How We Estimate Car Shipping Costs Now, and Why Every Number Shows Its Math

We have been in this business since 1999, and for most of that time the price of shipping a car has been something you found out by asking. You typed in a route, a number came back, and how that number was arrived at stayed behind the curtain. This month we pulled the curtain down. Every price range on this site -- every route page, every state corridor, every city page, the cost pages -- now comes from one published formula, and the page that explains the formula shows the exact parameters the code is using. If the two ever disagree, that is a bug, and it cannot happen quietly, because the page reads the same file the calculator does.

Here is the whole thing in one breath. Start with a $300 fixed charge, which covers the parts of a move that do not care how far the truck drives: loading, unloading, dispatch, paperwork. Add mileage in tiers that get cheaper as the trip gets longer, the way tax brackets work in reverse: $0.90 a mile for the first 500 miles, $0.55 for the next 500, $0.35 out to 2,000, and $0.30 beyond that. Multiply by a fuel adjustment tied to this week's national diesel price. Multiply by the season and the direction. Multiply by the vehicle class, and again if you want an enclosed trailer, a rural pickup, a non-running car, or a guaranteed window. Put a band of plus or minus 15% around the result, round to the nearest $10, and that is your estimate.

The tiers matter more than they look. The old approach on most sites, ours included, was a flat rate per mile that stepped down at fixed distances. That produces a strange result: a 1,010-mile move could come out cheaper than a 990-mile one, because it fell into the next bracket. Marginal tiers fix that. The estimate never goes down as the distance goes up, which is how the real world works.

“A price you cannot check is a guess with a dollar sign on it. Every estimate on this site can be checked, line by line, against the page that explains it.”

Fuel is the one input that changes every week, so we do not hard-code it. The formula pulls the U.S. Energy Information Administration's weekly diesel price and compares it to its own trailing 52-week average. Diesel is about 20.6% of a carrier's cost per mile, per the American Transportation Research Institute's 2026 operating cost study, so a 10% jump in diesel moves the estimate by about 2%. This week that adjustment is not small: diesel is $6.53 a gallon against a 52-week average of $4.63, which adds roughly 8% to every range you see. When diesel comes back down, the estimates will follow it without anyone touching a thing.

Season and direction are the part people underestimate. Snowbird traffic runs south in October and November and north in April and May, and on those corridors the loaded direction pays a premium while the return direction gets a discount, because carriers are trying to fill an empty trailer on the way back. Summer relocations push everything up a little from June through August. December and January are the quiet months. The formula carries a month-by-month table for all of this, and every route page shows you the twelve-month version so you can see what waiting a few weeks would do.

What the table above shows is the simplest case: a sedan on an open carrier, metro to metro, this month. An SUV runs about 12% more, a pickup or large SUV about 25%, and an oversize or modified vehicle 50%. Enclosed transport is 50% on top of open, because an enclosed trailer carries two to six cars where an open hauler carries seven to nine. A rural pickup or delivery adds 10% for the detour. A car that does not run adds 20% for the winch and the carrier who has one. Those multipliers are all on the methodology page with the source for each.

There is one input we are still building out, and we would rather tell you than have you notice. Distance should be road miles, and for the routes we have not yet measured, the formula uses the straight-line distance times 1.2 and says so under the table, with a wider 22% band to be honest about the uncertainty. We are filling in real road miles for every corridor on the site a few hundred pairs a day, and as each one lands, the band on that page tightens automatically.

Now the part that matters most. An estimate is not a price. It is what the market should charge for your move, based on public data, and it is the number you should hold up against the offers you get. Your actual price comes from the licensed auto transport company you choose to book with, in writing, before a truck moves. If a company's offer is well inside our range, good. If it is far below it, ask what is not included, because the missing money usually turns up at delivery. If it is far above it, ask what about your move justifies the difference, and expect a specific answer.

We built it this way because it is the version of this business we would want to use ourselves. The math is public. The inputs are public. The page that explains it cannot drift from the code that runs it. Get your free estimate, compare it to the offers that come back from vetted, licensed companies, and choose with the numbers in front of you.