Question 1

How is straight-line distance different from driving distance?

Accepted Answer

Straight-line distance (also called "as the crow flies") measures the direct path between two points on Earth's surface. Driving distance follows actual roads and highways, which curve, detour, and rarely form a straight line, making it typically longer.

Question 2

Does this calculator account for Earth's curvature?

Accepted Answer

Yes, distance calculations use the Haversine formula, which accounts for Earth's spherical shape. This provides accurate distances even for points thousands of miles apart, unlike simple Pythagorean calculations.

Question 3

Why is my driving time estimate different from GPS?

Accepted Answer

Our estimates use average highway speeds and don't include real-time traffic, construction, or stops. GPS apps factor in current conditions, time of day, and historical traffic patterns for more precise predictions.

Question 4

Can I calculate distance between coordinates?

Accepted Answer

Absolutely. Enter latitude and longitude in decimal format (like 40.7128, -74.0060) and the calculator will compute distances just as accurately as with city names or addresses.

Question 5

How accurate are the flight time estimates?

Accepted Answer

Flight times are estimates based on typical cruising speeds (500-550 mph for commercial jets) and great circle routes. Actual flight times vary with aircraft type, weather, air traffic, and whether the route is direct or has connections.

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