Hopper Capacity: How to Convert Cubic Feet to Pounds by Material
A hopper is sold in cubic feet, but your forklift lifts pounds. Use bulk density to pick the right size.
Questions? Call +1 (602) 921-6133Get the Industrial Hopper Sizing Guide + FDA spec sheet and price in 24 h
Pick your product, leave an email. No calls unless you ask for one.
TL;DR: Pounds in a hopper = cubic feet x bulk density (lb per cu ft). A 30 cu ft hopper of a material at 40 lb/cu ft holds 1,200 lb; at 70 lb/cu ft it holds 2,100 lb. Pick the hopper by the weight your forklift and the hopper are rated for, then by volume. Bonar hoppers range from about 11.5 to 57 cu ft. LT Plastics, an authorized Bonar Plastics distributor based in Phoenix, AZ, supplies HDPE bulk containers, hoppers, tanks and speed bumps to US plants.
Quick Facts
| Hopper volume | 30 lb/cu ft | 50 lb/cu ft | 70 lb/cu ft |
|---|---|---|---|
| 11.5 cu ft | 345 lb | 575 lb | 805 lb |
| 20 cu ft | 600 lb | 1,000 lb | 1,400 lb |
| 30 cu ft | 900 lb | 1,500 lb | 2,100 lb |
| 57 cu ft | 1,710 lb | 2,850 lb | 3,990 lb |
Use your own bulk density: weigh a known volume (for example a 1 cu ft box) of the material as it sits in the hopper.
Steps
What We Know That Buyers Often Miss
See all hopper models and types of industrial hoppers.
Next Step
Send material, bulk density, forklift capacity and hoppers needed in the volume quote form below.
FAQ
How do I calculate hopper capacity?
Cubic feet x bulk density = pounds.
What if I do not know bulk density?
Weigh a known volume of the material in a box; divide weight by volume.
Sources
Ready to spec your containers?
Browse our hopper containers with full dimensions and load ratings, or send your specs and get a spec sheet plus freight quote within 24 hours. Ships nationwide + Mexico.
Have a similar project? Tell us in 30 seconds
Get a personalized proposal with pricing, lead time and product recommendations.
Part of the topic guide
Industrial Hoppers and Hopper Containers: Types, Sizes and Selection