I ran a price comparison of over 200 food items at Costco and Amazon Subscribe & Save. I was very surprised to find Costco prices were lower by an average of 12% on over 170 items! I thought it would be a much closer race! COSTCO WAS THE CLEAR WINNER. See my favorite Costco deals. But, while I feel justified in keeping my Costco membership, I did find some items that are cheaper (or smarter) buys on Amazon.

Don’t forget, Costco charges a $55 annual membership, so their prices should be lower. Amazon Subscribe & Save items ship for free to anyone, even those without Amazon Prime memberships.

Related: Learn How to Shop Costco without a Membership

IMPORTANT: The only way I’m able to beat Costco prices is by subscribing to 5 or more items each month. By agreeing to automatic reordering on 5 items, I’m saving 15% on Amazon prices. There is no obligation to continuing these subscriptions. You can cancel with one click as soon as the item ships. Keep in mind, Amazon pricing changes frequently. Variance in pricing is inevitable. Just remember to always factor in unit cost.

 

1. I’m saving a penny by buying Clif Kid ZBars on Amazon with Subscribe & Save.

Clif Kid ZBars sell for $0.49 each at Costco. Save $0.01 per bar by buying with Amazon Subscribe & Save. Make sure to subscribe to at least 5 items in the same month for maximum savings!

Costco price: $0.49 per bar
Amazon price: $0.48 per bar

Buy Clif Kid ZBars, chocolate chip (18 bars) $8.70 at Amazon Subscribe & Save WITH 5 OR MORE SUBSCRIPTIONS IN ONE MONTH

 

2. I’m saving space in my Costco cart by buying grown-up Clif Bars (same price) on Amazon with Subscribe & Save.

I’m saving myself the trip to Costco by buying Clif Bars with Amazon Subscribe & Save. When I subscribe to 5 or more items in one month, I pay only $0.84 per bar, only one cent more than the Costco price.

Costco price: $0.83 per bar
Amazon price: $0.84 per bar

Buy Clif Energy Bars, Chocolate Brownie (12 bars) for $10.10 at Amazon Subscribe & Save WITH 5 OR MORE SUBSCRIPTIONS IN ONE MONTH

 

3. I’m stocking up my office with Monster Energy drinks (5 cents less) on Amazon with Subscribe & Save.

Costco and Amazon sell the exact same sixteen-ounce Monster Energy drinks, and I save a couple bucks buying online!

Costco price: $1.38 per can
Amazon price: $1.33 per can

Buy Monster Energy Drink (20 16oz cans) $26.52 at Amazon Subscribe & Save, WITH 5 OR MORE SUBSCRIPTIONS IN ONE MONTH

4. I’m continuing to buy Huggies Wipes (10% cheaper) on Amazon with Subscribe & Save.

Costco sells 1160 wipes for $24.99. Amazon sells 624 wipes for as low as $12.23. Costco’s price per wipe: 2.2 cents. Amazon’s price is 2.0 cents. That’s a 10% savings!

By subscribing to receive 5 or more items in a single month, I save 15% and delivery is always free! I can cancel as soon as I receive shipment notification or anytime thereafter.

Costco price: 2.2 cents per wipe
Amazon price: 2.0 cents per wipe

Buy Huggies Natural Wipes Refill (624 ct) $12.23 at Amazon Subscribe & Save WITH 5 OR MORE SUBSCRIPTIONS IN ONE MONTH

 

 

5. I’m never running out of Huggies Diapers again (and I’m saving money) with Amazon Subscribe & Save.

Costco and Amazon sell Huggies diapers in all sizes—I’m using size 3 as the example. Costco sells 198 size 3 diapers for $42.99, or $0.22 per diaper. Amazon sells 174 size 3 diapers for $36.79, or $0.21 per diaper. Plus, Amazon has more frequent available coupons to ‘stack’ with the already low Subscribe & Save price!

Costco price: $0.22 per diaper
Amazon price: $0.21 per diaper

Buy Huggies Little Movers (174ct size 3) $36.79 at Amazon Subscribe & Save WITH 5 OR MORE SUBSCRIPTIONS IN ONE MONTH

 

6. I’m loving this new discovery: Chicken of the Sea Tuna is $0.16/oz at both Costco and Amazon Subscribe & Save.

Costco sells a twelve-pack of seven-ounce cans for $12.99. Amazon sells a twenty-four pack of five-ounce cans for $19.79 when you subscribe to receive at least five items. Both deals work out to be the same price—$0.16 per ounce.

Costco price: $0.16 per ounce
Amazon price: $0.16 per ounce

Buy Chicken of the Sea Chunk Light Tuna (24 5oz cans) $19.79 at Amazon Subscribe & Save WITH 5 OR MORE SUBSCRIPTIONS IN ONE MONTH

Related: 19 Unbeatable Deals You Can Only Find at Costco

 

7. I’m paying a 2-cent premium for convenience and having Kraft Macaroni & Cheese delivered by Amazon Subscribe & Save.

Costco sells 18 boxes of Kraft Mac and Cheese for $14.29, or $0.81 per box. Amazon sells 35 boxes for $29.15 or $0.83 per box. For $0.02 a box, I’m buying on Amazon and having it delivered for free!

Costco price: $0.81 per box
Amazon price: $0.83 per box

Buy Kraft Macaroni & Cheese (35 boxes) for $29.15 at Amazon Subscribe & Save WITH 5 OR MORE SUBSCRIPTIONS IN ONE MONTH

8. I thought printer ink was a bargain at Costco, but I found mine cheaper at Amazon.

Costco packages most of their small items in oversized cardboard packaging to reduce theft. Don’t be fooled into thinking you’re getting a greater value based on size. I’d always heard Costco was a good place to buy ink, but I did a quick price compare on black ink for my HP printer and found the Amazon price was 15% less for the exact same product (sans giant cardboard packaging).

Costco price: $34.99 per cartridge
Amazon price: $33.78 per cartridge

Buy HP 901XL Black Ink Cartdridges $33.78 at Amazon

 

9. For my office, I’m subscribing to 2 boxes per month of San Francisco Bay K-Cups from Amazon Subscribe & Save.

At Costco, San Francisco Bay single serve cups cost $0.30 apiece. I pay $0.31 per cup to have the K-Cups delivered to my office with Amazon Subscribe & Save.

Costco price: $0.30 per cup
Amazon price: $0.31 per cup

Buy San Francisco Bay OneCup (80 ct) $23.37 at Amazon Subscribe & Save WITH 5 OR MORE SUBSCRIPTIONS IN ONE MONTH

Related: 12 Costco Secrets You’ve Never Heard Before

 

10. I’m practically getting paid to never lug dog food around Costco again.

I switched from Kirkland Signature Nature’s Domain dry dog food to Diamond Naturals dry dog food at Amazon after learning that Diamond Naturals manufacturers Kirkland Signature dog foods. Both brands are well-reviewed, above-average, and cost-effective dog foods. I’ve been happy with the switch, and I’m saving 15% while avoiding the hassle of a flat bed Costco cart with a forty-pound bag of dog food!

Costco price: $0.97 per pound
Amazon price: $0.82 per pound

Buy Diamond Naturals Dry Dog Food, beef flavor (40lb) $32.65 at Amazon