Quick answer
USPS is usually cheaper than UPS for a small seller's light packages: in our 2 lb example to zone 5, USPS Ground Advantage costs $9.95 with an online label, against $17.02 for UPS Ground at retail and $15.79 at daily rates. On heavy cross-country boxes the gap narrows, with UPS daily rates at $43.33 against $40.39 for USPS in our 20 lb example, but UPS adds a fuel surcharge and, at daily rates, a $6.50 residential surcharge for home deliveries. UPS is the carrier for boxes over the USPS limit of 70 lbs, since it takes packages up to 150 pounds.
Nation, an AI store builder, publishes this page. It is pre-launch, with a waitlist on withnation.ai, so it is not in the shipping price comparison. See where Nation fits.
UPS vs USPS: the short answer for small sellers
USPS is the cheaper carrier for most light packages a small shop sends. UPS takes heavier boxes, and its lower daily rates go to shippers with a scheduled UPS pickup, or a UPS contract that provides daily rates. Which carrier costs less for your package depends on four things: its weight, its box size, how far it travels and which price list you can use.
Both carriers price a package by weight and distance. USPS says you pay based on how much it weighs and how far it’s going (the zone). UPS uses zones too, and it bills the greater of actual and dimensional weight for every package. The table shows which carrier to price first.
UPS vs USPS prices on the same package
The examples use each carrier's published rate lists: the USPS Notice 123 price list, effective July 12, 2026, the UPS daily rates, updated September 7, 2026, and the UPS retail rates, updated September 7, 2026. FedEx Ground retail is added for anyone comparing UPS vs USPS vs FedEx.
Example packages: a 2 lb box sent to zone 5, a mid-distance trip, and a 20 lb box sent to zone 8, a cross-country trip, both delivered to a home. We assume both boxes are small enough that size pricing does not apply, and that the trip falls in the same zone at both carriers.
On the light box, the USPS online price is the lowest by a wide margin. At UPS, the daily rate plus the $6.50 residential surcharge comes to more than the retail rate, because the UPS Ground residential surcharge at retail is $0.00 in the lower 48 states.
On the heavy box, the USPS online price is still lower than the UPS daily rate, and the gap widens once UPS adds its surcharges. Both UPS lists leave fuel out: daily rates do not include a fuel surcharge, and retail rates also do not include a fuel surcharge. FedEx retail rates already include residential delivery charges, the residential and commercial delivery area surcharges and the fuel surcharge.
UPS vs USPS rates: which price list you actually get
Each carrier has more than one price list for the same package. In the 20 lb example, the gap between retail and the lower price at each carrier is larger than the gap between the two carriers, so work out which list applies to you before you compare UPS vs USPS shipping rates.
UPS applies its residential surcharge to any delivery to, or a UPS On-Call Pickup request from, a location that is a home, and that includes a business run from a home.
A home seller can get USPS commercial prices just by buying labels online; at UPS, the same seller pays retail rates.
How box size changes UPS vs USPS shipping costs
Box size matters most for light, bulky items such as pillows, lampshades or soft toys. USPS charges for size only when a box is larger than 1 cubic foot (1,728 cubic inches). Above that, it multiplies length, width and height and divides by 139 to get a dimensional weight.
UPS compares actual weight with dimensional weight on every package. It divides the cubic size by 166 at retail rates and by 139 for Daily Rates, rounds up to the next whole pound, then bills the greater of actual and dimensional weight.
Example: a pillow in a 14 x 14 x 8 inch box that weighs 2 lb. The box holds 1,568 cubic inches, under one cubic foot, so USPS charges the 2 lb price. At UPS retail rates, 1,568 divided by 166 rounds up to a 10 lb dimensional weight, so UPS Ground to zone 5 costs $27.38 instead of $17.02.
USPS has its own size charges for long or bulky parcels. A Ground Advantage package between 22 and 30 inches long adds $4.50, one more than 30 inches long adds $10.00, and one more than 2 cubic feet (3,456 cubic inches) adds $21.00. For long, light items, price both carriers before you choose.
UPS Ground Saver vs USPS Ground Advantage
UPS Ground Saver is a slower UPS ground service, and the last stretch of delivery can be handed to the Postal Service: UPS says packages may be delivered by UPS or the USPS.
The main difference for a small seller is access. UPS offers Ground Saver on a contract-only basis, and its price depends on shipper and package characteristics, including Zip Code distribution, weight, size, and volume. USPS Ground Advantage is open to anyone at the Post Office or online.
Without a UPS contract, the choice is between USPS Ground Advantage and UPS Ground.
