What Size Garbage Bag Do I Need? A Complete Sizing Guide

Garbage bag are a common item in our daily lives, but choosing the wrong size is frustrating. Bags that are too small can easily tear and spill garbage everywhere. Bags that are too large waste money and plastic. But how do you find What Size Garbage Bag Do I Need?

The perfect garbage bag fits your bin’s height, width, and shape while leaving 2-3 inches for tying. Measure your trash can’s dimensions and match them to standard bag sizes (like 13 gal for kitchen bins) to avoid leaks, tears, or unnecessary plastic waste.

This guide will show you how to measure your trash can, choose the right garbage bag sizes, and avoid common mistakes. Let’s get started!

BPI certified custom compostable trash bags with logo printing

BPI certified custom compostable trash bags with logo printing

Why Garbage Bag Size Matters?

A too-small bag rips under pressure. A too-large one sags and wastes material. Both scenarios cost you time and money.
Correct sizing prevents leaks, optimizes space, and reduces plastic use by 22% (EPA data). For most households, using properly fitted 13-gallon bags saves $50/year versus mismatched sizes.

Key Problems with Wrong Sizes

Issue Small Bag Large Bag
Waste Frequent replacements Excess plastic
Cost Higher long-term spend Unused capacity
Convenience Overflows easily Hard to tie

Measure twice to buy once. Even compostable bags need precise sizing to maximize eco-benefits.

How to Measure Your Trash Can for the Right Bag

Ever bought bags that slipped inside your bin? Accurate measurements solve this.
Measure your trash can’s height (include folded rim), width/diameter, and shape. For round bins: Bag width = 1.5 × can diameter. For square bins: Add 1 inch to length/width.

How to Measure Your Trash Can for the Right Bag

How to Measure Your Trash Can for the Right Bag

Step-by-Step Measuring Guide

  1. Height:
    • Measure from base to rim
    • Add 3″ if folding rim over
  2. Width:
    • Circular bins: Measure diameter, multiply by 1.5
    • Rectangular bins: Measure length + width
  3. Volume:
    • Round: π × (radius)² × height
    • Square: length × width × height
      Pro tip: For compostable bags, add 5% to dimensions—they’re thicker than plastic.

What Standard Garbage Bag Sizes?Explained (With Chart)

North American bags use gallons, but dimensions matter more than volume labels.
Most homes need 13-gallon (24″×27″) bags for kitchen bins. Commercial spaces require 30-33 gallon bags. Always check your measurements against this chart:

Volume Dimensions (inches) Best For
4-8 gal 18×20 Bathroom/office
13 gal 24×27 Standard kitchen
30 gal 32×40 Yard/construction

Metric Conversion

  • 1 gallon ≈ 3.78 liters
  • 13 gal = 49 liters
  • 30 gal = 114 liters

How Many Gallons Are There in a Compostable Bag

Bag Size (Inches) Approx. Capacity (Gallons) Common Use Case
16 x 17  3 gallons ,4 gallons Small countertop compost bins
17 x 18 5 gallons Small kitchen compost bins
23 x 29 13 gallons Standard kitchen trash cans
24 x 33 13 – 15 gallons Tall kitchen bins
30 x 39 30 gallons Medium-size outdoor/indoor bins
33 x 48 45 gallons Larger bins (commercial/industrial)

1 gallon, 2 gallon,Suitable for small cars or caddy compostable bin liners​

Standard Garbage Bag

HOW Choosing Bags by Trash Can Type

Not all bins are created equal. A bathroom bag won’t suit a diaper pail.
Match bag features to your bin’s purpose. Kitchen bags need durability; compost bags need certifications. Consider these scenarios:

Home Use

  • Kitchen: 13 gal, 1.5+ mil thickness
  • Bathroom: 4-8 gal, scented options
  • Diaper pails: Antimicrobial, tie-handle

Business Use

  • Offices: 8 gal with drawstrings
  • Restaurants: 30 gal, grease-resistant
    Specialty bins like narrow mouth or square designs need custom-sized bags.

