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`t = (f(( lat_2 - lat_1 ) and ( lon_2 - lon_1 ))) / "v" `

Enter a value for all fields

The **Haversine Travel Time between Points** calculator computes the time to travel between to points on the globe in a great circle arc at an average velocity.

**INSTRUCTIONS: **Enter the following:

- (
**Lat**_{1}_{)}Starting latitude - (
**Lon**) Stating Longitude_{ 1} - (
**Lat**) Ending Latitude_{ 2} - (
**Lon**) Ending Longitude_{ 2} - (
**V**) Average Speed

**Travel Time (t):** The calculator returns the time required to travel between the points in days, hours and minutes (dd:hh:mm). The results include the distance traveled in kilometers, miles (statute) and nautical miles.

The Haversine Travel Time calculator uses the Haversine equation to compute the distance between two points (x and y) on the Earth. It then uses a mean velocity (speed) to calculate the time necessary to travel between the two points on the globe.

The time of travel is calculated by dividing the distance traveled by the average velocity. This formula allows the user to enter two points on the globe in latitude and longitude, and a speed. This formula uses the Haversine formula to approximate the distance between the two points. The Haversine formula is based on a spherical earth model employing the Earths mean radius.

This formula will provide a fairly accurate estimate on the amount of time it would take a tsunami to travel between two points. The velocity of a tsunami is reported to be 500 miles per hours when in deep water (See U.S. Gov Report).

**Haversine Distance (decimal degrees)**: Compute the Distance Between two Points on the Earth (Great Circle Arc)**Haversine Distance (Degrees, Minutes and Seconds)**: Compute the Distance Between two Points on a Sphere (Great Circle Arc) using degrees, minutes and seconds verses decimal degrees.**Decimal Degrees**: Compute decimal degree angles from degrees, minutes and seconds,**[CLICK HERE]**.**Haversine Travel Time:**Compute the time to travel between two location (latitudes and longitudes) based on a average speed**Sphere Calculator**: formulas related to spherical objects**Correction Angle**: navigation equation that compensates for air or water currents.

- Compute decimal degree angles from degrees, minutes and seconds,CLICK HERE.
- Compute the time to travel between two latitudes and longitudes
- Compute the Distance Between two Points on a Sphere (Great Circle Arc)
- Compute the Great Circle Arc Central Angle
- Great Circle Arc Angle (Vincenty's)