How Many Stamps Do I Need?

Calculate exact USPS postage costs, find current 2025 stamp prices, and locate post offices near you. Get instant results for domestic and international mail with our free postage calculator.

Current 2025 USPS Rates Post Office Locator International Shipping Live Rate Updates

USPS Postage Calculator

Calculate exactly how many stamps you need and total postage costs. Get instant results with current USPS rates for any mail type and destination.

Live USPS Rates

Current postage rates updated in real-time from official USPS APIs

🇺🇸 Domestic Rates

Within the United States

First-Class Mail
Letters & Postcards
Priority Mail
1-3 Business Days
Priority Mail Express
Overnight to 2-Day
USPS Ground Advantage
2-5 Business Days

🌍 International Rates

To Canada & Worldwide

First-Class Int'l
Letters & Postcards
Priority Mail Int'l
6-10 Business Days
Priority Express Int'l
3-5 Business Days
Global Express
1-3 Business Days

About These Rates

📊
Real-Time Data

Rates are fetched directly from USPS APIs and updated every 5 minutes

📦
Standard Package

Rates shown for 1 lb package (6" × 4" × 2") from ZIP 90210 to 10001

💰
Retail Pricing

Standard retail rates before any commercial discounts