Enter katakana or hiragana into the box below and click “convert” to convert it into romaji. In general, this tool will convert kana directly. In other words オオ will be converted to “oo”. However, when a vowel lengthening symbol (ー) appears, macronsare used, e.g., (オー) is converted to ō. Click here for Examples.

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Hiragana Chart

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Katakana Chart

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