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Amazon US · ranked by real cost per unit

Stop paying for the packaging.

We compute the real price per unit across every category you rebuy — so you compare true value, not 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.

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

Prices checked Aug 2, 2026

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Hottest right now

HP Printer Paper | 8.5 x 11 | Copy & Print 20 lb | 10 Ream…

cost / sheet$0.012
you pay$57.98

📄 Office & copy paper · 🔥 Popular · ranked by real cost per unit

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HP Printer Paper | 8.5 x 11 | Copy & Print 20 lb | 10 Ream…

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Fragrance$ / ml · 1719 trackedSkincare$ / ml · 1610 trackedHair & body$ / fl oz · 932 trackedMakeup$ / ml · 268 trackedBody care$ / fl oz · 234 trackedNail polish$ / ml · 186 trackedBatteries$ / battery · 165 trackedCoffee pods (K-Cups)$ / pod · 162 trackedDog treats$ / lb · 89 trackedShave & beard$ / fl oz · 81 trackedTrash bags$ / bag · 81 trackedProtein bars$ / bar · 76 trackedDeodorant$ / oz · 67 trackedLaundry detergent$ / load · 55 trackedBaby care$ / diaper · 55 trackedToothpaste$ / oz · 48 trackedPaper plates$ / plate · 48 trackedDish soap$ / fl oz · 48 trackedFood storage bags$ / bag · 46 trackedPain Relief$ / tablet · 46 trackedToilet paper$ / 100 sheets · 46 trackedPrinter ink & toner$ / page · 46 trackedOffice & copy paper$ / sheet · 45 trackedMotor oil & fluids$ / quart · 41 trackedShaving & grooming$ / cartridge · 41 trackedPet food$ / lb · 40 trackedCat litter$ / lb · 38 trackedDishwasher pods$ / pod · 30 trackedPaper towels$ / 100 sheets · 23 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

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Battery Cost Per Battery: Why Bulk AA Beats a 9V Every TimeThe Cheapest Perfume by Cost Per ml — Best Value, RankedDeodorant Cost Per Ounce: The Drugstore-vs-Natural GapLongest-Lasting Perfume: Concentration, Cost Per ml, and Cost Per WearMakeup Cost Per ml: Where the Money Actually GoesNail Polish Cost Per ml — and How Many Manicures a Bottle Really BuysShave & Beard Cost Per fl oz: A 38x Spread Hiding in Plain SightBest 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 Costs

🔬 Research & compare

All studies →
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
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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