Postcode / ZIP Lookup & Distance
Free client-side postcode and ZIP code distance calculator. Calculate straight-line, driving estimates, and radius proximity matrix.
Point-to-Point Postal Distance
Select or search postal codes/ZIPs for origin and destination to calculate straight-line geodesic distance, estimated driving miles, transit times, and time zone deltas.
Logistics & Travel Assessment
Postal Code Proximity & Radius Finder
Determine all postal centers and metropolitan hubs located within a specified radius from your home location.
Nearby Postal Hubs (0 found)
| Postal Code | City & Region | Country | Distance (Miles) | Distance (Km) |
|---|---|---|---|---|
| Click 'Find Nearby Hubs' to calculate surrounding postal zones. | ||||
Postal Hub Directory & Coordinates Matrix
Explore the built-in offline international centroid matrix covering major postal codes, coordinates, and regional time zones.
| Code / ZIP | City / Area | State / Region | Country | Latitude | Longitude | Time Zone |
|---|
About this tool
How to use it
- Enter a starting Postcode or ZIP Code (e.g. 10001, SW1A 1AA, 90210, M5V 2T6) into Point A.
- Enter the destination Postcode or ZIP Code into Point B, or select from the pre-populated quick city hubs.
- Inspect the calculated geodesic distance in miles, kilometers, and nautical miles via the client-side Haversine formula.
- Review estimated driving road distance, typical courier parcel delivery transit times, and time zone offsets.
- Switch to the 'Radius Proximity Finder' tab to discover all neighboring postal zones within a 10 to 100-mile perimeter.
Why it matters
Logistics managers, eCommerce store owners, field service dispatchers, and business travelers frequently need instant postal code distance checks, delivery radius evaluations, and driving estimates without paying expensive mapping API subscriptions or waiting for slow external lookups.
When to use it
Use when determining courier delivery charge zones, verifying local service coverage territories, calculating mileage reimbursement rates, or estimating regional parcel transit times.
Common questions
Does this postal distance calculator require an external mapping API or key?
No. The entire centroid database and geodesic Haversine distance engine run 100% locally inside your browser with zero network dependencies.
What countries and postal formats are supported?
The built-in database covers prominent postal codes and metropolitan centroids across the United States (5-digit ZIPs), United Kingdom (outward & full postcodes), Canada (FSA codes), Australia (4-digit postcodes), and European capitals.
What is the difference between straight-line distance and driving distance?
Straight-line distance is the exact spherical great-circle arc calculated via the Haversine formula. The estimated driving distance incorporates an empirical road routing detour factor (typically 1.25x to 1.35x).
Can I search by city or district name as well as postal code?
Yes. The search input automatically matches postal codes, city names, states/provinces, and administrative regions.