Conversion formula

The conversion factor from feet to inches is 12, which means that 1 foot is equal to 12 inches:

1 ft = 12 in

To convert 3420 feet into inches we have to multiply 3420 by the conversion factor in order to get the length amount from feet to inches. We can also form a simple proportion to calculate the result:

1 ft → 12 in

3420 ft → L_(in)

Solve the above proportion to obtain the length L in inches:

L_(in) = 3420 ft × 12 in

L_(in) = 41040 in

The final result is:

3420 ft → 41040 in

We conclude that 3420 feet is equivalent to 41040 inches:

3420 feet = 41040 inches

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 inch is equal to 2.4366471734893E-5 × 3420 feet.

Another way is saying that 3420 feet is equal to 1 ÷ 2.4366471734893E-5 inches.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that three thousand four hundred twenty feet is approximately forty-one thousand forty inches:

3420 ft ≅ 41040 in

An alternative is also that one inch is approximately zero times three thousand four hundred twenty feet.

Conversion table

feet to inches chart

For quick reference purposes, below is the conversion table you can use to convert from feet to inches