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Amazon US · ranked by real cost per unit

Stop paying for the packaging.

We compute the real price per unit — per litre, per page, per diaper, per ml — across every category you rebuy, so you compare true value instead of the sticker price.

OutletPicks is an independent US Amazon price-comparison site that ranks everyday products by their real cost per unit — per ml, per fl oz, per page, per diaper, per quart — from prices re-checked on a rolling cycle, so a bulk pack and a travel size line up on the same scale.

412+ brands across every category · ranked by real cost per unit

Prices checked Jul 24, 2026

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Unit price calculator Biggest price drops
Hottest right now

Duracell Coppertop AAA Batteries with Power Boost Ingredients

cost / battery$1.21
you pay$9.65

🔋 Batteries · 🔥 Popular · ranked by real cost per unit

See the offer
Duracell Coppertop AAA Batteries with Power Boost Ingredients

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Fragrance$ / ml · 1538 trackedSkincare$ / ml · 1466 trackedHair & body$ / fl oz · 829 trackedBody care$ / fl oz · 187 trackedMakeup$ / ml · 186 trackedCoffee pods (K-Cups)$ / pod · 168 trackedNail polish$ / ml · 142 trackedBatteries$ / battery · 97 trackedDog treats$ / lb · 90 trackedProtein bars$ / bar · 78 trackedShave & beard$ / fl oz · 74 trackedDeodorant$ / oz · 70 trackedTrash bags$ / bag · 62 trackedBaby care$ / diaper · 56 trackedDish soap$ / fl oz · 51 trackedToothpaste$ / oz · 49 trackedMotor oil & fluids$ / quart · 46 trackedPrinter ink & toner$ / page · 46 trackedLaundry detergent$ / load · 44 trackedPet food$ / lb · 41 trackedShaving & grooming$ / cartridge · 41 trackedCat litter$ / lb · 38 trackedToilet paper$ / 100 sheets · 37 trackedPaper plates$ / plate · 35 trackedDishwasher pods$ / pod · 31 trackedFood storage bags$ / bag · 30 trackedOffice & copy paper$ / sheet · 29 trackedPaper towels$ / 100 sheets · 23 trackedBath & soak$ / fl oz · 12 tracked

📉 Biggest price drops right now

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Tracked since we first listed them — these fell the most. Each card shows when we last checked it.

📘 Buying guides

All guides →
Best Diapers for Newborns (2026): What Actually Matters, and the Cheapest That DeliverCheapest Dog Food Per Pound: Every Brand Ranked (2026)Diaper Cost Comparison by Size: What Each Size Really Costs Per DiaperHow Long Does a Propane Tank Last? Grill Hours by BTU, and How to CheckHow Often to Change Your Furnace / HVAC Air Filter — and What a Year CostsHow Long Does a Bar of Soap Last? Per Bar, and How to Make It Last LongerBar Soap vs Body Wash: Cheaper, Cleaner, Better for Skin?Dishwasher Pods vs Powder vs Gel: Which Cleans Best, and Which Is CheapestHow Long Does a Tube of Toothpaste Last? By Size, Per Person, and Per CentHow Long Does Body Wash Last? Per Bottle in Use, and On the ShelfHow Long Does Deodorant Last? On Your Skin, In the Stick, and On the ShelfHow Long Does Sunscreen Last? Shelf Life, After Opening, and Per Bottle

🔬 Research & compare

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Is it worth it?La Mer, Creed, Olaplex — by real cost per ml Beauty dupesThe cheaper option, by cost per ml Brand vs brandWhich brand is cheaper per unit? Real Cost-Per-Unit IndexWhat things really cost per unit
No filters5596 deals match

As an Amazon Associate I earn from qualifying purchases. Prices unchanged for you. Details

+235°
Hammermill Printer Paper
📄Office & copy paper

Hammermill Printer Paper

$0.014Cost / sheet
Price checked Jul 24 · confirm on Amazon🔥 Popular
pack price$55.99$67.99↓18%
subscribe & save$0.013−5%
See on Amazon
+228°
Hammermill Printer Paper
📄Office & copy paper

Hammermill Printer Paper

$0.012Cost / sheet
Price checked Jul 24 · confirm on Amazon🔥 Popular
pack price$59.97$65.71↓9%
subscribe & save$0.011−5%
See on Amazon
+217°
Hammermill Printer Paper
📄Office & copy paper

Hammermill Printer Paper

$0.018Cost / sheet
Price checked Jul 24 · confirm on Amazon🔥 Popular
pack price$27.09$30.09↓10%
subscribe & save$0.017−5%
See on Amazon
+175°
Premium Roast Decaf Coffee
☕Coffee pods (K-Cups)

Premium Roast Decaf Coffee

$0.40Cost / pod
Price checked Jul 24 · confirm on Amazon🔥 Popular
pack price$38.79$48.39↓20%
subscribe & save$0.38−5%
See on Amazon
+166°
Pampers Pure Baby Diapers
🍼Baby care

Pampers Pure Baby Diapers

$0.49Cost / diaper
Price checked Jul 24 · confirm on Amazon🔥 Popular
pack price$64.88$69.88↓7%
subscribe & save$0.47−5%
See on Amazon
+150°
Huggies Size 5 Diapers
🍼Baby care

Huggies Size 5 Diapers

$0.39Cost / diaper
Price checked Jul 24 · confirm on Amazon🔥 Popular
pack price$51.99$56.99↓9%
subscribe & save$0.35−10%
See on Amazon
+145°
Huggies Size 5 Diapers
🍼Baby care

Huggies Size 5 Diapers

$0.30Cost / diaper
Price checked Jul 24 · confirm on Amazon🔥 Popular
pack price$24.99
subscribe & save$0.28−5%
See on Amazon
Showing 156 of 5596

Cost per unit, not just price

We do the math: divide by litres, millilitres, diapers, or pages.

Real prices, not MSRP

Last-seen prices from the retailer — no inflated “was” prices.

Transparent, not opinion

Rankings are pure arithmetic from real prices and pack sizes. The methodology is public.

The cost-per-unit ranking is arithmetic, not opinion: we take each listing’s last-seen price and divide it by the unit that matters for its category — litres, millilitres, diapers, pages, cartridges — so two products in different pack sizes line up on the same scale. That single figure — what the thing actually costs per unit — is how every grid and category ranking is sorted. We do not invent prices; each row reflects the data we recorded from the retailer.

How it works

Three steps from a shelf full of prices to the one that's actually cheapest per unit.

  1. 01

    We pull the real price

    Every listing comes in with its true US Amazon price — pack size, count, and volume included, not just the number on the box.

    Browse categories
  2. 02

    We divide by the unit that matters

    Price ÷ the unit for its category — per quart, ml, diaper, page, kg, or cartridge — then rank cheapest-per-unit first. Bulk tricks and big-bottle markups have nowhere to hide.

    See today's deals
  3. 03

    Continuously re-checked, never paid for

    We re-check every price on a rolling cycle — and each deal shows the date we last checked it — so the ranking stays honest. Links are affiliate — we earn a small cut — but no brand can pay to rank higher.

    Read the guides

Why we exist

Sticker price hides the real cost. Cost per unit surfaces it.

We compute what you actually pay per unit that matters — per quart, per ml, per diaper, per page — across every category you rebuy, with the pack size and the real unit price on the same row. Rankings are arithmetic, not opinion — the cheapest real cost per unit wins. No paid placement.

How it works Read the manifesto