How Shipbase Works

    Three simple steps to find the cheapest shipping rate and start saving.

    Step 1: Enter Your Package

    Choose from preset package sizes — Small, Medium, Large, or a typical eCommerce Mix. No need to measure anything; we handle the dimensional weight calculations automatically.

    Step 2: Compare All Carriers

    Instantly see retail shipping rates across USPS, UPS, FedEx, and DHL. Rates include fuel surcharges, residential delivery fees, and DIM weight pricing — sorted from cheapest to most expensive.

    Step 3: Unlock Savings

    See estimated commercial rates through platforms like ShippingEasy, ShipStation, Easyship, and Shippo. These platforms negotiate bulk discounts and pass the savings to you — often with no volume minimums.

    Frequently Asked Questions

    What is the cheapest way to ship a package in 2025?

    For lightweight packages under 5 lbs, USPS Ground Advantage is typically the most affordable. For heavier items, UPS and FedEx Ground become competitive. Using a commercial pricing platform can reduce costs by 40–90% compared to retail counter rates.

    What is dimensional weight (DIM weight)?

    Dimensional weight is a pricing method used by all major carriers. It's calculated as (Length × Width × Height) ÷ 139. Carriers charge based on whichever is greater: actual weight or DIM weight. This means lightweight but bulky packages may cost more than you expect.

    How are commercial rates different from retail rates?

    Retail rates are what you'd pay at the post office counter or on a carrier's website. Commercial rates are pre-negotiated bulk discounts that shipping platforms offer to their users. You don't need high volume — many platforms offer discounts from your very first shipment.

    Do I need a business account to get discounted rates?

    No. Platforms like Shippo and ShippingEasy offer commercial pricing to anyone — individuals, side hustles, and small businesses. There are no volume minimums required to start saving.

    What are fuel surcharges?

    Fuel surcharges are percentage-based fees added on top of base shipping rates by carriers. They typically range from 10–15% and are updated quarterly based on fuel costs. Our calculator includes estimated fuel surcharges in every rate.

    What is a residential delivery surcharge?

    UPS and FedEx charge an additional $4–$6 per package for deliveries to residential addresses (as opposed to commercial addresses). This fee is automatically included in our rate calculations.

    How accurate are these rate estimates?

    Our calculator uses 2025 base rates with fuel surcharges, residential fees, and DIM weight calculations. Actual rates may vary slightly based on specific origin/destination ZIP codes, any existing carrier account discounts, and rate changes throughout the year.

    What is the "Mix" package size option?

    The Mix option calculates a weighted average rate using 40% small packages, 40% medium packages, and 20% large packages. This represents a typical eCommerce business's package distribution and gives you a realistic blended cost per shipment.

    Are the shipping platforms free to use?

    Most platforms offer free or low-cost starter plans. ShippingEasy has a $0/month starter plan, Easyship offers a free tier, and Shippo charges per label with no subscription. ShipStation offers a trial period before paid plans begin.

    Does Shipbase earn money from these recommendations?

    Yes. Shipbase may earn a commission when you sign up for a shipping platform through our links. This is at no extra cost to you — the commercial rates you receive are the same whether you use our link or go directly to the platform.