Always double-check that the dimensions of the shape you’re working with have the same unit before you calculate the volume. [2] X Expert Source Grace Imson, MAMath Instructor, City College of San Francisco Expert Interview. 1 November 2019.

For instance, if a fish tank is 40. 64 cm long, 25. 4 cm wide, and 20. 32 tall you would calculate the volume by multiplying these dimensions together: Volume=Length×Width×Height{\displaystyle {\text{Volume}}={\text{Length}}\times {\text{Width}}\times {\text{Height}}}Volume=40. 64×25. 4×20. 32{\displaystyle {\text{Volume}}=40. 64\times 25. 4\times 20. 32}Volume=20,975cm3{\displaystyle {\text{Volume}}=20,975cm^{3}} To find the volume of a cylinder, start by finding the height of the cylinder. Then, find the radius of the circle at the top or bottom. Next, find the area of the circle, which you can find with the formula πr2{\displaystyle r^{2}}, where r is the radius. Finally, multiply the area of the circle by the height of the cylinder to find the volume. [7] X Expert Source Grace Imson, MAMath Instructor, City College of San Francisco Expert Interview. 1 November 2019.

If the volume of the fish tank, in cubic centimeters, is 20,975, to find the volume in liters, calculate 20,975÷1,000=20. 975{\displaystyle 20,975\div 1,000=20. 975}. So, a fish tank that is 40. 64 cm long, 25. 4 cm wide, and 20. 32 tall has a volume of 20. 975 L.

If the volume of a carton of almond milk is 1,890 mL, to convert to liters, you would calculate 1,890mL÷1,000=1. 89L{\displaystyle 1,890mL\div 1,000=1. 89L}.

If a the volume of a carton of almond milk is 189 cL, to convert to liters, you would calculate 189cL÷100=1. 89L{\displaystyle 189cL\div 100=1. 89L}.

If a the volume of a carton of almond milk is 18. 9 dL, to convert to liters, you would calculate 18. 9dL÷10=1. 89L{\displaystyle 18. 9dL\div 10=1. 89L}.

If the volume of a kiddie pool is 240 kl, to convert to liters, you would calculate 240kl×1000=240,000L{\displaystyle 240kl\times 1000=240,000L}.

If the volume of a kiddie pool is 2,400 hl, to convert to liters, you would calculate 2,400hl×100=240,000L{\displaystyle 2,400hl\times 100=240,000L}.

If the volume of a kiddie pool is 24,000 dal, to convert to liters, you would calculate 24,000dal×10=240,000L{\displaystyle 24,000dal\times 10=240,000L}.

If a carton of almond milk is 128 fl oz, to convert to liters, you would calculate 128floz÷33. 81=3. 786L{\displaystyle 128fl;oz\div 33. 81=3. 786L}.

If a pitcher has a capacity of 8 fl pt, to convert to liters, you would calculate 8flpt÷2. 113=3. 786L{\displaystyle 8fl;pt\div 2. 113=3. 786L}.

If a pitcher has a capacity of 4 quarts, to convert to liters, you would calculate 4qt÷1. 057=3. 784L{\displaystyle 4qt\div 1. 057=3. 784L}.

If a fish tank has a volume of 120 gallons, to convert to liters, you would calculate 120gal×3. 7854=454. 248L{\displaystyle 120gal\times 3. 7854=454. 248L}.