Distance Calculator Miles Usa

Calculate the distance between any two locations in the United States using our free distance calculator. Whether you're planning a road trip, measuring property boundaries, or simply curious about the miles between two cities, this tool provides accurate results in miles.

How to Use This Calculator

Using our distance calculator is simple and straightforward:

Enter the starting location in the "From" field.
Enter the destination location in the "To" field.
Click the "Calculate" button to get the distance in miles.
Review the result and use the map visualization if available.

The calculator uses the Haversine formula to calculate distances between geographic coordinates. For locations in the USA, this provides accurate mileage results.

Formula Used

The distance between two points on Earth can be calculated using the Haversine formula:

a = sin²(Δφ/2) + cos φ1 ⋅ cos φ2 ⋅ sin²(Δλ/2)

c = 2 ⋅ atan2(√a, √(1−a))

d = R ⋅ c

Where:

φ is latitude, λ is longitude
R is Earth's radius (3958.8 miles)
Δφ and Δλ are differences in coordinates

This formula accounts for the Earth's curvature and provides accurate distance measurements between any two points on the planet.

Worked Examples

Example 1: Distance Between New York and Los Angeles

Coordinates:

New York: 40.7128° N, 74.0060° W
Los Angeles: 34.0522° N, 118.2437° W

Calculation:

Δφ = 34.0522° - 40.7128° = -6.6606°

Δλ = 118.2437° - 74.0060° = 44.2377°

a = sin²(-6.6606°/2) + cos(40.7128°) ⋅ cos(34.0522°) ⋅ sin²(44.2377°/2)

c = 2 ⋅ atan2(√a, √(1−a))

d = 3958.8 miles ⋅ c ≈ 2886 miles

The approximate distance between New York and Los Angeles is 2,886 miles.

Example 2: Distance Between Chicago and Houston

Coordinates:

Chicago: 41.8781° N, 87.6298° W
Houston: 29.7604° N, 95.3698° W

Calculation:

Δφ = 29.7604° - 41.8781° = -12.1177°

Δλ = 95.3698° - 87.6298° = 7.7400°

a = sin²(-12.1177°/2) + cos(41.8781°) ⋅ cos(29.7604°) ⋅ sin²(7.7400°/2)

c = 2 ⋅ atan2(√a, √(1−a))

d = 3958.8 miles ⋅ c ≈ 1086 miles

The approximate distance between Chicago and Houston is 1,086 miles.

Frequently Asked Questions

How accurate is this distance calculator?

This calculator uses the Haversine formula, which provides highly accurate distance measurements between any two points on Earth. For locations within the USA, the results are precise to within a few miles.

Can I calculate distances between international locations?

Yes, this calculator can calculate distances between any two points on Earth, not just within the USA. Simply enter the coordinates or addresses of the locations you want to measure.

What units does this calculator use?

This calculator provides results in miles. If you need distances in kilometers, you can convert the results by multiplying by 1.60934.