USPS 2020 First Class Shipping Rates | ShippingEasy

2020 USPS First Class Shipping Rates Changes

By Rob Zaleski
Jan 28, 2020
2019 First Class shipping rates

One of the most significant changes from 2019’s USPS shipping rates changes were an overhaul of how First Class shipping rates were calculated. What has typically been the most economical means of shipping packages under 1 lb. saw an average cost increase of 11.9%. This is predominantly due to transitioning from a flat cost regardless of domestic destination to Zone-based tiers, the way Priority Mail has been calculated.

We wrote a breakdown of how this played out in 2019, and exactly what it meant for online sellers who ship using First-Class Package Service. In this article, we break down all the 2020 First-Class shipping rates using Commercial Plus Pricing, which sellers can get through a shipping software like ShippingEasy.

How are the 2020 First-Class Shipping Rates Calculated?

First-Class Package Service from USPS is (still) the most cost-effective shipping method for packages weighing less than 1 lb. You can use your own boxes or padded envelopes. Before the 2019 overhaul, all you needed to know was the weight of your package, and you were able to ship anywhere domestically at a relatively inexpensive cost, particularly compared to other methods.

With the 2019 changes to First Class shipping rates, destination was taken into account, and it changed the costs in a big way. We’ve updated our charts to show you the 2020 First-Class shipping rates based on the most current model that USPS uses.

2020 USPS
First Class Pkg
(weight not over)
1 & 2
Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9
1 oz$2.74$2.76$2.78$2.84$2.93$3.05$3.18$3.18
2 oz$2.74$2.76$2.78$2.84$2.93$3.05$3.18$3.18
3 oz$2.74$2.76$2.78$2.84$2.93$3.05$3.18$3.18
4 oz$2.74$2.76$2.78$2.84$2.93$3.05$3.18$3.18
5 oz$3.21$3.23$3.25$3.31$3.39$3.52$3.67$3.67
6 oz$3.21$3.23$3.25$3.31$3.39$3.52$3.67$3.67
7 oz$3.21$3.23$3.25$3.31$3.39$3.52$3.67$3.67
8 oz$3.21$3.23$3.25$3.31$3.39$3.52$3.67$3.67
9 oz$3.93$3.97$4.00$4.08$4.18$4.32$4.46$4.46
10 oz$3.93$3.97$4.00$4.08$4.18$4.32$4.46$4.46
11 oz$3.93$3.97$4.00$4.08$4.18$4.32$4.46$4.46
12 oz$3.93$3.97$4.00$4.08$4.18$4.32$4.46$4.46
13 oz$5.04$5.08$5.12$5.27$5.40$5.54$5.70$5.70
14 oz$5.04$5.08$5.12$5.27$5.40$5.54$5.70$5.70
15 oz$5.04$5.08$5.12$5.27$5.40$5.54$5.70$5.70
15.999 oz$5.04$5.08$5.12$5.27$5.40$5.54$5.70$5.70

Let’s take a look at a couple specific examples to show how much 2020 First-Class shipping rates have increased over last year’s rates. Luckily, they’re not excessive for the most part, and particularly not compared to the change last year:


  • 2019 First Class Package
    • 6 oz. package, Houston to Miami = $3.28
  • 2020 First Class Package
    • 6 oz. package, Houston to Miami (Zone 5) = $3.31 (+ $0.03)
  • 2019 First Class Package
    • 11 oz. package, New York to Los Angeles = $4.33
  • 2020 First Class Package
    • 11 oz. package, New York to Los Angeles (Zone 8) = $4.46 (+ $0.13)

If you are an online seller with a predominantly local customer base, you may not notice the changes to your shipping costs significantly. However, those who ship across the country and/or have packages close to the 15.999 oz. weight limit on a regular basis will need to budget in slightly higher shipping costs for 2020, which could represent a burden.

Need to know: How to ship liquids with each carrier.

What about First Class shipping rates for international?

First-class shipping rates are increasing for international shipping as well, but are maintaining the same structure as in the couple years past. This structure maintains the same cost up through 8 oz., then stays the same for 12 – 32 oz., then 36 – 40oz, and finally 52 up to 64 oz. The shipping costs do represent a significant jump over last year which will certainly impact smaller vendors who do a substantial amount of shipping light packages overseas.

This chart shows all the 2019 changes coming to First Class shipping rates for international shipments.

First Class
(wt. not over)
1 oz$11.64$11.88$16.39$14.49$13.78$14.49$14.49$14.49$14.49
2 oz$11.64$11.88$16.39$14.49$13.78$14.49$14.49$14.49$14.49
3 oz$11.64$11.88$16.39$14.49$13.78$14.49$14.49$14.49$14.49
4 oz$11.64$11.88$16.39$14.49$13.78$14.49$14.49$14.49$14.49
5 oz$11.64$11.88$16.39$14.49$13.78$14.49$14.49$14.49$14.49
6 oz$11.64$11.88$16.39$14.49$13.78$14.49$14.49$14.49$14.49
7 oz$11.64$11.88$16.39$14.49$13.78$14.49$14.49$14.49$14.49
8 oz$11.64$11.88$16.39$14.49$13.78$14.49$14.49$14.49$14.49
12 oz$19.71$20.66$26.36$24.23$23.28$24.23$24.23$24.23$24.23
16 oz$19.71$20.66$26.36$24.23$23.28$24.23$24.23$24.23$24.23
20 oz$19.71$20.66$26.36$24.23$23.28$24.23$24.23$24.23$24.23
24 oz$19.71$20.66$26.36$24.23$23.28$24.23$24.23$24.23$24.23
28 oz$19.71$20.66$26.36$24.23$23.28$24.23$24.23$24.23$24.23
32 oz$19.71$20.66$26.36$24.23$23.28$24.23$24.23$24.23$24.23
36 oz$30.40$31.59$40.85$38.48$37.05$38.48$38.48$38.48$38.48
40 oz$30.40$31.59$40.85$38.48$37.05$38.48$38.48$38.48$38.48
44 oz$30.40$31.59$40.85$38.48$37.05$38.48$38.48$38.48$38.48
48 oz$30.40$31.59$40.85$38.48$37.05$38.48$38.48$38.48$38.48
52 oz$47.74$49.16$63.89$60.09$58.66$60.09$60.09$60.09$60.09
56 oz$47.74$49.16$63.89$60.09$58.66$60.09$60.09$60.09$60.09
60 oz$47.74$49.16$63.89$60.09$58.66$60.09$60.09$60.09$60.09
64 oz$47.74$49.16$63.89$60.09$58.66$60.09$60.09$60.09$60.09

Unlike last year’s changes, there are zero instances where the rates are staying the same from year to year. This is certainly something that merchants who ship internationally will have to adjust for.

What does this mean for e-commerce shippers in 2020?

Even with these increases, First-Class Package Service is still going to be the most cost-effective means of shipping lighter packages under 1 lb. Online sellers are going to have to make adjustments, particularly if you currently offer free shipping and just absorb the cost.

The 2020 USPS rate changes took effect on January 26, 2020. If you haven’t read our complete wrap-up of the major changes coming to USPS shipping rates in 2020, click the button below to learn everything you need to know about changes coming to Priority Mail, overall rate change highlights, and a refresher on Dimensional Weight (DIM weight) structures.

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Rob Zaleski

Content Marketing Manager at ShippingEasy
I'm a digital content and social media nerd with a passion for telling stories, helping connect people, and finding joy in the details.

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