Eco-Friendly Bag Sizing Tips

Compostable bags are 15% thicker—choose slightly larger sizes. For ORIZON’s certified compostable bags, we recommend:

Standard Size Compostable Equivalent
13 gal 14 gal capacity
8 gal 8.5 gal

Reduce waste by:

  • Avoiding oversized bags
  • Using kitchen scraps bins
  • Choosing BPI-certified options

different size garbage bags​ different size garbage bags​

Where to Buy Garbage Bags

Online Marketplaces:

Amazon – A wide selection of garbage bags, including compostable, biodegradable, and regular options, with the convenience of customer reviews and fast delivery.

eBay – Another platform where you can find both bulk and smaller quantities of garbage bags, often at discounted prices.

Walmart – Offers both online and in-store shopping for garbage bags of all sizes and types, including compostable options.

Target – Provides eco-friendly and traditional garbage bags with a variety of sizes and features.

Home Depot – Known for offering a wide range of trash bags, including heavy-duty, compostable, and biodegradable bags.

Physical Stores:

Supermarkets – Most large grocery stores (like Walmart, Target, Kroger, or Costco) carry a variety of kitchen and garbage bags.

Home Improvement Stores – Stores like Lowe’s and Home Depot carry garbage bags for household or commercial use.

Eco-Friendly Stores – If you’re looking for compostable bags, you can find them at eco-focused stores like Whole Foods or local sustainable product shops.

B2B Suppliers (for Wholesale):

If you’re looking for bulk or customized garbage bags, you can also purchase them from B2B marketplaces such as:

Alibaba

Made-in-China.com

IndiaMART

compostable kitchen trash bags compostable kitchen trash bags

How Much Is Trash Bags​

1. Regular Trash Bags:

Small (4–8 gallon): Around $10–$20 for a pack of 100.

Medium (10–13 gallon): Typically $15–$30 for a pack of 50-100 bags.

Large (30–55 gallon): Around $25–$50 for a pack of 30-50 bags.

2. Compostable/Biodegradable Trash Bags:

Small (3–8 gallon): Around $15–$25 for a pack of 50-100 bags.

Medium (10–13 gallon): Typically $20–$40 for 50-100 bags.

Large (30–55 gallon): Around $30–$60 for 30-50 bags.

3. Heavy-Duty Trash Bags:

Medium to large sizes (13–55 gallon): Typically $30–$60 for a pack of 20-40 bags.

For the specific price of garbage bags, you need to consult the manufacturer or supplier of garbage bags, because the price of each manufacturer is different.

How to Avoid Common Mistakes

Mistake 1: Ignoring shape. A “13-gallon” bag might not fit your rectangular bin.
Mistake 2: Skipping thickness checks. Compare mil ratings:

  • 0.9 mil: Light duty
  • 1.5 mil: Daily use
  • 2.0+ mil: Heavy debris
    Mistake 3: Using outdoor bags indoors. They’re often oversized and noisy.

How to Save Money on the Right Size

Buy in bulk, but calculate first. A 200-count of mis-sized bags wastes more than a pricier perfect-fit pack. Try these tips:

  1. Wholesale clubs: Costco’s 13-gal packs cost 30% less per bag.
  2. Subscription: Amazon’s auto-delivery offers 15% discounts.
  3. Thinner bags: For low-weight trash like office paper.

amazon kitchen garbage bags​ amazon kitchen garbage bags​

Conclusion

Measure your bin, match the chart, and consider usage needs. The right bag size saves money and reduces waste—especially with compostable options. Need custom sizes? Contact us for OEM solutions.

FAQ: Your Garbage Bag Sizing Questions Answered

What size bag fits a 13-gallon kitchen bin?

Look for 24″×27″ dimensions. Most “13-gallon” labels match this.

Can I use a 13-gal bag in a 10-gal can?

Yes, but fold excess material under the rim to prevent slipping.

How do I stop bags from slipping into the can?

Choose bags with fitted edges or drawstrings. Measure your can’s outer rim.

Are drawstring bags better than flat ones?

Drawstrings seal odors but cost 20% more. Best for kitchens.

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