City
Town
Village
Hamlet
Motorway
Primary
Secondary
Unclassified
Point Distance Time Fuel
Rapid City 0 mi 0:00 00 min 0.0 gal
I 90 Business SD 79 15 mi, 18 min
Hermosa 15 mi 0:18 18 min 0.4 gal
SD 79 42 mi, 45 min
Hot Springs 57 mi 1:03 1 h 03 min 1.9 gal
US 18 Truck US 18 12 mi, 13 min
Minnekahta 69 mi 1:16 1 h 16 min 2.1 gal
US 18 11 mi, 11 min
Dudley 80 mi 1:27 1 h 27 min 2.7 gal
US 18 7 mi, 07 min
Edgemont 86 mi 1:35 1 h 35 min 2.7 gal
US 18 65 mi, 1 h 10 min
Lusk 152 mi 2:45 2 h 45 min 5.0 gal
US 18 11 mi, 12 min
Keeline 163 mi 2:58 2 h 58 min 5.2 gal
US 18 US 20 40 mi, 42 min
Douglas 203 mi 3:40 3 h 40 min 6.8 gal
I 25 50 mi, 50 min
Casper 254 mi 4:30 4 h 30 min 8.5 gal
City
Town
Village
Hamlet
Motorway
Primary
Secondary
Unclassified
Point Distance Time Fuel
Rapid City 0 mi 0:00 00 min 0.0 gal
I 90 Business SD 79 15 mi, 18 min
Hermosa 15 mi 0:18 18 min 0.4 gal
SD 79 42 mi, 45 min
Hot Springs 57 mi 1:03 1 h 03 min 1.9 gal
US 18 Truck US 18 12 mi, 13 min
Minnekahta 69 mi 1:16 1 h 16 min 2.1 gal
US 18 11 mi, 11 min
Dudley 80 mi 1:27 1 h 27 min 2.7 gal
US 18 7 mi, 07 min
Edgemont 86 mi 1:35 1 h 35 min 2.7 gal
US 18 65 mi, 1 h 10 min
Lusk 152 mi 2:45 2 h 45 min 5.0 gal
US 18 11 mi, 12 min
Keeline 163 mi 2:58 2 h 58 min 5.2 gal
US 18 19 mi, 20 min
Lost Springs 181 mi 3:18 3 h 18 min 5.9 gal
US 18 8 mi, 08 min
Orin Junction 190 mi 3:27 3 h 27 min 6.4 gal
US 18 US 20 13 mi, 13 min
Douglas 203 mi 3:40 3 h 40 min 6.8 gal
I 25 50 mi, 50 min
Casper 254 mi 4:30 4 h 30 min 8.5 gal

How far from Rapid City to Casper by car

Use the built-in fuel calculator to estimate how far from Rapid City you would have drive before refilling your car.

The distance between Rapid City and Casper is 253 miles or 408 kilometers.
The driving time from Rapid City to Casper is approximately 4 hours and 31 minutes (without intermediate stops).
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