Pinyin Tone Marks Converter

Turn numbered pinyin (ni3 hao3) into proper tone marks (nǐ hǎo).

Quick answer

How do I add tone marks to pinyin?

Numbered pinyin writes tones as digits (ni3 hao3); tone marks place a diacritic over a vowel instead (nǐ hǎo). The mark goes on 'a' or 'e' if present, on the 'o' in 'ou', otherwise the last vowel. A converter applies this rule automatically. Shadola's free converter turns numbered pinyin into tone marks instantly, with audio to hear it.

Type numbered pinyin (use 1–4 for tones, 5 or nothing for neutral).

nǐ hǎo ma

Tone rule: the mark goes on a → e → the o in “ou” → otherwise the last vowel. “v” becomes ü (e.g. lv4 → lǜ).

Free — unlimited conversion with the correct tone-placement rule, plus audio.Pro — convert straight from Hanzi, tone-color the output, and drill the tones you miss.

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