The most affordable option for lightweight packages and letters under 13 oz. Fast 1-5 day delivery with tracking included.
No credit card required • No monthly fees • No contracts
First-Class Mail is USPS's most affordable service for lightweight items. If your package weighs less than 13 oz (under 1 lb), this is almost always the cheapest shipping option.
Lightweight items under 13 oz (0.81 lbs) such as small accessories, jewelry, documents, stickers, patches, sample products, and marketing materials. The cheapest option for small, light packages.
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Calculate Your RatePerfect for lightweight items. Anything heavier should use Ground Advantage.
Fast delivery comparable to Priority Mail for many destinations.
Full USPS Tracking on all First-Class Package shipments.
Price based on weight only - no zone calculations needed.
Use any packaging - boxes, poly mailers, or padded envelopes.
Drop off at any USPS location, blue collection box, or schedule pickup.
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First-Class Mail packages must weigh 13 oz (0.81 lbs) or less. For heavier items, USPS Ground Advantage is usually the best affordable option.
Yes! First-Class Package Service includes USPS Tracking at no extra cost. Letters and postcards don't include tracking.
First-Class Mail doesn't include free insurance like Priority Mail. You can purchase additional coverage for valuable items.
Most First-Class Mail delivers in 1-5 business days, similar to Priority Mail for many destinations. It's not guaranteed like Priority Mail Express.
Yes! First-Class Package International Service is available for lightweight international shipments. It's the most affordable option for small international orders.
Use First-Class for items under 13 oz - it's cheaper. For items over 13 oz, use Ground Advantage for the best rates.
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