UPS vs USPS shipping: delivery times and limits
The two ground services take about the same time. The bigger difference is how heavy and how large a package can be.
Pickup and drop-off
Your USPS mail carrier can pick up parcels for free during regular mail delivery, and Ground Advantage is eligible for free pickup, so a home seller does not need a trip to the Post Office.
UPS charges for a one-time pickup. An On-Call Pickup costs $9.65 booked for a future day or $15.75 for the same day, and the fee is charged per pickup request regardless of the number of packages.
A scheduled pickup is one way to get UPS daily rates, and it carries a weekly fee: $8.00 a week for one set pickup day, or $39.00 a week for a pickup every weekday.
Insurance and claims: UPS vs USPS
Both carriers cover a lost or damaged package up to a set amount without extra cost. USPS Ground Advantage includes $100 of insurance. UPS limits its liability to $100 per package unless you declare a higher value.
The claim windows differ. For either carrier, keep proof of what the item was worth and photos of any damage.
How to compare UPS and USPS rates for your own package
Do this once for your most common package, then again when the carriers publish new prices.
Weigh and measure the packed box
Use the weight with packing material and the outside dimensions. UPS bills actual weight rounded up to the next whole pound, and USPS Ground Advantage packages of a pound or more are charged by the pound up to 70 lbs (rounded up).
Work out the billable weight
For UPS, compare actual weight with dimensional weight and use the higher one. For USPS, do this only if the box is larger than 1 cubic foot (1,728 cubic inches).
Find the zone
Enter the origin and destination ZIP codes in each carrier's rate tool, since the same trip can fall in a different zone at each carrier.
Compare the price you can actually get
Use the USPS commercial price if you buy labels online, and the UPS rate type that fits you. UPS says retail rates apply if you ship from a UPS location or have no payment account or scheduled pickup.
Add the extras
Add the UPS fuel surcharge, the UPS residential surcharge if you ship to homes at daily rates, any pickup fee and any USPS size fee, then compare the totals rather than the list prices.
Where Nation fits
Nation
Category: an AI store builder
Nation says one description of what you make builds the store, then agents handle orders, customers and delivery and run ads, content and social posts, with you approving the work. Nation is not in the shipping price comparison.
Limits today
- Status: pre-launch, with a waitlist on withnation.ai.
- Pricing and fees: not announced yet.
- Shopper marketplace: no shopper marketplace has been announced.
- Track record: no independent reviews or public stores yet.
Nation publishes this page. Nation is not in the shipping price comparison.
Describe what you makeQuestions about UPS vs USPS
Is UPS or USPS cheaper?
USPS is usually cheaper than UPS for light packages. In our 2 lb example to zone 5, USPS Ground Advantage costs $9.95 with an online label, while UPS Ground costs $17.02 at retail and $15.79 at daily rates, before the fuel surcharge. At daily rates UPS also adds $6.50 for each delivery to a home.
Which is cheaper: UPS, USPS or FedEx?
For a small seller buying single labels, USPS is usually the cheapest of UPS, USPS and FedEx. In our 2 lb example to zone 5, USPS Ground Advantage costs $9.95 online, FedEx Ground retail costs $16.81 and UPS Ground retail costs $17.02. FedEx retail rates already include its fuel surcharge; UPS retail rates do not.
Is UPS Ground Saver cheaper than USPS Ground Advantage?
UPS Ground Saver costs more than USPS Ground Advantage at list prices in our example. For a 2 lb box to zone 5, the UPS Ground Saver rate list shows $17.07, against $9.95 for Ground Advantage online. Ground Saver is contract-only, and UPS prices it on shipper and package characteristics, including Zip Code distribution, weight, size, and volume, so a contract price can differ.
Is UPS faster than USPS?
UPS Ground and USPS Ground Advantage take about the same time. UPS Ground delivers in one to five business days, and USPS Ground Advantage delivers in 2-5 days. UPS Ground Saver is slower: its transit times are typically comparable to UPS Ground, plus approximately one to two additional business days, and its delivery date is not guaranteed.
What is the weight limit for UPS vs USPS?
The weight limit for UPS is higher than for USPS. USPS Ground Advantage takes packages up to 70 lbs, while UPS takes domestic packages up to 150 pounds each. UPS Ground Saver has the same limit as USPS, 70 pounds. For a box between the two limits, price UPS Ground or another carrier.
Does UPS or USPS pick up packages for free?
USPS picks up eligible packages for free during your regular mail delivery, and Ground Advantage is eligible for free pickup. UPS charges for a one-time On-Call Pickup: $9.65 for a future day or $15.75 for the same day, per pickup request rather than per package. A scheduled UPS pickup costs from $8.00 a week.