Shipping from the U.S. to China via USPS (United States Postal Service) offers several options, depending on the weight, size of the package, and delivery speed. Here are the main services available:

1. First-Class Package International Service

• For: Small, lightweight packages (up to 4 lbs or 1.8 kg).
• Cost: Starts around $15–$25 USD, depending on the weight and destination.
• Delivery Time: Typically 7–21 business days, depending on the location.
• Tracking: Limited tracking, not always available to the destination.

2. Priority Mail International

• For: Packages up to 70 lbs (31.75 kg).
• Cost: Starts around $40–$55 USD for smaller packages, but it can increase with weight.
• Delivery Time: Typically 6–10 business days.
• Tracking: Full tracking available for most destinations.

3. Priority Mail Express International

• For: Fast and reliable shipping.
• Cost: Starts around $70–$90 USD, depending on weight and size.
• Delivery Time: Typically 3–5 business days.
• Tracking: Full tracking and delivery guarantee.

4. Global Express Guaranteed (GXG)

• For: High-priority, fast delivery, with tracking and delivery guarantee.
• Cost: Starts at $100 USD and up, depending on weight.
• Delivery Time: 1–3 business days.
• Tracking: Full tracking, including delivery confirmation.

5. USPS Retail Ground (if available)

• For: Heavier packages (may not be available for all destinations).
• Cost: Generally more economical for larger parcels, but rates can vary.
• Delivery Time: Takes longer than Priority Mail, typically 10+ days.

How to Get Exact Pricing

• For precise rates, you can visit the USPS website and use their Postage Price Calculator, entering the specific details of your package.
• Alternatively, you can visit a local USPS office to get an exact quote and find the best option for your shipment.

Considerations:

• Customs: All international shipments are subject to customs regulations and may be delayed or incur additional fees.
• Tracking: USPS provides limited tracking for some services (e.g., First-Class), while others (Priority Mail and Express) offer full tracking.

If you need any help with specifics, feel free to ask!