USPS Delivery Time Calculator by State or ZIP Code
Get a quick USPS delivery estimate using the state-to-state calculator or ZIP-to-ZIP lookup.
Shows estimated calendar arrival dates.
Shows the latest estimated mail-by date.
Reminder: This calculator gives an estimate. We cannot guarantee delivery times.
Mail Time Estimator Tool Explained
We built this tool to help people quickly estimate how long it will take a piece of mail to travel from one state to another. After seeing so many different combinations of states being mailed to, we realized we had a good system for estimating delivery times. The crazy thing is that there are 1,225 unique state pairings. Fortunately, this tool accounts for every one of them.
- Use state mode for a quick First-Class or Priority Mail estimate between states.
- Use ZIP-to-ZIP mode when you want a more specific USPS benchmark between two ZIP codes.
- For deadline mail, use the high end of the estimate and add extra buffer for USPS holidays.
- For holidays, check the USPS holiday schedule before choosing a send date.
How USPS Zones and ZIP Codes Affect Delivery Time
USPS transportation zones are based mainly on the distance between the origin and destination. Nearby ZIP Codes often have shorter service standards, while cross-country, Alaska, Hawaii, and remote routes can take longer.
A ZIP-to-ZIP estimate is more specific than a state-to-state estimate because it compares the actual origin and destination areas. Mail class, processing time, holidays, weather, and address quality can still change the delivery date.
Frequently Asked Questions
How long does mail take from ZIP Code to ZIP Code?
Use ZIP-to-ZIP mode and enter the two five-digit ZIP Codes plus the mail class. The tool returns a USPS service-standard benchmark when one is available; otherwise, use the state estimate. It is an estimate, not a delivery guarantee.
Are USPS service standards guaranteed?
No. USPS service standards are benchmarks, not delivery guarantees. Weather, holidays, incorrect addresses, processing delays, and the actual handoff time can change the final delivery date.
Why does First-Class Mail show a range?
First-Class Mail timing depends on distance, processing, mail shape, and local delivery conditions. The state estimate shows a range, while ZIP-to-ZIP mode can show a narrower USPS benchmark when standards are available.
Does this include weekends or holidays?
The business-day estimate does not guarantee weekend or holiday handling. When ZIP-to-ZIP mode returns an expected date, use it as the USPS benchmark for that request and still add buffer around holidays.