuitive position for English speakers.
Above the Consonant (บน — on top)
Small vowel marks written above the consonant include ิ (i), ี (ee), ึ (ue), ื (uee), ั (mai han akat), and ็ (mai tai khu). These are among the most common vowels in everyday Thai text. For example, กี่ (gee, meaning "how many") places the ี mark directly above ก. When a tone mark is also present, the vowel goes above the consonant and the tone mark goes above the vowel.
Below the Consonant (ล่าง — underneath)
Only two vowels sit below the consonant: อุ (u, short) and อู (oo, long). They are small curved marks written underneath. For example, กุ (gu) and กู (goo) differ only in the size of the curve below ก. These are visually subtle, so careful tracing practice helps you distinguish them.
Before the Consonant (ซ้าย — left side)
This is the position that confuses English speakers the most. Five vowels — เ (ay), แ (ae), โ (oh), ไ (ai, mai malai), and ใ (ai, mai muan) — are written to the left of the consonant but pronounced after it. For example, เก is pronounced "gay" (ก + เ), not "ay-g." You must read the consonant first, then apply the vowel sound. This left-placement convention was inherited from the Khmer script. Once you internalize this rule, reading speed improves dramatically.
Multi-Position (หลายตำแหน่ง — multiple places)
The most complex vowels place components in two or three positions around the consonant simultaneously. Examples include เ◌ะ (e, before + after), เ◌า (ao, before + after), เ◌ีย (ia, before + above + after), เ◌ือ (uea, before + above + after), and ◌ัว (ua, above + after). For example, เกา (gao, meaning "old") has เ before ก and า after it. These compound vowels require the most practice because you must coordinate marks in multiple positions for a single syllable.
Short and Long Vowel Pairs — Why Length Matters in Thai
One of the most important features of the Thai vowel system is the distinction between short and long vowels. Most Thai vowels come in pairs that share the same basic sound quality but differ in how long you hold the sound. This is not just a subtle pronunciation detail — vowel length changes the meaning of words entirely.
Short/Long Pairs at a Glance
| Short Vowel | Long Vowel | Sound |
|---|---|---|
| ◌ะ (a) | ◌า (aa) | a / aa |
| ◌ิ (i) | ◌ี (ee) | i / ee |
| ◌ึ (ue) | ◌ื (uee) | ue / uee |
| ◌ุ (u) | ◌ู (oo) | u / oo |
| เ◌ะ (e) | เ◌ (ay) | e / ay |
| แ◌ะ (ae) | แ◌ (ae) | ae (short) / ae (long) |
| โ◌ะ (o) | โ◌ (oh) | o / oh |
| เ◌าะ (or) | ◌อ (or) | or (short) / or (long) |
| เ◌ิ (oe) | เ◌อ (er) | er (short) / er (long) |
How Length Changes Meaning
Consider these minimal pairs where only the vowel length differs:
- กะ (ka, to estimate) vs. กา (kaa, crow) — short อะ vs. long อา
- กิ (ki, branch) vs. กี่ (gee, how many) — short อิ vs. long อี
- ตุ (tu) vs. ตู้ (dtoo, cabinet/closet) — short อุ vs. long อู
Beyond meaning, vowel length interacts with Thai tone rules in an important way. In "dead" syllables (those ending in a stop consonant like ก, บ, or ด), short vowels produce a different default tone than long vowels. Specifically, short vowels in dead syllables with a mid-class initial consonant take a low tone, while long vowels in the same environment take a falling tone. This is why mastering the short/long distinction is essential not just for vocabulary but for correct pronunciation of tones. You can explore these rules further on the Thai Tones page.
Special Thai Vowels That Don't Follow the Rules
Several Thai vowels are irregular or historically unique. These require extra attention because they do not fit neatly into the position and pairing system described above.
ไ◌ (ไม้มลาย) vs. ใ◌ (ไม้ม้วน) — The Two "Ai" Vowels
Both ไ and ใ produce the same "ai" sound and both are written before the consonant. The difference is purely historical. ใ (mai muan, "curled") is used in only 20 specific Thai words — a famous list that every Thai student memorizes. All other words with the "ai" sound use ไ (mai malai, "silk-thread"). There is no pronunciation difference whatsoever; you simply must know which words use ใ. Common ใ words include ใจ (jai, heart/mind), ใหม่ (mai, new), ใช้ (chai, to use), ใน (nai, in/inside), and ใหญ่ (yai, big).
