Question 753530
As you figured, cube-shaped box 10cm X 10cm X 10 cm has a volume of {{{1000cm^3}}}. For any other box with square corners, just multiply length of the base, times width of the base, and times the height.
 
The volume formula for a cylinder is {{{V=pi*radius^2*height}}},
where {{{pi}}}= 3.14159..... (3.14 is accurate enough),
and {{{radius}}} is half of the diameter of the base.
For example, I have a coffee can that is 14 cm tall and 10 cm wide.
It has {{{height=14cm}}}, {{{radius=5cm}}} and {{{Volume=pi*5^2*14=1100cm^3}}}, so it is a bit too big.
A 28 ounce can of crushed tomatoes that I have is also 10cm wide (radius = 5 cm), but it is only 12 cm tall, and its volume is less than 1000 cubic centimeters:
{{{Volume=pi*5^2*12=942cm^3}}}
 
There are formulas to calculate the volume of other simple shapes, like
 
WITHOUT CALCULATING:
For any other shape, you can easily measure the volume, or estimate it by comparison. If you have a strangely shaped flower vase, its volume is how much water it takes to fill it. A volume of 1000 cubic centimeters is 1000 milliliters, meaning 1 liter. (You can measure 1 liter of water by weighing it (it weighs 1 kilogram), or measuring its volume by comparison to some other container. If you have a measuring cup that holds 1 liter (1000 cubic centimiters), you could see if 1000 cubic centimeters of water (or rice) would fill your container.