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MXN — Mexican Peso

fiat
ISO Code: MXNNumeric: 484ISO minor unit: 2Region: Americas
🇲🇽

How to implement MXN safely

Mexican Peso uses ISO 4217 alpha code MXN and numeric code 484.

MXN appears in the current ISO 4217 list published 2026-01-01. MXN has ISO minor unit 2, so one major unit divides into 100 minor units. Configure Intl.NumberFormat with currency: "MXN"; do not hardcode the symbol or assume every currency uses two decimals.

$ is the reference symbol in this dataset. Store MXN 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 MXN with 1 countries or territories (MX). 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: 484
  • ISO minor unit: 2
  • Verified: 2026-07-19

Reviewed 19 July 2026. Sources: SIX ISO 4217 current list

Formatting Examples

Valueen-US
1MX$1.00
9.99MX$9.99
100MX$100.00
1234.56MX$1,234.56
1000000MX$1,000,000.00

Intl.NumberFormat

JavaScript
// Basic MXN formatting
new Intl.NumberFormat('en-US', {
  style: 'currency',
  currency: 'MXN',
}).format(1234.56);
// → "MX$1,234.56"

// Minimum/maximum fraction digits
new Intl.NumberFormat('en-US', {
  style: 'currency',
  currency: 'MXN',
  minimumFractionDigits: 2,
  maximumFractionDigits: 2,
}).format(99);
// Example display precision: 2 decimal places
// ISO 4217 minor unit: 2

// Integer minor-unit storage
// MXN amount = value × 100

Countries Using MXN

🇲🇽

Mexico

es-MX

$1,234,567.89

Continue your localization implementation

Connect this reference to the format, validation, and testing guidance used elsewhere on the site.

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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Address formats

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Phone formats

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Compare locales

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