Miles and transit.

The lane finder turns two city names into four planning numbers: road miles, drive hours, days solo and days team. It works in three steps. First, it measures the straight-line distance between the two cities over the curve of the earth. Second, it multiplies that distance by 1.18 to estimate road miles, because roads never run perfectly straight. Third, it converts road miles into time: drive hours at an average of 50 mph, solo days at about 550 miles a day, and team days at about 1,000 miles a day, each rounded up to whole days with a minimum of one. The tool covers more than 100 freight cities, opens on Los Angeles to Chicago, and lets you pick dry van, reefer, flatbed or step deck before you send the lane to us for a price. The equipment choice does not change the miles or days; it travels with the lane into your quote request.

The starting point is great-circle distance, the shortest path between two points on the surface of a sphere. The lane finder stores a latitude and longitude for each city and runs the haversine formula, a standard way to compute that distance, with an earth radius of 3,958.8 miles. The result is what a plane would fly with no wind and no airways, not what a truck drives. Great-circle distance is a good base because it is consistent: it does not depend on a routing engine, a map version or a road closure, and it gives the same answer every time for the same pair of cities. It also makes comparisons fair. A lane that is clearly longer in a straight line is very likely longer on the road too. The weakness is obvious: a straight line crosses lakes, mountains and cities that a truck must go around. That is what the road factor corrects for, on average, in the next step.

The lane finder multiplies straight-line distance by 1.18 to estimate road miles. A lane whose straight-line distance is 600 miles becomes 600 x 1.18 = 708 estimated road miles. One at 1,500 miles becomes 1,500 x 1.18 = 1,770. The factor is a planning average across many lanes, not a measured figure for any one of them. On lanes that follow a direct Interstate across open country, real road miles often come in near or below the estimate. On lanes that must swing around a mountain range, a large lake or a coastline, they can run well above it. You can see this on the three lanes in our lane guides: their published road miles come from the actual Interstate routes, and they are the numbers to use when a lane has a guide. The tool's figure is for the many lanes that do not. Treat it as a fast, consistent first estimate, and expect the carrier's routed miles on the rate confirmation to be the final word.

The lane finder converts road miles into drive hours by dividing by 50, a planning average speed for a loaded truck, and rounds to the nearest hour. A 708 mile lane is 708 / 50 = 14.16, shown as 14 hours. A 240 mile lane is 240 / 50 = 4.8, shown as 5 hours. That is deliberately slow: it is an average over the whole trip, including city traffic at both ends, fuel stops, construction zones, grades, weather and the slower speed limits for trucks in some states. Drive hours are only the time the wheels are turning. They do not include the 30-minute break, the 10 hours off duty between shifts, or time at the shipper and receiver. That is why drive hours and transit days do not convert at 24 hours to a day. The hours of service rules, covered next, decide how many of those drive hours fit into one day.

Federal hours of service rules limit how long a property-carrying driver may drive, and they are the reason a truck cannot run around the clock with one driver. The FMCSA summary (opens in a new tab) sets these limits:

• Up to 11 hours of driving after 10 consecutive hours off duty.
• No driving beyond the 14th consecutive hour after coming on duty, and off-duty time does not extend that window.
• A 30-minute break after 8 cumulative hours of driving.
• No driving after 60 hours on duty in 7 days or 70 hours in 8 days.
• A 34-hour restart, 34 consecutive hours off, resets the 60 or 70 hour clock.
• A sleeper berth split of at least 7 hours in the berth plus at least 2 off duty or in the berth, totaling 10.

Drivers record these hours on electronic logging devices (opens in a new tab), so the limits are enforced minute by minute. A driver who runs out of hours must stop, wherever the truck is.

The solo planning rule of about 550 miles a day comes straight from the hours of service limit and the lane finder's average speed: 11 hours of driving x 50 mph = 550 miles. It assumes the driver uses the full 11 hours inside the 14-hour window, which leaves 3 hours for the 30-minute break, a fuel stop, a pre-trip inspection and minor delays. Then the driver takes 10 hours off before driving again. That is why a solo truck covers about 550 miles in a calendar day, however empty the road. The lane finder divides road miles by 550 and rounds up: a 708 mile lane is 708 / 550 = 1.29, so 2 days solo. Rounding up is deliberate, because a load that needs 1.29 days of driving does not arrive at 1.29 days; it arrives during the second day's shift. This is Powerhaul's planning assumption, not a legal figure. City traffic and appointments push it lower.

