US ZIP Code Distance
Estimate the straight-line distance between two US ZIP codes using a built-in state-capital and metro reference set.
About US ZIP Code Distance
Estimates the great-circle distance between the representative centroid points for the two state-capital or major-metro ZIPs you enter. Driving distance is usually 15–35% longer. ZIPs outside the built-in reference set are not resolved.
Formula
Haversine
distance = 2R·asin(√(sin²(Δlat/2) + cos(lat₁)·cos(lat₂)·sin²(Δlon/2)))
Reference set of US metro/capital ZIP centroids — approximate.
Frequently Asked Questions
Why doesn't my small town's ZIP work?
This reference tool includes the 50 state capitals and major metro ZIPs only — not the full 40k+ ZIP database.
How accurate is this estimate?
Rates are approximate reference values. Local rates, exemptions and rules can differ, so treat the output as a planning figure only.
Related Calculators
United States specifics
- Currency
- $ USDUS Dollar
- Region
- North America
- Country code
- US
- Amounts look like
- $1,234,567.89
- Dates look like
- Mar 9, 2026
- Units
- imperialWeek starts Sunday
In United States, imperial units are in everyday use.
Results on this page are expressed in USD (US Dollar). Figures are estimates for general planning — confirm current rates and thresholds with the relevant United States authority before relying on them.