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
2II
3III
4IV
5V
6VI
7VII
8VIII
9IX
10X๑๐
50L五十五十๕๐
100C一百๑๐๐
1000M一千๑๐๐๐