Use this free trash bag size calculator to find the right garbage bag for your bin. Enter your trash can measurements below and the tool will estimate the recommended bag width, height, closest common bag size, suggested strength, and best use case.
Use this quick chart as a reference after calculating your bin size. The best trash bag depends on both size and strength, especially for wet, sharp, or heavy waste.
| Common Size | Best For | Typical Use |
|---|---|---|
| 4-8 Gallon | Small bins | Bathroom, office, bedroom |
| 13 Gallon | Kitchen cans | Home kitchens, light waste |
| 30-33 Gallon | Medium cans | Office, janitorial, small business |
| 40-45 Gallon | Commercial bins | Restaurants, retail, kitchens |
| 55 Gallon | Heavy-duty cans | Contractor, warehouse, cleanup |
| 60-95 Gallon | Large outdoor bins | Commercial, industrial, outdoor carts |
A properly sized trash bag should fit around the rim, hang slightly over the edge, and still have enough height to tie closed. This calculator uses common liner-sizing formulas for round and rectangular bins.
Choosing the right trash bag size prevents slipping, tearing, overfilling, and wasted material. For restaurants, commercial kitchens, warehouses, construction cleanup, or heavy loads, consider using heavy-duty trash bags designed for durability and leak resistance.
If your trash bag keeps sliding into the can, choose a wider or taller bag. If it keeps tearing, the issue is probably thickness, not size.
Measure the width or diameter of your trash can opening and the height of the can. Then use the calculator above to estimate the best bag width, height, and gallon size.
A standard 13-gallon kitchen trash bag usually fits most kitchen cans. If the bag slips or tears, choose a slightly taller or stronger bag.
Many restaurants use 33-gallon, 45-gallon, or 55-gallon trash bags depending on the bin size and waste volume. Heavy-duty bags are recommended for food waste and wet trash.
Yes. Size controls fit, but thickness controls strength. Heavy, sharp, or wet waste should use thicker bags to reduce tearing and leaks.
