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Cheapest trash bags

As of July 22, 2026, the lowest price for trash bags on Amazon is $0.10/bag — the median is $0.24/bag across 62 tracked products. Prices re-checked continuously.

Good ≤ $0.16Median $0.24Min $0.10

🧮 Got a price? Check if it’s good →

Trash bags ranked by the real cost per bag — the unit that actually matters, not the size of the pack. We do the math so you compare true value.

💚 Best value right now$0.10 / bag· ReliSee it →

62 live deals · cheapest per bag first

+134°
Amazon Basics Trash Bags
🗑️Trash bags

Amazon Basics Trash Bags

$0.14Cost / bag
Price checked Jul 21 · confirm on Amazon🔥 Popular
pack price$28.44
subscribe & save$0.13−10%
💚 22% below median $/bag
See on Amazon

What changed

From our own price checks — not sticker “was” prices.

Price tiers by cost per bag

TierCost per bagExample
Budget$0.10 – $0.16Reli. Tall Kitchen Drawstring Trash Bags 13…
Mid-range$0.16 – $0.34Amazon Basics 13 Gallon Tall Kitchen Drawstring…
Premium$0.34 – $0.70Hefty Blue Trash Bags, Blue, 30 Gallon, 36 Count
Reference & cost breakdowns
Compare brands
Cost per bag by brand

See our Best of 2026 picks →Cost-Per-Unit IndexUnit price calculator

How to buy trash bags for less

Trash bags are sold on brand and “strength” claims, but the honest number is cost per bag — and you must match gallon size first, because a 13-gallon and a 30-gallon bag aren’t the same product.

  • Compare cost per bag within the same gallon size. A 45-count box that’s cheaper than a 90-count is usually a smaller-gallon or thinner bag — check the gallons and mil thickness.
  • Buy the biggest count box for your size (kitchen 13-gal, tall 30-gal, contractor 42-gal). Per-bag cost falls steeply with count — the main lever.
  • Store brands (Amazon Basics, Great Value) run ~$0.08–0.15/bag vs $0.20–0.35 for name brands at the same gallon and thickness.
  • Don’t overpay for “scented” or “ForceFlex” on everyday kitchen bags — mil thickness (durability) is what matters; match it, then take the lowest cost per bag.

How we rank trash bags

We take each listing’s last-seen price and divide it by the bag — the unit that actually matters here — so a big pack and a small one line up on the same scale. The cheapest per bag wins, not the biggest label or the lowest sticker price.

What we check

Cheapest isn’t always best value. For trash bags we surface the trust signal that separates the real thing from filler: $/bag, gallon matched.

Frequently asked questions

How is the cheapest trash bags calculated?
We take each listing's last-seen price and divide it by the bag — the unit that actually matters here — so a big pack and a small one line up on the same scale. The cheapest cost per bag ranks first, not the biggest label or the lowest sticker price.
How much do trash bags cost per month?
At 4 kitchen bags a week, the median price we track works out to about $4 a month — $48 a year. Buying at the cheapest price we currently track instead costs $2 a month, saving roughly $27 over a year.
What is the cheapest trash bags right now?
The best value right now is Reli at $0.10 per bag — the lowest real cost per bag of the 62 live deals we track here.
What does cost per bag mean?
Cost per bag is a listing's price divided by its bag, so two products in different pack sizes compare on the same scale instead of by sticker price. It is the single number we rank trash bags by.