IAST Transliteration Guide

What is IAST?

IAST (International Alphabet of Sanskrit Transliteration) is a standardized system for transliterating Sanskrit and other Indic scripts into the Latin alphabet. It was developed in the 19th century and is widely used in academic and scholarly publications.

Why Use IAST?

  • Academic Standard - Used in scholarly publications worldwide
  • Precise Representation - Accurately represents Sanskrit sounds
  • Universal Accessibility - Can be typed on any keyboard
  • Search Engine Friendly - Easy to search and index

Vowels (स्वर - svara)

DevanagariIASTPronunciation
alike 'a' in 'father'
ālike 'a' in 'father' but longer
ilike 'i' in 'bit'
īlike 'ee' in 'see'
ulike 'u' in 'put'
ūlike 'oo' in 'moon'
like 'ri' in 'river'
like 'ri' but longer
like 'li' in 'million'
like 'li' but longer
elike 'e' in 'they'
ailike 'ai' in 'aisle'
olike 'o' in 'go'
aulike 'ow' in 'cow'

Consonants (व्यंजन - vyañjana)

DevanagariIASTPronunciation
kalike 'k' in 'kite'
khalike 'k' but with strong breath
galike 'g' in 'go'
ghalike 'g' but with strong breath
ṅalike 'ng' in 'sing'
calike 'ch' in 'church'
chalike 'ch' but with strong breath
jalike 'j' in 'jam'
jhalike 'j' but with strong breath
ñalike 'ny' in 'canyon'
ṭalike 't' but with tongue curled back
ṭhalike 'ṭ' but with strong breath
ḍalike 'd' but with tongue curled back
ḍhalike 'ḍ' but with strong breath
ṇalike 'n' but with tongue curled back
talike 't' in 'top'
thalike 't' but with strong breath
dalike 'd' in 'dog'
dhalike 'd' but with strong breath
nalike 'n' in 'no'
palike 'p' in 'pen'
phalike 'p' but with strong breath
balike 'b' in 'boy'
bhalike 'b' but with strong breath
malike 'm' in 'man'
yalike 'y' in 'yes'
ralike 'r' in 'run'
lalike 'l' in 'love'
valike 'v' in 'van'
śalike 'sh' in 'ship'
ṣalike 'sh' but with tongue curled back
salike 's' in 'sun'
halike 'h' in 'hat'

Special Characters

  • ं (anusvāra) → ṃ (nasal sound)
  • ः (visarga) → ḥ (aspirated h sound)
  • ् (virāma) → removes inherent 'a' sound

Common Examples

Basic Words

  • नमस्ते → namaste
  • संस्कृत → saṃskṛta
  • योग → yoga
  • कर्म → karma

Complex Words

  • धन्यवाद → dhanyavāda
  • स्वागतम् → svāgatam
  • शुभम् → śubham
  • ज्ञानम् → jñānam

Tips for IAST Usage

  1. Use diacritical marks - ā, ī, ū, ṛ, ṝ, ḷ, ḹ, ṃ, ṇ, ṭ, ḍ, ś, ṣ, ñ
  2. Preserve sandhi - Keep word boundaries clear
  3. Include punctuation - Use proper sentence structure
  4. Be consistent - Use the same system throughout

Practice Exercise

Convert these Devanagari words to IAST:

  1. आत्मन् → ātman
  2. ब्रह्मन् → brahman
  3. मनस् → manas
  4. बुद्धि → buddhi
  5. कर्म → karma

Conclusion

IAST is an essential tool for Sanskrit study and research. It provides a precise, standardized way to represent Sanskrit sounds in the Latin alphabet, making the language accessible to scholars and learners worldwide.