อำ (สระอำ) — The Combined Vowel
อำ is always pronounced "am" and is written as a single unit after the consonant. It behaves unusually because it combines what would logically be a vowel + final consonant (า + ม) into one symbol. In Thai phonology, อำ is treated as a closed syllable (ending with the ม sound), which affects tone rules. You cannot separate อำ into parts — it is always written and read as one unit.
ฤ / ฤๅ (สระฤ / สระฤๅ) — Sanskrit Vowels
ฤ (short) and ฤๅ (long) are vowels borrowed from Sanskrit. Unlike all other Thai vowels, they function as complete syllables on their own — they do not need a consonant. ฤ is pronounced "rue" (or sometimes "ri" in older loanwords) and appears in common words like ฤดู (rue-doo, season) and ฤทธิ์ (rit, power). ฤๅ (rue, long) is rare in modern Thai and found mostly in literary or royal language, such as ฤๅษี (rue-see, hermit).
ฦ / ฦๅ (สระฦ / สระฦๅ) — Obsolete Vowels
ฦ (short "lue") and ฦๅ (long "lue") are now obsolete and no longer used in modern Thai writing. They were originally borrowed from Sanskrit alongside ฤ, but fell out of use centuries ago. They are included in the standard 32-vowel count for completeness and appear in Unicode, but you will not encounter them in contemporary text. GorGai includes them so you can recognize them if you see them in historical documents or reference materials.
◌ั (ไม้หันอากาศ, Mai Han Akat) — The Shortening Mark
Mai han akat is a small mark written above the consonant that indicates a short "a" vowel sound. It always appears with a final consonant — for example, กัน (gan, to prevent) and มัน (man, it/oily). It is essentially the short form of อา used when the syllable has a final consonant. Without mai han akat, you would need to write อะ separately.
◌็ (ไม้ไต่คู้, Mai Tai Khu) — The Vowel Shortener
Mai tai khu is a mark written above the consonant that shortens certain vowels. It most commonly appears with เ to create a short "e" sound in closed syllables, as in เก็บ (gep, to collect/keep). It can also shorten other vowels in specific contexts. Think of it as a general "make this vowel short" indicator.
How to Practice Thai Vowels Effectively — Step by Step
Learning all 32 Thai vowels can feel overwhelming, but a structured approach makes it manageable. Here is a proven step-by-step strategy that works well with GorGai's practice tools.
Step 1: Start with Single-Position Vowels
Begin with vowels that only appear in one position — "after" vowels (า, ะ, ำ), "above" vowels (ิ, ี, ึ, ื), and "below" vowels (อุ, อู). These are the simplest because each mark goes in exactly one place relative to the consonant. Trace each one multiple times until the shape feels natural.
Step 2: Learn Before-Consonant Vowels
Next, practice เ, แ, โ, ไ, and ใ. These vowels are written to the left of the consonant but pronounced after it — the biggest conceptual hurdle for English speakers. Trace them while saying the consonant + vowel sound aloud to build the association between visual position and pronunciation order.
Step 3: Tackle Multi-Position Vowels Last
Compound vowels like เ◌ะ, เ◌า, เ◌ีย, เ◌ือ, and ◌ัว are the most complex because they place marks in two or three positions simultaneously. By the time you reach these, you will already be familiar with the individual components from Steps 1 and 2, making the compounds much easier to understand.
Step 4: Always Practice Short/Long Pairs Together
When you learn อะ, immediately also practice อา. When you learn อิ, practice อี right after. Studying pairs side by side helps you internalize the visual differences and reinforces the concept that length changes meaning. Use GorGai's length filter to toggle between short and long sets.
Step 5: Use the Position Filter in GorGai
GorGai lets you filter vowels by position type. Focus on one position category at a time until you are comfortable, then mix them together. The progress filter also lets you revisit only the vowels you previously got wrong, making review sessions efficient.
Step 6: Move to Write Mode, Then Read Mode
Once you can trace all 32 vowels confidently, switch to Write Mode where the guide is removed and you draw from memory. After mastering writing, move to Read Mode where you see a vowel and must recall its name, sound, and properties. This three-stage progression (trace, write, read) builds deep retention.
Step 7: Apply to Real Words
The final step is recognizing vowels in actual Thai words. Visit the Read Thai Words page to practice reading words that use the vowels you have learned. Each word card shows a character breakdown grid so you can see exactly which vowel pattern is present and where each component sits. You can also explore how vowels interact with tone rules on the Thai Tones page, and use the Thai Alphabet Chart as a quick reference.
