Shipping · United States

USPS vs UPS vs FedEx Shipping Cost Calculator

Compare your USPS, UPS and FedEx rates side-by-side for a single package. Enter each carrier's quoted rate (from your business account or their online estimator) plus optional surcharges and see the cheapest option and margin impact. Works in the browser, no signup.

Fees and shipping rates change. Paste your current quote for each carrier — this tool does not call any carrier API.

Inputs

Order value (for margin impact) ($)

USPS quoted rate ($)

USPS surcharges ($)

UPS quoted rate ($)

UPS surcharges (residential, fuel, DAS) ($)

FedEx quoted rate ($)

FedEx surcharges ($)

Result

USPS total: $9.45
UPS total: $17.30
FedEx total: $16.10
Cheapest carrier: USPS — $9.45
Cost as % of order value: 15.75%
Savings vs most expensive: $7.85

Enter negotiated business rates if you have them — retail counter rates are usually much higher.

Include residential, fuel, and delivery area surcharges (DAS) in the surcharge fields to get an apples-to-apples comparison.

Direct answer

To compare shipping rates across USPS, UPS and FedEx, quote the same package with each carrier, add residential and fuel surcharges, and pick the lowest total. This tool automates that math without touching any carrier API.

Key takeaways

USPS usually wins on lightweight residential parcels.
UPS and FedEx negotiated rates beat retail rates by 20–60%.
Surcharges (residential, DAS, fuel) can add $3–$7 per package.
Cheapest carrier can flip between zones for the same box.

Method

Total per carrier = Base rate + Fuel surcharge + Residential/DAS fees. Cheapest = min(totals). Margin impact = Total ÷ Order value.

How this tool works

Enter each carrier's quoted rate and surcharges. The tool sums them and identifies the cheapest total, then divides by order value to show margin impact.

When to use this

Use every time you evaluate a new SKU, adjust packaging, or start negotiating a new carrier contract.

Step-by-step

Pull rates from each carrier's online estimator or your business account.
Add residential, fuel and DAS surcharges into the surcharge fields.
Enter order value so the tool shows cost as % of revenue.
Pick the cheapest carrier — or the fastest, if service level matters more.

Scenario	Best carrier (typical)
1 lb, zone 4, residential	USPS Ground Advantage
5 lb, zone 6, residential	UPS Ground / FedEx Home
2-day, 3 lb, business	UPS 2nd Day Air / FedEx 2Day

Common mistakes

Comparing retail counter rates instead of business account rates.
Forgetting fuel and residential surcharges.
Assuming the winner is the same for every zone.

Frequently asked questions

Is UPS or FedEx cheaper?

It depends on the package weight, zone, and your negotiated rates. For lightweight residential packages UPS Ground and FedEx Home Delivery are usually close; for heavy or expedited packages one carrier can be materially cheaper. Compare quotes for your exact package.

Is USPS cheaper than FedEx?

For small parcels under about 1 lb, USPS Ground Advantage and Priority Mail are often cheaper than FedEx. For anything over ~5 lb going a few zones, FedEx or UPS ground service is frequently cheaper.

How do I compare USPS, UPS and FedEx rates?

Get a quote from each carrier's estimator using the same origin, destination and package details. Add residential and fuel surcharges. Enter the totals here to see the cheapest option and margin impact.

Does this tool use live carrier APIs?

No. Rates and surcharges change constantly. This calculator only compares numbers you paste in — that keeps it accurate and free.

Method and guidance reviewed by the AIFlowBiz Editorial Team.