A team is two drivers in one truck taking turns, and it is the only legal way to keep freight moving most of the day. One drives while the other rests in the sleeper berth, and each driver follows their own hours of service clock. The lane finder's team planning rule is about 1,000 miles a day, which at 50 mph is 1,000 / 50 = 20 hours of driving. It is not double the solo figure of 550, because driver swaps, fuel, inspections and the 30-minute breaks take time even with two people. The arithmetic shows where teams pay off. A 708 mile lane is 708 / 1,000 = 0.71, so 1 day team against 2 solo. A 2,200 mile lane is 3 days team against 4 solo. Teams cost more per mile than solo drivers, so they make sense when the time saved is worth it: perishable food, production parts for a line, and freight with a hard deadline. That is what our expedited and team service is for.

Chicago to Atlanta runs about 715 to 730 road miles by I-65, I-24 and I-75, through Indianapolis, Louisville, Nashville and Chattanooga. Apply the lane finder's math to the upper figure.

A solo driver covers about 550 miles on day one, uses the full 11 hours, takes 10 off, and runs the last 730 minus 550 = 180 miles the next morning. That suits a next-day afternoon or second-day morning appointment. A team can deliver the same day it loads, if pickup is early. One detail catches shippers out: the lane crosses from Central to Eastern time, so the clock in Atlanta reads an hour later than in Chicago. A load leaving Chicago at 6 a.m. Central with 15 hours of driving ahead lands later on Atlanta's clock than the arithmetic suggests. Write delivery appointments in the receiver's local time.

Salinas to Chicago is a long haul of about 2,200 road miles, north on US-101 and east on I-80, and it shows why teams matter for perishables.

Solo, the math lands exactly on 4 days, which means a solo driver must use every available hour of each shift to make it; any delay at the shed or on the Sierra Nevada crossing pushes delivery to day five. Team, the tool rounds 2.2 up to 3 days, and on a clean run a team can deliver in a little over two. The lane guide states the team figure as about 2 to 3 days for that reason. For leafy greens loaded in the Salinas Valley, a day saved is a day of shelf life at the receiver. Reefer loads on this lane also need the set point confirmed before pickup. Our reefer service and the produce and agriculture page cover the cold chain side.

Houston to Dallas is a short haul of about 240 road miles on I-45, and it shows where the day math stops mattering. Drive hours are 240 / 50 = 4.8, so about 5 hours. Solo days are 240 / 550 = 0.44, and the lane finder's minimum of one day applies. Team days are also one, so a team adds cost and saves nothing. With 11 hours of driving available, one driver can load in Houston, drive to Dallas and unload the same day. On a lane this short, the real constraints are the hours at each end: loading time at the shipper, appointment windows at the receiver and traffic in both metros. A flatbed load also needs time for securement and tarping, which counts against the driver's 14-hour window even though the wheels are not turning. For short regional freight like this, plan around dock hours and appointment times, not miles. Repeat freight on lanes like this often runs best as dedicated lanes.

Real truck routes can run longer than the lane finder's estimate, because trucks cannot take every road a car can. Large trucks are generally routed on the Interstates and the National Network, where the federal 102 in width limit (opens in a new tab) applies and no state may set a different one, and some parkways and city streets ban them outright. Bridge clearances matter: there is no federal height limit, and states set their own, generally about 13.6 to 14.6 ft, so a low bridge on the shortest route forces a detour. Weigh stations and inspection sites add stops. Hazardous materials have their own designated routes, tunnels can be closed to them, and oversize loads follow the routes on their permits. Mountain grades slow loaded trucks, and winter weather can close mountain passes such as I-80 over the Sierra Nevada. Truck-specific routing software accounts for these restrictions, which is why the routed miles on a rate confirmation can be higher than the estimate here. Always plan with the routed figure once you have it.

The lane finder's days count driving only, so a realistic delivery date needs a few more items added. Time at the shipper comes first: a live load can take hours, and the driver's 14-hour window starts when they come on duty, not when the truck rolls. Appointment windows at the receiver come next, because a truck that arrives at 2 p.m. for an 8 a.m. appointment the next day has gained nothing. Detention at either end eats into hours of service and can push a load into another day. The 60 and 70 hour weekly limits matter on long lanes, since a driver near the end of their week may need a 34-hour restart before delivering. Add the pickup day itself: a load picked up at 4 p.m. has few legal hours left that day. A good dispatcher builds the schedule backward from the delivery appointment, counting each of these, and that schedule is the one to trust.

The lane finder is built for the first conversation about a load: whether it is a one-day or a four-day run, and whether it needs a team. Run the lane, note the solo and team days, then check them against your delivery date and the freight's tolerance for time. If solo days fit with a day to spare, a solo full truckload is usually the right booking. If solo days land exactly on your deadline, ask about a team or an earlier pickup. If the freight is perishable or a production line is waiting, plan for a team from the start. Once you know the equipment, the "Price this lane" button sends the cities and trailer type to our quote form, where a person, not a formula, prices it. One person is on every load. The freight glossary explains team and solo terms if a carrier uses one you have not seen.