Vowel length is the single biggest factor in getting clean Hindi output. Short vs. long vowels change words entirely — here's the cheat sheet.
Why vowel length matters so much
Hindi distinguishes short and long vowels as genuinely different sounds — अ (a) and आ (aa) aren't the same vowel said slightly differently, they're different letters with different words built on them. Typing the short form when you mean the long one (or the reverse) is the most common reason output looks "off."
The cheat sheet
| Type this | For this sound | Example |
|---|---|---|
| a | short अ | kal → कल (tomorrow/yesterday) |
| aa | long आ | raam → राम (Ram) |
| i | short इ | dil → दिल (heart) |
| ii / ee | long ई | cheeni → चीनी (sugar) |
| u | short उ | sun → सुन (listen) |
| oo / uu | long ऊ | dhoop → धूप (sunlight) |
A practical test
If a word comes out shorter or "clipped" compared to what you expected, try doubling the vowel first — that fixes the majority of length-related mismatches. If a word comes out with an extra sound that shouldn't be there, try the short form instead.
Pair this with the aspirated-sounds guide (kh/gh/chh/th/dh) for the two biggest accuracy wins.
Paste your message/notes and use Convert all for stable results. For live typing, switch to Sentence mode.