Czech Koruna
CZKPrimary country: Czech Republic
Symbol
Kč
Decimal Places
2
ISO Numeric
203
Formatting Example
1 234,56 Kč
Usage in Code
// JavaScript Intl.NumberFormat
new Intl.NumberFormat('en', {
style: 'currency',
currency: 'CZK'
}).format(1234.56)
// → "1 234,56 Kč"
// ISO 4217 code: CZK
// Numeric code: 203
// Minor unit: 2 decimal placesAbout Czech Koruna
The Czech Koruna (CZK) is the official currency of Czech Republic, identified by the ISO 4217 code "CZK" and numeric code 203. Its symbol is Kč, and amounts are typically formatted with 2 decimal places (e.g., 1 234,56 Kč).
In software development, currency codes are essential for e-commerce, financial applications, and internationalization. The JavaScript Intl.NumberFormat API supports formatting amounts in CZK 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 CZK) to avoid floating-point precision errors. Use the decimal places value (2) to correctly convert between major and minor units. APIs like exchangeratesapi.io and Open Exchange Rates provide real-time conversion rates for CZK.