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
अalike 'a' in 'father'
आālike 'a' in 'father' but longer
इilike 'i' in 'bit'
ईīlike 'ee' in 'see'
उulike 'u' in 'put'
ऊūlike 'oo' in 'moon'
ऋṛlike 'ri' in 'river'
ॠṝlike 'ri' but longer
ऌḷlike 'li' in 'million'
ॡḹlike 'li' but longer
एelike 'e' in 'they'
ऐailike 'ai' in 'aisle'
ओolike 'o' in 'go'
औaulike 'ow' in 'cow'

Consonants (व्यंजन - vyañjana)

DevanagariIASTPronunciation
कkalike 'k' in 'kite'
खkhalike 'k' but with strong breath
गgalike 'g' in 'go'
घghalike 'g' but with strong breath
ङṅalike 'ng' in 'sing'
चcalike 'ch' in 'church'
छchalike 'ch' but with strong breath
जjalike 'j' in 'jam'
झjhalike 'j' but with strong breath
ञñalike 'ny' in 'canyon'
टṭalike 't' but with tongue curled back
ठṭhalike 'ṭ' but with strong breath
डḍalike 'd' but with tongue curled back
ढḍhalike 'ḍ' but with strong breath
णṇalike 'n' but with tongue curled back
तtalike 't' in 'top'
थthalike 't' but with strong breath
दdalike 'd' in 'dog'
धdhalike 'd' but with strong breath
नnalike 'n' in 'no'
पpalike 'p' in 'pen'
फphalike 'p' but with strong breath
बbalike 'b' in 'boy'
भbhalike 'b' but with strong breath
मmalike 'm' in 'man'
यyalike 'y' in 'yes'
रralike 'r' in 'run'
लlalike 'l' in 'love'
वvalike 'v' in 'van'
शśalike 'sh' in 'ship'
षṣalike 'sh' but with tongue curled back
सsalike 's' in 'sun'
हhalike '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.