Shortest distance between Gregory and Rapid City is 198.8 miles (319.94 km).
Flight distance from Gregory, SD to Rapid City, SD is 198.8 miles. Estimated flight time is 00 hours 29 minutes.
It takes 00 hours 26 minutes to travel from Gregory to Rapid City with an airplane (average speed of 550 miles).
The driving distance from Gregory, South Dakota to Rapid City, South Dakota is: 241.94 miles (389.37 km) by car.
Driving from Gregory to Rapid City will take approximately 03 hours 47 minutes.
The distance between Gregory and Rapid City is 389 km if you choose to drive by road. You can go 04 hours 19 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.
Please keep in mind that there is a 1 hour time gap between Gregory, SD and Rapid City, SD. The current time in Gregory is 06:19:19, although it is 05:19:19 in Rapid City.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||08 hours 03 minutes|
|40 mph (64.37 km/h)||06 hours 02 minutes|
|50 mph (80.47 km/h)||04 hours 50 minutes|
|60 mph (96.56 km/h)||04 hours 01 minutes|
|70 mph (112.65 km/h)||03 hours 27 minutes|
|75 mph (120.7 km/h)||03 hours 13 minutes|
|80 mph (128.75 km/h)||03 hours 01 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 32.32 liters (8.54 gallon) of gas to cover the route between Gregory and Rapid City.
The estimated cost of gas to go from Gregory to Rapid City is $35.02 (diesel $41.4).
Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.
The average gas price per gallon of daily gas for calculations is $4.102 (Diesel $4.849) /gallon. Last changed prices on January 30, 2023.
The place names are translated into coordinates to approximate the distance between Gregory and Rapid City (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.