Calculate the exact straight-line distance (miles & km), estimated driving distance, USPS Postal Zone & Mail Delivery Days between any two ZIP codes or postcodes, and find all codes within a radius.
The PostalCodes.info ZIP & Postal Code Distance Calculator computes the exact great-circle Haversine distance (in kilometers and statute miles), estimated road driving distance (1.24x–1.32x network tortuosity factor), and official USPS / National Postal Zone (Zones 1–8) transit times between any two postal codes across 249 countries. For programmable logistics workflows, connect directly to GET /api/v1/distance or combine point-to-point distance with our Postal Code Radius Calculator and UPU S42 Address Validator.
| Postal Shipping Zone | Geodesic Radius (Miles / km) | Priority / Express Transit | Standard / Ground Parcel Transit |
|---|---|---|---|
| Zone 1 & Zone 2 (Local / Regional) | 0 – 150 mi (0 – 241 km) | 1 – 2 Business Days | 2 – 3 Business Days |
| Zone 3 & Zone 4 (Inter-Regional) | 151 – 600 mi (242 – 965 km) | 2 Business Days | 3 – 4 Business Days |
| Zone 5 & Zone 6 (Cross-Country) | 601 – 1,400 mi (966 – 2,253 km) | 2 – 3 Business Days | 4 – 5 Business Days |
| Zone 7 & Zone 8 (Coast-to-Coast / Intl) | 1,401+ mi (2,254+ km) | 3 – 4 Business Days | 5 – 8 Business Days |
We compute the exact geodesic (Haversine) distance between the verified WGS84 centroids of both postal codes in miles and kilometers, plus an estimated road driving distance and compass bearing.
Mail transit time depends on the USPS Postal Zone (Zones 1 to 8, based on distance in miles) or national carrier distance. Local Zone 1–2 mail typically arrives in 1–2 business days, while cross-country Zone 8 mail takes 3–5 business days.
Enter your origin postal code and select a radius (e.g. 10 km, 25 km, or 50 km). The calculator lists all surrounding postal codes sorted by exact distance.