Weigh the finished parcel
Put the packed box on the scale, not the bare item. Mailer, tape and filler run 2 to 4 oz, which is exactly the width of a postal ounce tier — the difference between the $8.86 quote and the $9.91 one above.
One pound
How much it costs to ship a 1 lb package
One pound is the first full-pound rung of the rate ladder, and on 2026-08-10 it opened at $9.91 to Nashville and $11.12 to Los Angeles for a 10 x 7 x 3 in box — checkout totals, our charge already inside. The same box was also quoted at 12 oz, because just below this weight USPS switches to ounce tiers and the arithmetic changes carrier by carrier.
Two lanes, one morningThe 12 oz contrastAll-in totals
Sixteen ounces, priced
A phone in its retail box, two paperbacks, a folded hoodie — with mailer and filler, each packs out near the one-pound mark.
One box, two distances
| Service | Price | Estimate returned |
|---|---|---|
| USPS Ground Advantage | $9.91 | 3-4 business days |
| UPS Ground | $10.69 | 2-3 business days |
| USPS Priority Mail | $14.49 | 3-4 business days |
| UPS 3 Day Select | $15.13 | 2-3 business days |
| UPS 2nd Day Air | $16.58 | 2-3 business days |
| Service | Price | Estimate returned |
|---|---|---|
| USPS Ground Advantage | $11.12 | 6-7 business days |
| UPS Ground | $12.99 | 6-7 business days |
| UPS 3 Day Select | $16.40 | 3-4 business days |
| USPS Priority Mail | $16.47 | 3-4 business days |
| UPS 2nd Day Air | $19.16 | 2-3 business days |
Cross-country, the decision flips from price to patience. Both budget rows posted 6-7 business day windows to Los Angeles, while stepping up to UPS 3 Day Select at $16.40 or Priority Mail at $16.47 bought roughly three days back over the $11.12 floor. To Nashville there was nothing worth buying — UPS Ground already held the fastest window on the lane at the second-lowest price, and the air tiers merely matched its estimate at a premium.
The ounce line sits just below this weight
The ounce tiers USPS publishes for Ground Advantage — up to 4, 8, 12 and 15.999 oz — end exactly where the pound scale begins (usps.com, read 2026-08-10). To see what that boundary is worth, the Nashville quote was repeated with the identical box packed to 12 oz.
| Service | At 12 oz | At 1 lb |
|---|---|---|
| USPS Ground Advantage | $8.86 | $9.91 |
| FedEx Ground Economy | $10.06 | Not returned at 1 lb |
| UPS Ground | $10.69 | $10.69 |
| USPS Priority Mail | $14.49 | $14.49 |
| UPS 3 Day Select | $15.13 | $15.13 |
Only the postal row moved. Shaving four ounces of packaging off a one-pound parcel took USPS from $9.91 to $8.86 and changed nothing anywhere else, and the effect runs in reverse too: an item that packs out at 17 oz sits two ounces from a cheaper tier, which a padded mailer instead of a box will often find. FedEx's budget service quoted the lighter box and sat out the heavier one — carriers add and drop rows by lane and weight, which is a routine reason to compare rather than assume.
Getting a light parcel priced right
Size is forgiving here, mostly
Ground Advantage bills dimensional weight only past one cubic foot, 1,728 cubic inches (usps.com, read 2026-08-10). This 10 x 7 x 3 box is 210 — a pound rattling around a huge carton is the only way to lose that margin.
Describe it, do not estimate it
Type the actual item into the calculator with your two ZIP codes. It sizes the parcel, then lines up every service above on your real lane instead of ours.
Common questions
How much does it cost to ship a 1 lb package?
On 2026-08-10 a 10 x 7 x 3 in box at 1 lb ran $9.91 to $16.58 from New Jersey to Nashville, TN and $11.12 to $19.16 from New Jersey to Los Angeles, CA across five services. All figures are checkout totals with our charge inside.
What is the cheapest way to ship 1 lb?
USPS Ground Advantage on both lanes captured for this page, at $9.91 and $11.12. UPS Ground sat close behind at $10.69 to Nashville while posting the faster window there, so the cheapest row and the best row are not automatically the same one.
Does 15.999 oz really cost less than 16 oz?
On USPS it can. Ground Advantage prices by ounce tier up to 15.999 oz (usps.com, read 2026-08-10), and our identical box quoted $8.86 at 12 oz against $9.91 at a full pound. UPS Ground and Priority Mail returned the same figures at both weights.
How fast does a 1 lb package arrive?
USPS publishes an expected 2-5 day window for Ground Advantage (usps.com, read 2026-08-10). Our quotes returned 3-4 business days to Nashville and 6-7 to Los Angeles on the budget rows, with UPS 2nd Day Air holding 2-3 business days on both lanes.
What items weigh about a pound packed?
A phone in its retail box, two paperbacks, a folded hoodie, most board-game expansions. The mailer, tape and filler contribute a few ounces of that pound, which is why the scale reading that matters is the one taken after packing.
Where these figures come from
- Live quotes captured from our production rate engine on 2026-08-10: one 10 x 7 x 3 in box quoted at 1 lb and again at 12 oz, Berkeley Heights, NJ 07922 to Nashville, TN 37203 and to Los Angeles, CA 90012. Figures are checkout totals.
- USPS, USPS Ground Advantage — the ounce tiers up to 15.999 oz, the 70 lb maximum, the dimensional weight rule past one cubic foot and the expected 2-5 day window. Read 2026-08-10.
Carriers reprice without warning and adjusted tables more than once this year already. Pull a fresh quote the day you ship; these figures show the shape of the market on the date captured, nothing longer-lived than that.