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You did not specify what units those numbers are describing, but I'll assume you meant inches, seeing as a trash can that is 20 cm high would be quite small, and one that is 20 ft. or 20 m high would be excessively large.
Your trash can is 20*20*30= 12,000 cubic inches. A gallon is 231 cubic inches, so your trash can would hold 12,000/231= 51.948 gallons.
What else can I help you with?
How many gallons is 30 inch by 20 inch x 15 inch?
38.961039
How many gallons of gas to go 663 miles?
That depends a great deal on your gas mileage. If you get 30 mpg, you'll need 22 gallons. If you get 20 mpg, you'll need 33 gallons.
How many gallons of gas do you need to drive 2500 miles?
It depends on your gas mileage. If you get 30 mpg, you'll need 83 and 1/3 gallons. If you get 20 mpg, you'll need 125 gallons.
How many miles can one drive on 17 gallons of gas?
If you get 30 mpg, 510 miles. If you get 20 mpg, 340 miles.
How many gallons of gas does a BMW need to get to Florida from Texas?
About 30 Gallons
How much gas do you need for 583 miles?
At 30 mpg, you will need about 20 gallons. At 20 mpg, you will need about 30 gallons.
How many gallons is 30 inch by 20 inch x 15 inch?
38.961039
How many gallons of water does a a healthy elephant drink each day?
Answer10-30 gallons per day.
How many gallons can a 1992 Chevy Silverado gas tank hold?
20 to 30 max
How many gallons is the gas tank on a 1989 G 30 van?
guessing 20 gal.
How many gallons of gas do you use to get to dallas from houston?
It's about 240 miles. If you get 30 mpg, that's 8 gallons. If you get 20 mpg, that's 12 gallons.
30 litters is how many gallons?
30 liters is equivalent to approximately 7.93 gallons.
How many gallons is 25 percent of 30 gallons?
7.5 gallons
How many gallons does a escalade hold?
30 Gallons
How many gallons in 30 pipe?
3780 gallons
How many imperial gallons are in 30 liters?
There are approximately 6.6 imperial gallons in 30 liters.
How many gallons is 30 cubic feet?
There are approximately 224.71 gallons in 30 cubic feet.
