Dealophant, the real cost per unit on every Amazon product
Dealophant is a free price-per-unit comparison search engine for Amazon. It ranks listings by price per unit, such as per ounce, per fluid ounce, per 100 sheets, per pod, or per battery. Prices come from Amazon search results and can be up to 15 minutes old.
In season
Thanksgiving hosting: Aluminum Foil · Paper Plates · Plastic Cups · Baking Flour · Sugar · Stuffing Mix · Coffee K-Cups
Holiday shopping: Wrapping Paper · Gift Bags · Gift Tags · Christmas Cards · Candy Canes · AA Batteries · AAA Batteries · Hot Cocoa K-Cups · Pokémon Booster Packs · Christmas Lights · Transparent Tape
Winter warm-up: Wool Socks · Toe Warmers · Fleece-Lined Leggings · Kids Socks · Windshield Washer Fluid · Windshield Wiper Blades · Ice Melt · Antifreeze & Coolant · Furnace & HVAC Air Filters · Heated Jackets · Heated Vests · Heated Pants · Heated Gloves · Heated Socks
Holiday baking: Chocolate Chips · Sprinkles
Hunting season: Hand Warmers · Scent Control Spray · Trail Camera SD Cards · Fire Starters
Search a category
Compare prices across 103 everyday categories on dedicated landing pages:
- Toilet paper · Paper towels · Trash bags · Laundry detergent · Dish soap
- K-Cups · Nespresso pods · Energy drinks · Bottled water · Canned soda
- Diapers · Baby wipes · Baby formula
- Protein powder · Protein bars · Vitamins
- Dog food · Cat food · Cat litter · Dog treats
- Batteries · Light bulbs · Aluminum foil · Plastic wrap
- See all categories
How it works
Each search picks one unit (ounces, fluid ounces, or a count such as pods or 100 sheets) and ranks the listings that can be measured in that unit by price per unit. Listings that cannot be measured in it are shown separately under "Other formats".
Read the full methodology · Machine-readable methodology (llms.txt) · Black Friday deals, checked against 90-day prices
Frequently asked questions
- What is Dealophant?
- Dealophant is a free price-per-unit comparison search engine for Amazon products. It reads Amazon search results and ranks listings by price per unit, such as per ounce, per fluid ounce, per 100 sheets, per pod, or per battery. The same search can be up to 15 minutes old.
- Is Dealophant free?
- Yes. Dealophant is free to use. The operator earns a commission on outbound Amazon purchases via the Amazon Associates program, but commissions don't affect ranking, listings are ordered strictly by computed price per unit.
- Does Dealophant work for non-Amazon stores?
- No. Dealophant only indexes Amazon US listings. It is not affiliated with Amazon.com, Inc.
- How current are the prices?
- Results come from Amazon's search. The same search is cached for 15 minutes, so a price can be up to 15 minutes old, and Amazon can change it again before you click. Confirm the price on Amazon before buying.
- Why segregate cross-unit listings?
- A 30-serving tub and a 16-ounce tub are not the same comparison, because serving size is not standard across brands. Each search picks one unit. Listings that cannot be measured in that unit are shown under Other formats and are not ranked.