ISK — Icelandic Króna
fiatHow to implement ISK safely
Iceland Krona uses ISO 4217 alpha code ISK and numeric code 352.
ISK appears in the current ISO 4217 list published 2026-01-01. ISK has ISO minor unit 0, so the standard currency formatter normally displays no fractional digits. Configure Intl.NumberFormat with currency: "ISK"; do not hardcode the symbol or assume every currency uses two decimals.
kr. is the reference symbol in this dataset. Store ISK alongside the amount so exports, payments, and accounting data remain unambiguous. Format for display only after choosing the user's locale, because symbol placement and separators belong to the locale rather than the currency record.
This site's coverage associates ISK with 1 countries or territories (IS). Region and language still need separate locale selection; the currency code alone does not choose punctuation or digit shapes. The record was checked against the SIX ISO 4217 source on 2026-07-19; recheck status-sensitive records when the Maintenance Agency publishes a new list.
- Status: active
- Numeric code: 352
- ISO minor unit: 0
- Verified: 2026-07-19
Reviewed 19 July 2026. Sources: SIX ISO 4217 current list
Formatting Examples
| Value | en-US |
|---|---|
| 1 | ISK 1 |
| 9.99 | ISK 10 |
| 100 | ISK 100 |
| 1234.56 | ISK 1,235 |
| 1000000 | ISK 1,000,000 |
Intl.NumberFormat
// Basic ISK formatting
new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'ISK',
}).format(1234.00);
// → "ISK 1,234"
// Minimum/maximum fraction digits
new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'ISK',
minimumFractionDigits: 0,
maximumFractionDigits: 0,
}).format(99);
// Example display precision: 0 decimal places
// ISO 4217 minor unit: 0
// Integer minor-unit storage
// ISK amount = value × 1Countries Using ISK
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