Lost parcel claim calculator: how much can I claim?

Here's the part most people don't expect: USPS, UPS and FedEx only include $100 of default liability coverage per package — regardless of what was actually inside — unless the shipper paid for a higher "declared value" before it went missing. That can't be added after the fact. See your real maximum claim below.

This has to be purchased from the carrier before shipping — it can't be added after something has already gone missing.
This affects who needs to submit the paperwork, not the amount below. For UPS specifically, only the shipper can file a claim, not the recipient, unless the shipper has authorized them. USPS and FedEx have their own similar rules — check with the carrier before you start.