Speed Time And Distance Calculator Between Cities

Distance Calculation Formula:

\[ \text{distance} = \sqrt{(lat2 - lat1)^2 + (lon2 - lon1)^2} \times \text{earth\_radius} \] \[ \text{time} = \frac{\text{distance}}{\text{speed}} \]

Latitude of City 1:

degrees

Longitude of City 1:

degrees

Latitude of City 2:

degrees

Longitude of City 2:

degrees

Speed:

km/h

Earth Radius:

Distance Between Cities:

Estimated Travel Time:

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1. What is the Distance Calculator?

The Speed Time And Distance Calculator Between Cities calculates the straight-line distance between two geographic points and estimates travel time based on speed. It uses latitude and longitude coordinates to determine the distance.

2. How Does the Calculator Work?

The calculator uses the following formulas:

\[ \text{distance} = \sqrt{(lat2 - lat1)^2 + (lon2 - lon1)^2} \times \text{earth\_radius} \] \[ \text{time} = \frac{\text{distance}}{\text{speed}} \]

Where:

\( lat1, lon1 \) — Coordinates of first city (degrees)
\( lat2, lon2 \) — Coordinates of second city (degrees)
\( earth\_radius \) — Radius of Earth (default 6371 km)
\( speed \) — Travel speed (km/h)

Explanation: The formula calculates the Euclidean distance between two points on a plane (approximation of Earth's surface for short distances) and multiplies by Earth's radius to get actual distance.

3. Importance of Distance Calculation

Details: Calculating distances between cities is essential for travel planning, logistics, transportation estimates, and geographic analysis.

4. Using the Calculator

Tips: Enter coordinates in decimal degrees (e.g., 40.7128 for New York), speed in km/h, and Earth radius (default is 6371 km). All values must be positive.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: This provides a straight-line (great-circle) distance. For actual travel distances, road distances will be longer.

Q2: Where can I find city coordinates?
A: Many online services provide latitude/longitude for cities. Google Maps also shows coordinates when you click on a location.

Q3: What's the Earth's radius at the poles vs equator?
A: Earth's radius varies from 6357 km (poles) to 6378 km (equator). The default 6371 km is the mean radius.

Q4: Can I use this for very long distances?
A: For distances over 500 km, consider using the Haversine formula for better accuracy with Earth's curvature.

Q5: How does speed affect travel time?
A: Travel time is inversely proportional to speed. Doubling speed halves travel time for the same distance.