Is this straight-line or road distance?

This tool calculates straight-line (as-the-crow-flies) distance using the Haversine formula. Actual road distance is typically 20–40% longer depending on routes and terrain. For road directions, use the Google Maps link shown on the result page.

Can I use this distance for GST E-Way Bill?

Yes. The GSTN E-Way Bill portal accepts the aerial (straight-line) distance between the origin and destination PIN codes to calculate bill validity. This tool gives you that figure instantly. For standard cargo, the portal grants 1 day of validity for every 200 km.

How accurate is the PIN code distance calculator?

Very accurate for straight-line distance. Coordinates are sourced from GeoNames open geodata for India Post PIN codes. The Haversine formula accounts for Earth's curvature, giving results accurate to within ±1 km for most PIN code pairs.

Why does the same PIN code sometimes cover multiple areas?

A single 6-digit PIN code can cover multiple post offices or sub-localities within the same delivery zone. This tool uses the coordinates of the head post office (H.O.) for each PIN code as the reference point.

Does the tool work for all states and union territories?

Yes. All 29 states and 8 union territories are covered, including remote territories like Andaman & Nicobar Islands and Lakshadweep. A small number of newly created PIN codes or Army Post Office codes (starting with 9) may not return results.

What does the same-state / different-state badge mean?

The badge tells you whether both PIN codes are in the same state or in different states. This matters for GST — inter-state movement of goods attracts IGST, while intra-state movement attracts CGST + SGST.

Is there a limit on how many searches I can do?

No. This tool is completely free to use with no signup, no account, and no usage limits. You can calculate distances between as many PIN code pairs as you need.

Why is the distance shown in kilometres?

Kilometres are the standard unit for postal and logistics distances in India and are used by the GSTN portal for E-Way Bill distance. The result also shows the equivalent in miles for reference.

PIN Code Distance 560001 to 600001 — 345.1 km

What Is the PIN to PIN Distance Calculator?

The PIN to PIN Distance Calculator is a free tool that instantly calculates the road distance between any two Indian PIN codes. Enter a 6-digit origin PIN code and a 6-digit destination PIN code, click Calculate, and get the actual road distance in kilometres — along with estimated travel time, post office details for each location, a same-state or different-state indicator, and a direct link to Google Maps for turn-by-turn directions.

This tool uses real routing data via the open-source OSRM engine combined with pre-mapped GPS coordinates for every Indian PIN code to compute results server-side — no API cost, no rate limits, results in milliseconds. The database covers 19,136+ unique Indian PIN codes across all 29 states and 8 union territories.

Who Uses PIN to PIN Distance?

Logistics teams, GST compliance professionals, e-commerce operations staff, and small business owners across India use this tool daily. Here are the most common use cases:

GST E-Way Bill

Calculate PIN to PIN distance for E-Way Bill validity. GSTN uses this distance to determine how long your bill stays active for transit — 1 day per 200 km for standard cargo.

Courier Rate Estimation

Most courier companies price shipments by distance zone — local, regional, national. Use straight-line distance to quickly identify which tier a destination falls into.

Delivery Coverage Zones

E-commerce sellers and hyperlocal delivery services use PIN-to-PIN distance to set serviceable coverage zones and slot delivery partners to specific routes.

Logistics Route Planning

Fleet managers and supply chain planners use distance data between distribution hubs to optimise vehicle routing and reduce fuel costs across runs.

Real Estate & Site Selection

Businesses evaluating new office or warehouse locations compare candidate PIN codes against major supplier or customer PIN codes to assess proximity.

Vendor Distance Verification

Procurement teams verify the distance to a vendor's registered address by PIN code when comparing bids, calculating inbound freight, and assessing supply chain risk.

How the Haversine Formula Calculates Distance

The distance shown is the great-circle distance — the shortest path between two points on Earth's surface, assuming a perfect sphere. The Haversine formula works in three steps: it converts the latitude and longitude of both PIN codes from degrees to radians, calculates the angular separation using half-versines, then multiplies by Earth's mean radius (6,371 km) to convert to physical distance.

For Indian distances — rarely exceeding 3,000 km — the Haversine formula is accurate to within 0.3% of the true great-circle distance. For flat regions like the Indo-Gangetic Plain, road distance is often just 10–15% more. For hilly and mountainous regions like the Western Ghats or Himalayas, road distance can be 40–60% more than the straight-line figure.

Understanding India's 6-Digit PIN Code Structure

Every 6-digit code follows a logical hierarchy that reveals geographic information about the delivery area:

First digit — Postal zone (1–9). Divides India into 9 major regions.
Second digit — Sub-region. Narrows location to a specific state or group of states.
Third digit — Sorting district. Identifies the head sorting office for the district.
Last three digits — Delivery office. Pinpoints the exact post office — H.O., S.O., or B.O.

First Digit	Postal Zone	States / Regions Covered
1	Northern Zone	Delhi, Haryana, Punjab, Himachal Pradesh, J&K, Ladakh
2	Northern Zone	Uttar Pradesh, Uttarakhand
3	Western Zone	Rajasthan, Gujarat, Dadra & NH, Daman & Diu
4	Western Zone	Maharashtra, Goa, Madhya Pradesh, Chhattisgarh
5	Southern Zone	Andhra Pradesh, Telangana, Karnataka
6	Southern Zone	Tamil Nadu, Kerala, Puducherry, Lakshadweep
7	Eastern Zone	West Bengal, Odisha, Assam, all North-East states
8	Eastern Zone	Bihar, Jharkhand
9	APS Zone	Army Postal Service — APO/FPO offices

PIN to PIN Distance for GST E-Way Bill Compliance

Under the GST framework, every consignment worth more than ₹50,000 moving between two points must carry an E-Way Bill from the GSTN portal. The mandatory distance field accepts the PIN-to-PIN aerial distance to calculate the bill's validity period — 1 day per 200 km for standard cargo, 1 day per 20 km for over-dimensional cargo (ODC).

Entering an incorrect distance risks early bill expiry mid-transit (if too short) or regulatory scrutiny (if inflated). Use this calculator for an accurate aerial distance between any two Indian PIN codes as a reliable reference for E-Way Bill compliance.

Straight-Line vs Road Distance — When to Use Which

Use straight-line distance for: GST E-Way Bill declarations (GSTN accepts aerial distance), shipping zone classification, geographic proximity checks, and macro-level supply chain planning.

Use road distance for: actual vehicle routing, driver time estimation, fuel cost calculation, and last-mile delivery windows. Use the Google Maps link on the result page for the exact road route between the two PIN code locations.

Other Banking & Postal Tools You May Need

If you're here for logistics or banking tasks, these BankZop tools are also commonly needed alongside PIN code distance lookups:

PIN Code Lookup — Find the post office, district, state, and delivery status for any 6-digit PIN code in India. Covers 1,64,000+ post offices.
IFSC Code Lookup — Find the 11-character IFSC code for any bank branch. Required for NEFT, RTGS, and IMPS transfers.
MICR Code Lookup — Look up the 9-digit MICR code printed on cheques. Required for ECS mandates, SIP registrations, and direct debit setups.
SWIFT Code Lookup — Find international bank identifier codes for foreign wire transfers and remittances.
EMI Calculator — Calculate monthly loan EMI for home loans, personal loans, car loans, and business loans.

PIN 560001 to PIN 600001 Distance