USPS Shipping Formulas:
From: | To: |
The USPS Time and Cost Calculator estimates shipping duration and cost based on distance, weight, and service type. It helps users plan shipments and budget for mailing expenses.
The calculator uses these formulas:
Where:
Explanation: Different service types have different base rates and speed assumptions that affect the final calculation.
Details: Accurate time and cost estimates help businesses and individuals plan shipments, manage budgets, and set customer expectations for delivery times.
Tips: Enter distance in miles, weight in pounds, and select the appropriate service type. All values must be positive numbers.
Q1: How accurate are these estimates?
A: These are approximations based on standard USPS service levels. Actual times may vary due to weather, holidays, or other factors.
Q2: Do these rates match current USPS prices?
A: The calculator uses sample rates. For exact current rates, please check the official USPS website.
Q3: What about international shipping?
A: This calculator is designed for domestic US shipping. International rates and times are calculated differently.
Q4: Are there weight limits?
A: USPS has different weight limits for different service types (typically 70 lbs max).
Q5: How can I get faster delivery?
A: Choose Express Mail for fastest delivery, though it comes at a higher cost.