Understanding Postage Rates and Stamp Sizes: A Complete Overview

Postage stamps may seem simple but serve many purposes beyond just mailing. They influence mailing costs and specify sizes for postcards and letters. This guide explores USPS postage rates and stamp sizes, providing clarity on costs and options.

First-Class Mail Rates
USPS’s First-Class Mail allows quick delivery of letters, postcards, and small parcels, usually within 1 to 5 business days. It offers up to $5,000 insurance for damaged or lost items. Rates depend on weight, shape, and size, with a flat rate for mail under 3.5 oz and priority services for heavier packages.

Postcard and envelope postage rates vary based on dimensions and shape. Standard envelopes with rectangular shapes start at $0.63, while oversized or uniquely shaped envelopes may start at $1.03. Postcard stamps with standard sizes begin at $0.48; larger postcards cost more, ranging from $0.55 to $1.16. The maximum weight limit for first-class mail is 3.5 oz for letters and 13 oz for larger envelopes, with rates subject to change by USPS.

Postage Sizes and Pricing
USPS offers different postcard sizes and corresponding rates. Standard postcards range from 3x4 inches to 4.25x6 inches, costing about $0.40. Larger postcards, called jumbo postcards, range from 5x7 inches to 6.5x9.5 inches, starting at $0.55. Extra-large postcards, measuring around 8.5x11 inches, fall under flat rates, which can cost from $0.58 to $1.16.

Stamp Collection Tips
Enthusiasts often collect stamps for hobby or investment purposes. Essential tools include magnifying glasses, tongs, watermark detectors, and perforation gauges to analyze authenticity and condition. Carefully removing stamps from envelopes involves soaking in water and drying properly to preserve their integrity. Stamps can be stored in albums, hinges, mounts, or protective envelopes like glassine strips to prevent damage.