Distance between cities › USA › Wyoming › Shell, WY › Distance from Shell to Boulder Book Hotels

Distance from Shell, WY to Boulder, WY

Distance

287 mi

Time

5 hours 31 mins

Gas Cost

$27 - $52

There are 157.16 miles from Shell to Boulder in southwest direction and 287 miles (461.88 kilometers) by car, following the WY 28 route.

Shell and Boulder are 5 hours 31 mins far apart, if you drive non-stop .

This is the fastest route from Shell, WY to Boulder, WY. The halfway point is Saint Stephens, WY.

Shell, WY and Boulder, WY are in the same time zone (MDT). Current time in both locations is 6:19 am.

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Lowest Price Rental Cars in Shell, WY

Planning on renting a car to go from Shell, WY to Boulder, WY? Here there are some offers to rent a car in Shell, WY

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Shell »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 11.55 gallons of gas to cover the route between Shell, WY and Boulder, WY.

The estimated cost of gas to go from Shell to Boulder is $37.66.

During the route, an average car will release 226.21 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Shell, WY and Boulder, WY

If you want to meet halfway between Shell, WY and Boulder, WY or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.961102 and -108.424522, or 42º 57' 39.9672" N, 108º 25' 28.2792" W. This location is 143.75 miles away from Shell, WY and Boulder, WY and it would take approximately 2 hours 45 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Saint Stephens, WY, situated 145 miles from Shell, WY and 143 miles from Boulder, WY. It would take 2 hours 56 mins to go from Shell to Saint Stephens and 3 hours 13 mins to go from Boulder to Saint Stephens.