USPS Shipping Calculator for 2018

on Jan 18th, 2018 | in Etsy Tips, Tools | 14 Comments

The U.S. Postal Service updated shipping rates on January 21, 2018. This shipping calculator turns the near-indecipherable USPS rate charts into an easy to use tool for updating your shipping profiles and listings.

Take a look at my domestic shipping article if you need a crash course in weighing and packaging.

The rates shown below are commercial base pricing offered by Etsy, PayPal and other online vendors. Be sure to check the prices against your vendor to make sure they’re using commercial prices. Expect to pay more if you show up at the post office without postage. Pricing for flat rate items is included in the table below.

The USPS updated shipping rates on January 27nd, 2019. The rates shown below are no longer correct.

USPS Shipping Calculator

USPS Flat Rates

First Class Mail 0.50
Priority Mail Flat Rate Envelope 6.55
Priority Mail Legal Flat Rate Envelope 6.85
Priority Mail Padded Flat Rate Envelope 7.10
Priority Mail Small Flat Rate Box 7.05
Priority Mail Medium Flat Rate Box 12.85
Priority Mail Large Flat Rate Box 17.65
Priority Mail International Flat Rate Envelope
Priority Mail International Flat Rate Envelope
(Other countries)
Priority Mail International Small Flat Rate Box
Priority Mail International Small Flat Rate Box
(Other countries)
Priority Mail International Medium Flat Rate Box
Priority Mail International Medium Flat Rate Box
(Other countries)
Priority Mail International Large Flat Rate Box
Priority Mail International Large Flat Rate Box
(Other countries)
Express Mail Flat Rate Envelope 21.98

Disclaimer: This tool is intended to help Etsy sellers, but is unlikely to cover the needs of every shop and business owner. Please use the calculator as a tool in your tool box and not the sole source for your pricing decision. Shipping is complex and we hope to ease the pain a bit. Please keep in mind that extra services, insurance, etc. are not taken into account with this calculator nor does this tool account for all package types (over-sized, balloon, etc.).

Cover image by zach winter on Flickr.
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14 Responses

  1. Haley says:

    Will you be creating an updated calculator for 2019 USPS rates?

  2. Bree says:

    The new postage rates seem daunting without having your calculator to rely on! I really hope you do a 2019 calculator, though I’m sure it’d be more time consuming to put together! ❤️❤️❤️

  3. Lisa Braun says:

    Will you be having a shipping calculator for 2019? There will be lots of changes and I don’t know if I’ll survive without your awesome calculator!!

  4. Heather Nielsen says:

    Thanks so much for posting this! It’s a huge help and I’ve been looking all over for it! Why can’t Paypal post this in their help section?

  5. Cathy says:

    Thank you SOOO MUCH for putting this together again this year. I’ve used your charts for a couple of years now and it’s such a time saver!!

  6. Erin says:


    I posted a question on the other page which hasn’t posted for some reason. I’m curious to know how you’re able to get these rates. Anytime I try using USPS postage calculator, it has missing information.

    • Brittany says:

      Erin, you can see your comment and my reply to your question here. The data that is used for all the shipping calculators on this site come directly from the USPS. The likely reason you are getting different results from the USPS estimator and my calculator is that all my calculators are set up for Commercial Based Pricing while the USPS estimator is set up using Retail rates. Hope that clears things up for you.

      • Erin says:

        Thanks, Brittany. For some reason it wasn’t visible to me. I’m not certain I agree that the reason I couldn’t get prices was due to what you said. If anything, it should have shown me the non commercial prices.

        But that leads me to another question. How did you get those prices? Are you doing it through something like Stamps or Shipstation? Did you have to talk to a rep from USPS? Did whomever you decided to ship through give you a person who helped set that up for you?

        I’m hoping to ship in the future commercially, and your advice would be helpful and greatly appreciated. Thanks again!

        • Erin says:

          Another thing I’ve found, as mentioned, is the inconsistency of USPS with getting info. With your price calculator, you get the price for items under 16 ounces. With their site, you don’t.

          This could be chalked up to you having a commercial account, but I just talked to someone at a college who operates the post office there like a regular post office, and he was unable to show anything over 13 ounces. So, I’m left confused as to what to believe is the right option for shipping.

  7. Gale says:

    I’ve come to depend on your updates–so much easier than USPS or other sites. Thank you.

  8. Thank you so much for putting this tool together! The Post Office’s site isn’t half as clear. 🙂

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