About Delivery Time Calculator

A free, independent tool helping millions estimate USPS shipping times accurately.

Our Mission

We built Delivery Time Calculator to solve a simple problem: people need accurate shipping estimates before they send packages, not after. Whether you're an online seller, a small business owner, or just sending a gift to family, knowing when your package will arrive helps you plan better.

Our calculator uses real USPS service standards and delivery data to provide estimates you can actually rely on. We're transparent about the limitations and always encourage using official USPS tracking for in-transit packages.

Meet Our Team

Our team combines logistics expertise, data analysis, and user experience design to deliver accurate, easy-to-use shipping estimates.

Sarah Mitchell

Logistics Research Lead

10+ years experience in shipping logistics and e-commerce fulfillment. Previously worked at major fulfillment centers analyzing delivery patterns.

David Chen

Data Analyst

Specializes in postal service data analysis and delivery time modeling. Background in statistics and predictive analytics.

Maria Rodriguez

Content & UX Lead

Expert in making complex shipping information accessible. Focuses on user experience and clear communication.

What We Stand For

Accuracy First

We use official USPS service standards and real-world data. Our estimates reflect actual delivery performance.

User-Focused

No sign-ups, no fees, no spam. Just enter your ZIP codes and get your estimate. Simple as that.

Always Free

Our calculator is 100% free to use. We believe shipping information should be accessible to everyone.

Honest & Transparent

We clearly state our limitations. We're not USPS, and we tell you when estimates may vary.

Our Methodology

Our delivery estimates are based on a combination of:

Official USPS Service Standards - Published delivery timeframes for each mail class
Zone-Based Calculations - Distance between origin and destination ZIP codes affects delivery time
Historical Performance Data - Real-world delivery patterns and seasonal variations
Processing Time Buffers - Account for weekends, holidays, and typical handling delays

Our confidence ratings indicate how predictable delivery times typically are for each service and distance combination.

Important Disclaimer

We are NOT affiliated with, endorsed by, or connected to the United States Postal Service (USPS) in any way.

This is an independent tool that provides estimates based on publicly available USPS service standards. Our estimates are for planning purposes only and should not be considered guarantees.

For official shipping, tracking, and customer service, please visit usps.com.

How Our Calculator Works

1
Enter ZIP Codes
Provide your origin (where you're shipping from) and destination ZIP codes.
2
Calculate Distance Zone
We determine the USPS zone between locations, which affects delivery time and pricing.
3
Apply Service Standards
We apply official USPS delivery standards for each mail class to estimate arrival dates.
4
Factor in Handling Time
We account for weekends, holidays, and typical processing delays to give realistic estimates.

Have Questions?

We're here to help. If you have questions about our calculator or suggestions for improvement, please reach out.