Compare shipping costs before you set your price.
Enter package weight, shipping zone, and sale price. Get carrier estimates and see how free shipping would impact your margin.
Shipping cost estimator
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Free shipping converts
Studies consistently show that free shipping increases conversion rates by 20–30%. The key is building the shipping cost into your item price so you don't absorb it as a loss. Know your average shipping cost per order before you commit.
Zone pricing explained
Carriers divide the US into 8 zones based on distance from your origin ZIP. Zones 1-2 are cheapest (same state or neighboring state). Zones 7-8 are most expensive (coast to coast). If most of your buyers are across the country, budget for higher zones.
When to build shipping into price
- When your item price is above $25 and shipping is $7–$10
- When your competitors all offer free shipping
- When your average zone is 3 or higher
- When you sell on Etsy (search ranking boost)
How much does USPS charge to ship a package?
USPS First Class is the cheapest option for packages under 1 lb, typically $3.50–$6.00 depending on zone. USPS Priority Mail runs $7.50–$15+ for heavier or longer-distance packages. Rates vary by weight and shipping zone — use this estimator to compare before you set your price.
Does offering free shipping hurt my margin?
Yes — unless you've built shipping cost into your sale price. If your item sells for $28 and shipping costs $7, offering free shipping means absorbing that $7 directly from your profit. To offer free shipping without hurting margin, raise your price by the average shipping cost you expect to pay.
What is a shipping zone and why does it matter?
Shipping zones measure the distance between origin and destination ZIP codes. Zone 1-2 is local (cheapest), Zone 7-8 is coast-to-coast (most expensive). A package that costs $7 to ship locally can cost $14+ to ship cross-country. If you ship nationwide, price for the average zone your orders come from.
Selling digital downloads?
CareerKit Digital offers ready-to-sell templates and guides for creators who want to add digital products to their revenue mix.