Postage Price Calculator

Postage Price Calculator

Estimate USPS postage for your mail or package. Pick a service, enter the weight, and get an instant estimate.

16 oz = 1 lb
Estimated postage
Estimate based on USPS published rates as of October 18, 2026 — confirm exact price at usps.com. Rates vary with weight, distance, shape and season.

USPS retail starting rates (at the Post Office)

ServiceStarts atDelivery
USPS Ground Advantage$8.402–5 days
Priority Mail$11.501–3 days
Priority Mail Express$37.051–2 days
First-Class Mail letter$0.821–5 days
Postcard$0.651–5 days
Media Mail$4.392–8 days

How to use

  1. Choose a mail service from the dropdown.
  2. Enter the weight in ounces (16 oz = 1 lb).
  3. Optionally add the origin and destination ZIP codes.
  4. Click Calculate Postage to see your estimate.

Frequently Asked Questions

How accurate is this estimate?

It is an estimate from USPS published starting rates as of October 18, 2026. Exact postage depends on weight, distance (zones), package shape and current surcharges — always confirm the exact price at usps.com or the Post Office.

Are these rates current?

Rates are from USPS published retail starting rates as of October 18, 2026. Note that a temporary holiday peak price increase applies October 4, 2026 – January 17, 2027 on Priority Mail Express, Priority Mail and Ground Advantage.

What about First-Class package rates?

First-Class Mail letter and postcard rates are shown. Package pricing varies by weight and zone — Ground Advantage is the current USPS package service for lightweight parcels.

Why are from/to ZIP codes optional?

Our estimate uses national starting rates, so ZIP codes are not required. On usps.com, entering both ZIP codes lets USPS calculate the exact zone-based price.