1. What is USPS Service Availability?

Service Availability measures the percentage of mail or packages successfully delivered by USPS out of the total sent. It's a key performance indicator for postal service reliability and efficiency.

2. How Does the Calculator Work?

The calculator uses the simple availability formula:

Where:

• \( Delivered \) — Number of successfully delivered items
• \( Total \) — Total number of items sent

Explanation: The formula calculates what percentage of the total shipments were successfully delivered.

3. Importance of Service Availability

Details: Monitoring service availability helps businesses assess USPS performance, identify potential delivery issues, and make informed decisions about shipping methods.

4. Using the Calculator

Tips: Enter the number of delivered packages and total packages sent. Both values must be positive numbers, and total must be greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is considered good USPS availability?
A: Typically 95% or higher is considered good, but standards vary by mail class and destination.

Q2: How often should I calculate service availability?
A: Regular monitoring (weekly or monthly) helps track performance trends over time.

Q3: Does this account for delivery time?
A: No, this only measures whether items were delivered, not how quickly.

Q4: What factors affect USPS availability?
A: Weather, holidays, mail volume, and destination location can all impact delivery rates.

Q5: Should I compare this with other carriers?
A: Yes, comparing availability rates across carriers can help choose the most reliable service.