Coordinate conversion
& enriched UN/LOCODE data

Coordinate Converter

Paste any coordinate format - or a UN/LOCODE. The system detects it automatically and converts to every other major format in real time.

• Decimal Degrees (DD)
• Degrees Minutes Seconds (DMS)
• Universal Transverse Mercator (UTM)
• Military Grid Reference (MGRS)
• Google Plus Codes
• UN/LOCODE with enrichment

UN/LOCODE inputs resolve to coordinates and display location name, timezone, UTC offset, and local time. All inputs show nearby UN/LOCODEs by distance. Configurable precision (4–10 decimal places), one-click copy, copy all as plain text or JSON. Keyboard-first with Ctrl+K.

Enriched UN/LOCODE data

UN/LOCODEs are the standard identifier for ports, airports, and freight terminals in international trade. But the official UNECE directory is published as flat CSV files with no API, no timezone data, and roughly 20% of entries missing coordinates entirely. Unlocoder fills every gap.

• 114,000+ codes with verified coordinates
• IANA timezone with UTC offset and local time
• Port coordinates from maritime authority data
• Airport coordinates matched by IATA code
• Elevation and spatial nearest-neighbour queries
• Daily enrichment from multiple independent sources

See the difference: SGSIN

Here is what the official UNECE CSV gives you for Singapore versus what the Unlocoder API returns for the same code.

"SG","SIN","Singapore","","AI"
"12345","","0117N 10351E",""
// No timezone
// No elevation
// No IATA codes
// No nearby locations
// Coordinates in non-standard
//   degrees-minutes format

{
  "country": "SG",
  "location": "SIN",
  "name": "Singapore",
  "latitude": 1.28967,
  "longitude": 103.85007,
  "function": "12345---B",
  "timezone": {
    "ianaId": "Asia/Singapore",
    "utcOffset": "+08:00"
  },
  "iata": "SIN",
  "elevationMeters": 12,
  "nearbyUnLocodes": [
    { "code": "SGJUR", "distanceKm": 5.2 },
    { "code": "SGPKG", "distanceKm": 9.1 }
  ]
}

Most teams end up downloading the CSV, writing custom parsers, geocoding the missing entries, and bolting on timezone lookups. Unlocoder handles all of that behind a single API call, backed by a multi-source enrichment pipeline that runs every day.

Learn more about UN/LOCODE data or get API access on RapidAPI.

Who it's for

Coordinate & UN/LOCODE APIs

Three dedicated API endpoints: coordinate conversion with auto-detection, UN/LOCODE lookup with timezone enrichment, and nearby UN/LOCODE search by coordinates.

• Auto-detect and convert any coordinate format
• Look up any UN/LOCODE for timezone and location data
• Find nearest UN/LOCODEs to any coordinate
• Timezone with UTC offset and local time
• Elevation, confidence scores, and metadata
• Continuously updated from official UNECE data

API pricing

The web converter is free with no limits. API access is available on the following tiers:

Why Unlocoder

Every other coordinate converter is buried in ads, pop-ups, and outdated UX. We built the tool we wanted to use.

• No ad-infested pages with five toolbars
• No registration walls or email harvesting
• No imprecise rounding or mystery formatting

Instead:

• Optimized for speed, rapid conversions
• Configurable precision you can trust
• Clean UX, no clutter
• Deterministic engine backed by authoritative test data