Your total trip with all stops is around 1,230 miles / 1980 km, taking roughly 19.5 hours for the whole trip. If you want to see every small town along the way, you can get a full list of cities between El Centro, CA and Richland, WA.
Start from El Centro, California.
Las Vegas, Nevada is stopping point #1 after driving about 310 miles (500 km) or 5 hours.
Boise, Idaho is stopping point #2 after driving about 630 miles (1010 km) or 9.5 hours. Your total trip so far is about 940 miles or 1500 km over roughly 14.5 hours of driving.
Finally, Richland, Washington is your destination after driving about 300 miles (480 km) or 4.5 hours. Your total trip with all stops is around 1,230 miles or 1980 km, taking roughly 19.5 hours for the whole trip.
Travelmath helps you figure out where to stop when planning a long road trip from one location to another. The best stopping point for an overnight hotel stay or a break from driving often depends on how far or how long you want to drive before pausing to rest. You can find the closest city to your stopping point to look for hotels, or explore other cities and towns along the route. Use this as a road trip planner when you're driving cross-country or mapping a route with multiple stops.