Japanese Yen
JPYPrimary country: Japan
Symbol
¥
Decimal Places
0
ISO Numeric
392
Formatting Example
¥123,456
Usage in Code
// JavaScript Intl.NumberFormat
new Intl.NumberFormat('en', {
style: 'currency',
currency: 'JPY'
}).format(1234.56)
// → "¥123,456"
// ISO 4217 code: JPY
// Numeric code: 392
// Minor unit: 0 decimal placesAbout Japanese Yen
The Japanese Yen (JPY) is the official currency of Japan, identified by the ISO 4217 code "JPY" and numeric code 392. Its symbol is ¥, and amounts are typically formatted with 0 decimal places (e.g., ¥123,456).
In software development, currency codes are essential for e-commerce, financial applications, and internationalization. The JavaScript Intl.NumberFormat API supports formatting amounts in JPY with locale-aware separators and symbols. Payment processors like Stripe and PayPal require ISO 4217 currency codes when processing transactions.
When building multi-currency applications, store amounts in the smallest unit (e.g., cents for USD) to avoid floating-point precision errors. Use the decimal places value (0) to correctly convert between major and minor units. APIs like exchangeratesapi.io and Open Exchange Rates provide real-time conversion rates for JPY.