Feet and Inches Calculator

Inches:

Feet:

Inches:

Feet:

Try this feet and inches calculator to add, subtract, multiply or divide feet and inches fractions. No doubt such calculations are very tricky and may confuse you.

That is why we have designed this free ft and in calculator so you may not feel trouble in performing such calculations.

What Is Foot And Inch?

"Foot and inch are both units used in the imperial measurement system"

In the imperial system of measurement, one foot is equal to exactly 12 inches. This relationship is clearly illustrated in the diagram below.

feet and inches

No matter whether a length is measured in feet or inches, our advanced feet-to-inches calculator instantly converts the values into accurate feet and inches. Sounds convenient and time-saving, right?

Feet and Inches Fraction Calculations:

Now let’s explore how fractional values in feet and inches can be handled. In this short yet essential section, we’ll explain how to solve these calculations using simple formulas.

Addition:

Addition = Value 1 (ft + in) + Value 2 (ft + in)

Subtraction:

Subtraction = Value 1 (ft + in) − Value 2 (ft + in)

Multiplication:

Multiplication = Value 1 (ft + in) × Value 2 (ft + in)

Division:

Division = Value 1 (ft + in) / Value 2 (ft + in)

All of the calculations mentioned above are automatically and accurately handled by our advanced online feet and inches calculator.

If your calculations include mixed numbers, you can quickly simplify them using our free mixed numbers calculator to get precise results.

Important Tables:

Below is a collection of commonly used standard values in feet and inches. You can select the required values and perform quick calculations using our free feet-and-inches calculator.

Inch Fractions to Total Decimal Inches:

Measurement in fraction (Inches)	Total decimal measurement (Inches)
5/7	0.7142
5/8	0.625
5/5	1
4/2	2
7/5	1.4
3/7	0.4285
5*1/2	5.5
6*1/2	6.5
2*1/4	2.25
3*1/8	3.125
1*3/4	1.75
4*1/2	4.5
7*1/2	7.5
8*1/2	8.5

Inch Mixed Numbers By Difference Of 2:

Measurement in fraction (Inches)	Total decimal measurement (Inches)
23*3/4	23.75
11*3/8	11.375
17*3/4	17.75
17*5/8	17.625
19*3/4	19.75
29*5/8	29.625
17*3/8	17.375
21*7/8	21.875
33*3/4	33.75
29*3/4	29.75

Since all the values mentioned above are fractional, you may also reduce or simplify them easily using our fraction simplifier calculator.

How to Calculate Inches and Feet?

Let’s walk through a practical example to understand the calculation process more clearly.

Example #01:

Jack measured the room dimensions and noted the following values:

Length = 10 ft 5/8 inches

Width = 6 ft 2*1/3 inches

Find the total area of the room in inches. Remember that both dimensions must first be converted entirely into inches.

Step 1: Consider the length

Length = 10 ft 5/8 inches

Convert feet into inches: 10 × 12 = 120 inches

5/8 inches = 0.625 inches

Total Length = 120 + 0.625 = 120.625 inches

Step 2: Consider the width

Width = 6 ft 2*1/3 inches

Convert feet into inches: 6 × 12 = 72 inches

2*1/3 inches = 2.33 inches

Total Width = 72 + 2.33 = 74.33 inches

Calculate the area:

Area = Length × Width = 120.625 × 74.33 = 8966.056 in²

If manual calculations feel confusing or time-consuming, simply use our free feet and inches calculator to get accurate results within seconds.

How Feet and Inches Calculator Works?

This free calculator processes feet as whole numbers and inches as whole values, fractions, or mixed numbers. It then simplifies the result into its lowest fractional form.

Input:

Enter the feet as a whole number and inches as a whole value, fraction, or mixed number for the first measurement
Choose the mathematical operator you want to apply
Repeat the same steps for the second measurement
Click the calculate button to get results instantly

Output:

Computes total values in feet and inches
Shows accurate conversions between imperial and metric units

FAQ’s:

Is it 12 inches or a foot?

Both foot and inch are standard units of length measurement. A foot is a larger unit, while an inch is smaller. Their relationship is:

1 Foot = 12 Inches

What is the traditional symbol for inches?

The inch is traditionally represented by a double-quote symbol (").

Example: 300 inches = 300"

How many feet are there in 2 inches?

Two inches = 0.166667 feet

How many centimetres are there in 1 foot?

One foot = 30.48 cm

How many total centimeters are there in 6 and a half inches?

6 1/2 inches = 13/2 × 30.48 = 198.12 cm

Conclusion:

Accurate measurements in feet and inches are vital for construction, design, and everyday tasks. Our reliable feet and inches calculator helps contractors, architects, students, and professionals determine exact measurements and achieve precise, well-planned results.

References:

Wikipedia — International foot, Imperial units, Metric foot, Obsolete feet, Dimension
DIY Plan — Centimeters
Britannica — Inch, Libra