Read large numbers across languages.
Convert Korean 만·억·조 and Chinese 万·亿 into million, billion and exact decimal numbers. Compare up to 50 values at once.
Conversion runs on this device. Input values are not sent to a server.
Use digits with an optional decimal point. Choose the unit separately. Up to 18 decimal places; no mixed units or scientific notation.
| Input | Exact number | 만 / 万 | 억 / 亿 | 조 / trillion | million | billion |
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Why billion is 10억, not 1억
Korean and Chinese large-number units commonly advance by groups of four digits: 10,000 and 100,000,000. English million and billion use groups of three. One billion is 1,000,000,000: ten groups of 100,000,000, or 10억 / 10亿.
Number units are not exchange rates
1억 KRW equals 100 million KRW. It does not equal 100 million USD. This tool changes the way a number is expressed and does not convert currencies, estimate taxes or apply exchange rates.
Large numbers without rounded-away digits
The converter shifts decimal places using integer arithmetic, preserving values such as 9,007,199,254,740,993. A decimal point means a fraction; commas must group three digits. “Billion” uses the modern short scale, 10⁹.
Background reading: Institute for Basic Science — Banking-related Numbers