Nothing ships for $3
The cheapest quote in this table is $8.88 for an 8 oz box. Tracked parcel service has a floor, and prices advertised below it are almost always letter mail or a flat-rate teaser.
Under three pounds the carriers sit within a few dollars of each other, and the real money is lost on speed you did not need. Four real boxes, priced. Everything in the tables below was quoted through the SMKlog calculator on 2026-07-24. The prices are all-in — the carrier label plus what SMKlog charges — and nothing is added at checkout.
Prices on this page came out of the SMKlog calculator on 2026-07-24 for the exact boxes and routes listed. Run yours for today's rate.
| Box and weight | USPS | UPS | FedEx | Cheapest |
|---|---|---|---|---|
| 6 × 4 × 2 in, 8 oz | $8.88 Ground Advantage | $11.39 Ground | not offered | $8.88 USPS Ground Advantage |
| 9 × 6 × 3 in, 1 lb | $10.89 Ground Advantage | $10.75 Ground Saver | not offered | $10.75 UPS Ground Saver |
| 10 × 8 × 4 in, 2 lb | $11.12 Ground Advantage | $11.22 Ground Saver | not offered | $11.12 USPS Ground Advantage |
| 12 × 9 × 4 in, 3 lb | $8.88 Ground Advantage | $12.20 Ground Saver | not offered | $8.88 USPS Ground Advantage |
Four small cartons, one lane. The spread across the whole table is a few dollars, which is the real lesson: under about 3 lb the carrier choice matters less than not overpaying for speed you do not need.
The cheapest quote in this table is $8.88 for an 8 oz box. Tracked parcel service has a floor, and prices advertised below it are almost always letter mail or a flat-rate teaser.
Going from 8 oz to 3 lb changed the cheapest price by less than a dollar on this lane. Box size and service speed do more than the scale does at this end of the market.
A padded envelope can be cheaper, but it is also what gets crushed and lost. For anything you would mind replacing, the extra dollar for a rigid box is the cheapest protection available.
USPS Ground Advantage took three of the four boxes here, from $8.88 for an 8 oz parcel. UPS Ground Saver was within pennies on the 1 lb box, so it is worth comparing both.
Sometimes by a dollar or two, because it is smaller and lighter. It also offers almost no protection, so for electronics, jewellery, or anything fragile the box is the better trade.
$10.75 on this lane and this day for a 9 × 6 × 3 in box. Farther zones cost more; the same box to Los Angeles was quoted on our package price page.
For parcels it was folded into USPS Ground Advantage. That is the service quoted here, and it includes tracking end to end.
Yes. Describe what it is and SMKlog estimates the packed box and weight for you, then shows the same rates you would get by measuring. You can correct anything before you pay.