A rate is not a price
Freight quotes are built in layers and only the last layer is what you pay. A rate per hundredweight gets multiplied by the weight, then reduced by a discount, then compared against a minimum charge and replaced by it if it is lower, then has accessorial charges added, then has a fuel surcharge applied as a percentage of some subset of the above. Two quotes can differ at every one of those steps and still land within a few dollars of each other, or agree at four steps and differ by half.
This is why comparing rates is close to meaningless and comparing discounts is worse. A 68 percent discount off a high base and a 55 percent discount off a low base are not comparable numbers until you have multiplied them out against your actual weight. The only figure that can be compared is the landed total for a specific shipment, which is what this calculator produces.
The minimum charge decides more shipments than people think
Every quote has a floor. Below a certain weight the rated charge falls under it and you pay the floor instead, which means the rate and the discount stop doing anything at all. On small shipments the comparison collapses to three numbers: the minimum, the accessorials, and the fuel percentage applied on top.
The calculator flags which quotes are billing at the minimum. If yours are, negotiating the discount is wasted effort and the conversation to have is about the minimum itself, or about whether the shipment should be moving as freight at all rather than as parcels. If the shipment is small enough to hit the minimum, running it through the dimensional weight calculator as parcels is a comparison worth doing.
Fuel and accessorials, the two lines that move after booking
| Charge | Why it changes | What to do about it |
|---|---|---|
| Fuel surcharge | It is a percentage that is republished on a schedule, so it is different next week | Ask what it is today and what it was a year ago, then model both |
| Base rate applied to | Whether fuel applies to accessorials as well as line haul | The select at the top of this form; ask which one your quote uses |
| Liftgate, residential, inside, appointment | Nobody mentions them at booking and the driver discovers them at the door | Confirm both ends before tendering and put them in the quote |
| Reweigh and reclassification | The freight was not what the paperwork said | Measure and weigh it properly first — see the density calculator |
The second column is the reason none of these are built in as defaults. A fuel percentage from six months ago is not a fuel percentage, and an accessorial schedule from one carrier is not another carrier's. Every one of these is an input and every one should come from the quote in front of you.
Cost per unit is the number the rest of the business cares about
Freight is a cost of goods question dressed as a logistics question. The figure that belongs in a margin calculation is the landed freight per sellable unit, and it changes with the shipment size in a way that per-hundredweight numbers hide. Consolidating two shipments into one usually reduces the per-unit cost even at the same rate, because minimums and accessorials are per shipment rather than per pound.
Enter the units on the shipment and the calculator gives you the per-unit figure for each quote, which is what to carry into the margin calculator and into your pricing. If freight per unit is a meaningful share of the margin, it belongs in the free shipping threshold calculation too, because a threshold set without it will quietly lose money on every order that clears it.
Questions people ask
Which quote should I actually take?
The one with the lowest landed total for the shipment you are moving, adjusted for whether the transit time matters to you and whether you trust the carrier to deliver it undamaged. This calculator gives you the first part and cannot give you the other two. A quote that is thirty dollars cheaper and two days slower is a different decision when the freight is a stocking order than when it is a line-down replacement, and the calculator shows the cost per day saved so you can price that yourself.
What is a hundredweight and why is freight priced that way?
A hundredweight, written cwt, is one hundred pounds. Rates are quoted per hundredweight because it produces workable numbers across the range of shipment sizes that move as freight, where per-pound rates would run to fractions of a cent and per-ton rates would be too coarse. To convert, divide the weight by one hundred and multiply by the rate: a 1,450 pound shipment is 14.5 cwt, so a rate of 38.50 per cwt gives a gross charge of 558.25 before any discount.
Why do two quotes for the same shipment differ so much?
Usually because they are not for the same shipment. The most common causes are a different assumed weight, different dimensions, a different commodity description or class, and a different list of services at pickup and delivery. Before concluding that one carrier is expensive, check that both quotes name the same weight, the same piece count and dimensions, the same description, and the same accessorials. When the spread is more than about forty percent, a mismatch is more likely than a genuine price difference, and the calculator says so.
Should the fuel surcharge apply to accessorials?
That depends on the agreement, which is why it is a select rather than an assumption. Some quotes apply the percentage to the line haul only and some apply it to the line haul plus accessorial charges, and on a shipment with heavy accessorials the difference is real money. Ask which basis the quote uses. If nobody can tell you, model both and treat the higher one as your planning number.
Can I use this for parcel shipments too?
Partly. The structure of a parcel bill is different — it is built on billable weight and zone rather than a rate per hundredweight with a discount — so the breakdown here will not map cleanly. What does carry over is the habit of comparing landed totals rather than headline rates, and of treating surcharges as part of the price rather than as an afterthought. For a single parcel, the dimensional weight calculation is the place to start, and the box that parcel goes in is worth checking against the void fill calculator before you compare anything.