Boulder to Marshalltown: Road Trip Guide & Distance
How far is Boulder from Marshalltown?
The distance from Boulder to Marshalltown is 658.8 miles (1060.3 km) as the crow flies. Marshalltown is located ENE of Boulder. By car, the driving distance is approximately 790.6 miles, taking about 15h 54min. A direct flight would take roughly 1h 50min. Both are located in United States — Boulder in Colorado and Marshalltown in Iowa.
This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.
Coordinates come from public place data for Boulder and Marshalltown. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.
How to Get from Boulder to Marshalltown
Suggested Stops Between Boulder & Marshalltown
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Quick Facts
Did You Know?
- At walking speed (3 mph), it would take about 220 hours of non-stop walking
- By bicycle at 12 mph, the journey would take roughly 55 hours
- You could travel this distance about 37.8 times to circle the Earth's equator