You can't. the first is an area & the second is a volume.
10,000 square feet.
100 feet x 100 feet = 10,000 square feet.
Cubic inches is a volume unit and inches is a length unit, you can't simply convert it.
100' x 50' = 5,000 square feet
100 square meters = 1,076.39 square feet.
You can convert cubic feet to cubic meters, or feet to meters. But you can't convert cubic feet to meters.
100 cubic feet is 0.002295684 acre-feet.
100 gallons = 13.37 cubic feet.
Cubic feet is a measure of volume while square feet is a measure of area. They do not directly convert.
100 Cubic Feet = 1 Brass
123.4568 cubic yards.
1 Square = 100 Square Feet, hence, divide the number of square feet by 100.
You can't convert that - it just doesn't make sense. You can convert (for example) feet to inches, and cubic feet to cubic inches. But you can't convert a unit of volume (like cubic inches) to a unit of length (like feet).
Divide cubic feet by 27 to get cubic yards.
Square feet x 0.0929 = square meters.
A square is 100 square feet so 240 squares equals 24,000 square feet.
It does not.