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Digital Postal Index Number

DIGIPIN National Addressing System

Convert geographic coordinates into a compact, standardized 10-character alphanumeric DIGIPIN, or decode an existing DIGIPIN code back to precise latitude and longitude coordinates.

Generate DIGIPIN from Coordinates

Range: 2.5° to 38.5° (India boundaries)

Range: 63.5° to 99.5° (India boundaries)

Generated DIGIPIN

Latitude:
Longitude:

Decode DIGIPIN to Coordinates

Format: 10 alphanumeric characters (e.g., 39J-438-TJC7)

Decoded Coordinates

Latitude:
Longitude:

DIGIPIN System Information

Description

Geographic Bounds

Min Latitude
Max Latitude
Min Longitude
Max Longitude

DIGIPIN Grid Layout

Valid Matrix Characters

API Endpoints

How India Post DIGIPIN Works

DIGIPIN is a highly precise national location addressing technology developed by India Post. It works by mapping coordinates to 10-character blocks, representing a 4 meter by 4 meter ground region.

Geographic Division

The system divides India's map into a 4x4 matrix of primary regions. Each successive character in the DIGIPIN zooms in on a sub-quadrant, progressively sharpening the accuracy until it isolates a single building parcel.

Practical Applications

  • Fast dispatch delivery routing
  • Precise emergency rescue localization
  • Simplified addresses for E-Commerce orders

Frequently Asked Questions

DIGIPIN (Digital PIN) is a 10-character alphanumeric addressing code developed by the Department of Posts. It acts as a standardized digital address system, representing a highly precise geographic location inside India.
DIGIPIN operates at a 10-level resolution depth, dividing the ground map repeatedly until it resolves down to a 4 meter by 4 meter grid. This is precise enough to locate the front door of a specific house or business address.
The encoding and decoding arithmetic logic does not rely on online mapping APIs and can be computed mathematically. Once the script rules are loaded, code generation can run on devices without cellular internet connections.
No. DIGIPIN acts as an optional, high-precision layer to supplement traditional postal addresses, streamlining parcel delivery logistics rather than replacing the regional 6-digit PIN codes.
These bounds align with the extreme geographic borders of India. Restricting coordinates to these dimensions keeps calculations optimized and prevents generation errors for locations outside the country.
DIGIPIN excludes characters like 'I', 'O', 'U', and digits '0' and '1' to avoid transcription mistakes caused by visual similarity (such as confusing 'I' with '1' or 'O' with '0').

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