Delivery Time USPS Calculator
USPS Delivery Time Calculator works out Earliest delivery and Latest delivery from Service, Ship date and Accepted before the day’s cut-off. The default figures on this page give latest delivery of 2026-01-06; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
5 steps
- USPS Priority Mail: published standard 1-3 transit days, delivered Monday to Saturday.
- Using the published standard: 1-3 days.
- Transit is counted from 2026-01-02.
- Counting 1 then 3 delivery days gives 2026-01-03 and 2026-01-06.
- No federal holidays fall inside the window.
Its 4 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
4 sources
What the USPS Delivery Time Calculator calculates
Estimates the delivery date window for a parcel from its ship date and the carrier service, counting transit days the way the carrier does: USPS counts Monday to Saturday, FedEx and UPS ground and express services Monday to Friday, and Priority Mail Express is quoted in calendar days because it delivers every day. Federal holidays are skipped. The transit-day ranges are the carriers’ published service standards, which are estimates, not guarantees - the real commitment depends on the origin and destination and can be entered directly.
How to use this USPS Delivery Time Calculator
Enter Service, Ship date, Accepted before the day’s cut-off and Transit days quoted (fastest). Earliest delivery updates as you type. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Earliest delivery, Latest delivery and Earliest delivery falls on.
The method follows USPS service standards (39 CFR Part 121) and the USPS Service Commitments page, FedEx Service Guide, US package services, UPS Service Guide, US domestic services and 5 U.S.C. 6103 - Federal legal public holidays.
What you can compare
Change one input at a time to see how it affects Earliest delivery, Latest delivery and Earliest delivery falls on. The inputs you can vary are Service, Ship date, Accepted before the day’s cut-off, Transit days quoted (fastest), Transit days quoted (slowest) and Holidays.
Understanding Earliest delivery, Latest delivery and Earliest delivery falls on
Service standards are estimates published for typical lanes. Only the carrier’s own quote for your origin and destination is a commitment, and severe weather, customs and remote destinations add days.
USPS is a trademark of its owner. CalculatorFox is an independent website and is not affiliated with, endorsed by or connected to USPS; this calculator is a general estimate and the official figures are the ones published by USPS.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
How long will mail take from zip code to zip code calculator USPS?
Estimates the delivery date window for a parcel from its ship date and the carrier service, counting transit days the way the carrier does: USPS counts Monday to Saturday. Open “How this is worked out” beside the result to see each step for your own figures.
How to get an estimated delivery time on USPS?
It needs Service, Ship date, Accepted before the day’s cut-off, Transit days quoted (fastest), Transit days quoted (slowest) and Holidays. Nothing else is required, and the figures stay in your browser.
How long does it take for USPS shipping to arrive?
On the figures this page opens with, the latest delivery is 2026-01-06. No single number fits everyone: it follows Service, Ship date and Accepted before the day’s cut-off, so enter your own above and the answer updates as you type.
What information do I need for the USPS Delivery Time Calculator?
You need Service, Ship date, Accepted before the day’s cut-off, Transit days quoted (fastest), Transit days quoted (slowest) and Holidays. The page opens with default figures that give latest delivery of 2026-01-06, so you can see the scale before entering your own.
What does this USPS Delivery Time Calculator show?
It shows Earliest delivery, Latest delivery, Earliest delivery falls on, Latest delivery falls on, Delivery window, Transit days (fastest), Transit days (slowest) and Transit days are, with the working and any warnings for your entries.
Can I check how the USPS Delivery Time Calculator result was calculated?
Yes. The “How this is worked out” section shows the calculation steps, and the sources section identifies the references used for the method.