Key Takeaways Speed and Coverage: Both carriers reach every commercial address in the contiguous U.S. within 1 to 5 days. Today, transit times are virtually identical on most routes. Pricing Nuance: Neither carrier is cheaper across the board. The right pick for your business depends entirely on package weight, shape, and delivery destinations. Billable Weight: Your rate is calculated on dimensional weight, not just actual weight, and standard formulas round box dimensions up