Thai Vowels FAQ
How many vowels are in the Thai alphabet?
The Thai alphabet has 32 vowel forms (สระ). These include 18 core vowels organized in short/long pairs, several multi-position compound vowels, two special vowels borrowed from Sanskrit (ฤ and ฦ), and two shortening marks (ไม้หันอากาศ and ไม้ไต่คู้). When counting the long forms ฤๅ and ฦๅ, the total comes to 32 distinct symbols taught in Thai schools.
What are Thai vowel positions?
Thai vowels are written in five positions relative to the consonant they modify. "After" vowels (such as า, อ, ำ) appear to the right. "Above" vowels (such as ิ, ี, ึ, ื) are small marks written above the consonant. "Below" vowels (อุ, อู) sit underneath. "Before" vowels (เ, แ, โ, ไ, ใ) are written to the left of the consonant but pronounced after it — this is the most confusing aspect for English speakers. "Multi-position" vowels like เ◌า and เ◌ีย place parts in multiple positions around the consonant.
What is the difference between short and long Thai vowels?
Most Thai vowels come in short/long pairs that share the same basic sound but differ in duration. For example, อะ (short "a") pairs with อา (long "aa"), and อิ (short "i") pairs with อี (long "ee"). Vowel length directly affects meaning — กะ (ka, to estimate) and กา (kaa, crow) are completely different words. Length also interacts with Thai tone rules: short vowels in dead syllables follow different tone patterns than long vowels.
Why do Thai vowels appear before consonants?
Five Thai vowels — เ, แ, โ, ไ, and ใ — are written to the left of the consonant even though they are pronounced after it. This is a feature inherited from the Khmer script that King Ramkhamhaeng adapted when creating the Thai alphabet in 1283. You read the consonant first, then apply the vowel sound. For example, เก is read as "gay" (ก + เ), not "ay-g." This left-placement convention is one of the biggest adjustments for learners coming from left-to-right alphabets.
What does the ◌ symbol mean in Thai vowels?
The dotted circle ◌ is a placeholder that shows where the consonant goes relative to the vowel mark. It is not an actual Thai character — it is a typographic convention used in charts and textbooks. For example, เ◌ means the vowel เ is written before the consonant, while ◌า means า is written after. When you see ◌ิ, the mark sits above the consonant position. This notation helps learners understand the spatial relationship between vowels and consonants.
How do I practice writing Thai vowels?
Start by tracing vowel forms over a guide — GorGai's practice mode shows a semi-transparent outline you draw over on an interactive canvas. Begin with single-position vowels (after, above, below) since they are simplest, then move to before-consonant vowels, and finally tackle multi-position compound vowels. Always practice short/long pairs together so you internalize the visual differences. Once comfortable tracing, switch to Write Mode (drawing from memory) and then Read Mode (recognition flashcards).
What are the special Thai vowels (ฤ, ใ, ไ, อำ)?
Several Thai vowels break the normal rules. ฤ and ฤๅ are vowels borrowed from Sanskrit that function as standalone syllables (pronounced "rue"), while ฦ and ฦๅ ("lue") are now obsolete. ใ (ไม้ม้วน) and ไ (ไม้มลาย) both produce the "ai" sound, but ใ is used in only 20 specific Thai words — students must memorize this list. อำ (สระอำ) combines a vowel mark with the อ character and is always pronounced "am." These irregular forms require special attention when studying.
Are Thai vowels harder to learn than consonants?
Many learners find Thai vowels more challenging than consonants for several reasons. First, vowels appear in five different positions rather than always following left-to-right order. Second, the short/long distinction does not exist in most European languages, so training your ear and hand takes time. Third, multi-position vowels like เ◌ีย require writing marks in three places around a single consonant. However, the 32 vowel forms are fewer than the 44 consonants, and with consistent tracing practice the patterns become intuitive within a few weeks.
About This Tool
GorGai is a free, open-source Thai alphabet learning tool that follows the Royal Institute of Thailand standards for vowel names, romanization, and classification. All 32 vowel forms use the standard Thai names (e.g., สระอะ, สระอา) and the position/length metadata matches official Thai language curriculum materials. The app works entirely in your browser with no account or signup required, and it functions offline once loaded — ideal for practicing on the go. Audio pronunciation uses native Thai speech synthesis. Your progress is saved locally in your browser so you can pick up exactly where you left off.