How to Convert Feet to Inches: Formula, Conversion, Examples, FAQs

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What Is the Feet to Inches Conversion?

Feet to inches conversion is used for converting a length measurement in feet into an equivalent measurement in inches. It is done by multiplying the given length in feet by 12.

There are 12 inches in one foot. 

1 foot = 12 inches

A foot (abbreviation: ft, symbol: ) is a customary unit to measure the length or distance. “Foot” refers to a single unit of measurement whereas “feet” is its plural form. 

Example: 2 feet = 2 ft = 2

An inch (The abbreviation: in, symbol: ) can be defined as a unit of length in the customary system of measurement. The inch is commonly used in the United States and a few other countries.

Example: 5 inch = 5 in = 5

Feet to Inches Conversion Formula

1 foot = 12 inches

Thus, n feet = (n $\times$12) inches

To convert feet to inches, simply multiply the length in feet by 12.

The formula to convert feet to inches (ft. to in.) is as follows:

Length in inches = Length in feet $\times$ 12

feet to inches conversion formula

Remember: An inch is a smaller unit than feet, so it takes 12 inches to make 1 foot. This is why you multiply to convert feet to inches.

Example: Convert 10 feet to inches.

Inches = Feet $\times$ 12

Thus, 10 feet = 10 $\times$ 12 = 120 inches

How to Convert Feet to Inches

Step 1: Note down the given length in feet.

Step 2: Multiply the number of feet by 12, as there are 12 inches in one foot.

Step 3: The result will be the equivalent length in inches. 

Example: Convert 8 feet to inches. 

To convert 8 feet to inches, multiply the number of feet (8) by the conversion factor (12).

Length in inches = 8 $\times$ 12 = 96 inches

Therefore, 8 feet = 96 inches.

Feet to Inches Chart

FeetInches
1′12″
2′24″
3′36″
4′48″
5′60″
6′72″
7′84″
8′96″
9′108″
10′120″

You can use this chart as a reference to quickly convert different lengths from feet to inches. Simply multiply the number of feet by 12 to get the equivalent length in inches.

Facts on Feet to Inches

  • The concept of measuring with feet dates back to at least the Egyptians, who used the length of a pharaoh’s foot as a standard unit.
  • The word “inch” is derived from the Latin word “uncia,” which means “twelfth part.”
  • To convert feet to inches, multiply the number of feet by 12.
  • To convert inches to feet, divide the number of inches by 12.

Conclusion

In this article, we have learned about feet, inches, and the conversion of feet to inches. Converting feet to inches is useful when you want to express a measurement in a smaller unit within the same system, or when you need to communicate the measurement in a context that primarily uses inches. Now let’s solve some examples and practice problems to understand the concept better.

Solved Examples on Feet to Inches

1. Convert 7 feet and 6 inches to inches.

Solution: 

To convert feet to inches, we multiply the number of feet by 12. Here, we will first convert 7 feet to inches and then we will add 6 inches to the result.

7 feet $\time$ 12 inches = 84 inches.

84 inches + 6 inches = 90 inches.

Therefore, 7 feet and 6 inches is equal to 90 inches.

2. A rope is 15 feet long. How many inches long is the rope?

Solution:

To convert feet to inches, we multiply the number of feet by 12.

So, 15 feet $\times$ 12 = 180 inches.

Therefore, the rope is 180 inches long.

3. A person’s height is 5 feet 9 inches. How many inches tall is the person?

Solution:

To convert 5 feet to inches, we multiply 5 by 12. 

5 feet $\times$ 12 inches = 60 inches.

5 feet 9 inches = 60 inches + 9 inches = 69 inches.

Therefore, the person is 69 inches tall.

4. Sara is 4 feet tall. Jeffrey is 42 inches tall. Who is taller?

Solution:

We cannot compare two heights with different units.

Let’s first convert 4 feet into inches.

To convert feet to inches, multiply the number of feet by 12.

4 feet $\times$ 12 = 48 inches.

Here, 42 inches < 48 inches

Sara’s height is greater than Jeffrey’s height.

Thus, Sara is taller than Jeffrey.

5. A wall is 120 feet tall. If a ladder can reach up to 20 feet, how many inches short is the ladder?

Solution:

Height of the wall = 120 feet.

Ladder reaches up to 20 feet.

Shortage in feet = 120 feet – 20 feet = 100 feet.

To convert feet to inches, multiply the number of feet by 12.

Thus, shortage in inches = 100 $\times$ 12 

                                         = 1200

Therefore, the ladder is 1200 inches short of reaching the top of the building.

Practice Problems on Feet to Inches

How to Convert Feet to Inches: Formula, Conversion, Examples, FAQs

Attend this quiz & Test your knowledge.

1

What is the conversion factor for converting feet to inches?

6
10
12
None of the above
CorrectIncorrect
Correct answer is: 12
1 foot = 12 inches
To convert feet to inches, multiply the length in feet by 12.
2

How do you convert feet to inches?

Multiply the number of feet by 12
Multiply the number of feet by 10
Divide the number of feet by 12
Divide the number of feet by 10
CorrectIncorrect
Correct answer is: Multiply the number of feet by 12
To convert feet to inches, you multiply the number of feet by 12 since there are 12 inches in one foot.
3

How many inches are there in 0.5 feet?

3 inches
6 inches
9 inches
12 inches
CorrectIncorrect
Correct answer is: 6 inches
To convert feet to inches, we multiply the number of feet by 12.
0.5 feet $\times$ 12 = 6 inches.
4

If a person's height is 6 feet 2 inches, how many inches tall are they?

6 inches
14 inches
62 inches
74 inches
CorrectIncorrect
Correct answer is: 74 inches
To convert 6.2 feet to inches, we first multiply 6 by 12. Then we add the additional 2 inches.
6 feet 12 inches = 72 inches. 72 inches + 2 inches = 74 inches.
5

If a person takes 10,000 steps in a day and each step is approximately 1 foot, how many inches does the person walk?

1,200 inches
12,000 inches
120,000 inches
1,200,000 inches
CorrectIncorrect
Correct answer is: 120,000 inches
To convert 10,000 feet to inches, we multiply 10,000 by 12.
10,000 feet $\times$ 12 inches = 120,000 inches.

Frequently Asked Questions on Feet to Inches

To convert inches to feet, you divide the number of inches by 12.

No, feet and inches are not part of the metric system. The metric system primarily uses meters and centimeters for length measurements. Both feet and inches

One foot is equal to 12 inches.

1 square inch $= \frac{1}{144}$ square feet.

1 square foot $= \frac{1}{44}$ square inches.

1 cubic foot $= 1728$ cubic inches. The conversion from cubic feet to inches is done by multiplying the given volume by 1728. For example, 3 cubic feet $= 3 \times 1728 = 5184$ cubic inches.

1 square foot $= 144$ square inches. To convert square feet to square inches, we multiply the given area by 144. For example, 2 square feet $= 2 \times 144 = 288$ square inches.

1 feet $= 12$ inch

1 inch $= \frac{1}{12}$ feet $= 0.0833333$ feet (since 1 foot is much bigger than 1 inch).