Poland Number Format
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Format Rules
Poland formatting implementation notes
For Poland, format numbers with the explicit locale pl-PL; the reference value 1234567.89 renders as 1 234 567,89.
Poland's reference format uses "," as the decimal mark and a non-breaking space (U+00A0) for grouping. The integer uses repeating groups of three digits. Pass "pl-PL" directly to Intl.NumberFormat instead of replacing punctuation in a preformatted string.
PLN is shown with zł after the amount with a separating space; the same reference value renders as 1 234 567,89 zł. The percent sign appears immediately after the amount. Use the ISO currency code for storage and interchange because a visible symbol can be shared by unrelated currencies.
Western 0–9 digits are the page's reference digit system, and the negative pattern is -n. Treat pl-PL as the reference locale for this page, but still respect the user's explicitly selected language and numbering-system preferences. Validate output with formatToParts() when spacing, signs, or bidirectional literals affect the interface.
- Locale: pl-PL
- Decimal and grouping: 1 234 567,89
- Currency: PLN → 1 234 567,89 zł
- Digits: Western 0–9 digits
Reviewed 19 July 2026. Sources: Unicode locale number formats · Intl.NumberFormat reference
What's different here
- Decimal mark is a comma (,) (en-US uses a period (.)).
- Thousands are grouped with a no-break space (U+00A0) (en-US uses a comma (,)).
- The currency symbol goes after the amount with a space (en-US: immediately before the amount).
- Uses the same number pattern (decimal mark, grouping, symbol and percent placement) as Bulgaria.
- Nearby differences: Italy (it-IT) groups with a period (.) instead of a no-break space (U+00A0); Spain (es-ES) groups with a period (.) instead of a no-break space (U+00A0); Sweden (sv-SE) places the percent sign after the number with a space; Norway (nb-NO) places the percent sign after the number with a space.
- Currency: PLN has ISO minor unit 2.
- The grouping character is a no-break space (U+00A0), not a regular space. Normalise it before parsing user input or comparing strings.
- Postal address order: name → building → street + street number → postcode + city → country. See address formats.
Code Examples
// Basic number
new Intl.NumberFormat('pl-PL').format(1234567.89)
// → "1 234 567,89"
// Currency
new Intl.NumberFormat('pl-PL', {
style: 'currency',
currency: 'PLN'
}).format(1234567.89)
// → "1 234 567,89 zł"
// Percentage
new Intl.NumberFormat('pl-PL', {
style: 'percent',
minimumFractionDigits: 1
}).format(0.125)
// Compact notation
new Intl.NumberFormat('pl-PL', {
notation: 'compact'
}).format(1234567)Negative Number Formats
new Intl.NumberFormat('pl-PL').format(-1234567.89)new Intl.NumberFormat('pl-PL', { style: 'currency', currency: 'PLN', currencySign: 'accounting' }).format(-1234567.89)
Continue your localization implementation
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Formatting implementation
Numbers, currencies, dates, time zones, numbering systems, and production tests.
Failure patterns
Hardcoded copy, broken layouts, missing context, bidi, and cultural adaptation.
Standards reference
ISO country, currency, and language codes; BCP 47; E.164; and UPU S42.
Validation coverage
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Locale-aware numbers
Separators, grouping, currency precision, and Intl.NumberFormat patterns.
Localization testing
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Address and phone standards
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I18n architecture
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Currency reference
ISO 4217 codes, symbols, minor units, and implementation examples.
Address formats
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Phone formats
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