Numeral System Converter

Convert between numeral systems: Arabic, Roman, Chinese, Japanese, and Thai numerals. Supports large numbers.

All processing happens in your browser. No data is uploaded.
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Numeral System Converter

Convert between numeral systems: Arabic, Roman, Chinese, Japanese, and Thai numerals. Supports large numbers.

🔒All processing happens in your browser. No data is uploaded.
Input
Arabic (Standard)
Decimal value:42
Conversions
Roman Numerals
XLII
Chinese Numerals
四十二
Japanese Numerals
四十二
Thai Numerals
๔๒
Reference Table
#Roman NumeralsChinese NumeralsJapanese NumeralsThai Numerals
1I一一๑
2II二二๒
3III三三๓
4IV四四๔
5V五五๕
6VI六六๖
7VII七七๗
8VIII八八๘
9IX九九๙
10X十十๑๐
50L五十五十๕๐
100C一百百๑๐๐
1000M一千千๑๐๐๐