Add or subtract lengths in inch (decimal or fraction), feet, centimeters, and millimeters. Get in equations similar to you would write it on paper, e.g. 4′ 3 7/8″ + 5 cm.
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See the results in inches, feet, centimeters, and millimeters – all outcomes are in imperial and also metric.
How to add or Subtract Feet & Inches
Adding or individually lengths in feet and also inches might seem complicated, but it’s actually really easy if you follow a few simple steps. It’s even easier to add or subtract size measurements utilizing a calculator prefer the one above, but follow this easy procedures to learn just how to execute it yourself.Step One: convert Feet and Inches to Decimal
The an initial thing come do as soon as adding, subtraction, or doing various other math with inches, feet, and other dimensions is to convert all the measurements right into a usual unit of measure.
Start by converting inch fractions right into decimal. Then transform feet, centimeters, and also millimeters come inches.
Convert inch fractions come decimal by splitting the bottom half of the portion by the bottom half on a calculator. If there is a totality number, add it to the decimal worth after converting.
You can additionally use an inch portion calculator come quickly uncover the decimal worth for an customs fraction.
For example:3/8 = 3 ÷ 8 = .375 inches
Convert feet to inches by multiply the variety of feet by 12, since there space 12 inch in a foot. Using a feet come inches counter calculator likewise simplifies this step.
For example:3 feet = 3 × 12 = 36 inches
Try ours other length conversion calculators to transform other systems to decimal inches.
Step Two: include or Subtract the convert Values
With all dimensions in an inch decimal form, include or subtract all dimensions as you generally would, using a calculator as needed. The final result will be the size in inches; friend can transform the an outcome to any kind of other unit in ~ this point.
To express the amount or distinction value in feet, merely multiply through 12.
The complying with charts leveling the process of including and subtracting fractional inch worths together and might be faster than using a calculator.
Inch portion Addition Chart
| 1/4″ | 3/8″ | 1/2″ | 5/8″ | 3/4″ | 7/8″ | 1″ | 1 1/8″ |
| 3/8″ | 1/2″ | 5/8″ | 3/4″ | 7/8″ | 1″ | 1 1/8″ | 1 1/4″ |
| 1/2″ | 5/8″ | 3/4″ | 7/8″ | 1″ | 1 1/8″ | 1 1/4″ | 1 3/8″ |
| 5/8″ | 3/4″ | 7/8″ | 1″ | 1 1/8″ | 1 1/4″ | 1 3/8″ | 1 1/2″ |
| 3/4″ | 7/8″ | 1″ | 1 1/8″ | 1 1/4″ | 1 3/8″ | 1 1/2″ | 1 5/8″ |
| 7/8″ | 1″ | 1 1/8″ | 1 1/4″ | 1 3/8″ | 1 1/2″ | 1 5/8″ | 1 3/4″ |
| 1″ | 1 1/8″ | 1 1/4″ | 1 3/8″ | 1 1/2″ | 1 5/8″ | 1 3/4″ | 1 7/8″ |
| 1 1/8″ | 1 1/4″ | 1 3/8″ | 1 1/2″ | 1 5/8″ | 1 3/4″ | 1 7/8″ | 2″ |
Inch portion Subtraction Chart
| 0″ | -1/8″ | -1/4″ | -3/8″ | -1/2″ | -5/8″ | -3/4″ | -7/8″ |
| 1/8″ | 0″ | -1/8″ | -1/4″ | -3/8″ | -1/2″ | -5/8″ | -3/4″ |
| 1/4″ | 1/8″ | 0″ | -1/8″ | -1/4″ | -3/8″ | -1/2″ | -5/8″ |
| 3/8″ | 1/4″ | 1/8″ | 0″ | -1/8″ | -1/4″ | -3/8″ | -1/2″ |
| 1/2″ | 3/8″ | 1/4″ | 1/8″ | 0″ | -1/8″ | -1/4″ | -3/8″ |
| 5/8″ | 1/2″ | 3/8″ | 1/4″ | 1/8″ | 0″ | -1/8″ | -1/4″ |
| 3/4″ | 5/8″ | 1/2″ | 3/8″ | 1/4″ | 1/8″ | 0″ | -1/8″ |
| 7/8″ | 3/4″ | 5/8″ | 1/2″ | 3/8″ | 1/4″ | 1/8″ | 0″ |
We’ve extended the basics of including length measurements, and also we hope you’re emotion confident utilizing the actions above. Learn an ext about how to add feet and inches in our thorough guide.
How to multiply or division Feet & Inches
The actions to main point or divide feet and inches are comparable to the steps for including and individually above.
Step One: convert Feet and also Inches come Decimal
The an initial step in multiplying or dividing is to transform the size measurements come a decimal value. If the size measurements are in feet and also inches, it might be simplest to transform to inches.
Step Two: main point or Divide
With the size value convert to a decimal, it’s now feasible to multiply or divide similar to you would certainly with any type of decimal number. Because that example, if your inch value is 1.25 and you should multiply through 2, just multiply using 1.25 × 2 = 2.5.
The complying with charts make multiplying or separating fractional inch values much easier.
Inch portion Multiplication Chart
| 1/4″ | 3/8″ | 1/2″ | 5/8″ | 3/4″ | 7/8″ | 1″ |
| 1/2″ | 3/4″ | 1″ | 1 1/4″ | 1 1/2″ | 1 3/4″ | 2″ |
| 3/4″ | 1 1/8″ | 1 1/2″ | 1 7/8″ | 2 1/4″ | 2 5/8″ | 3″ |
| 1″ | 1 1/2″ | 2″ | 2 1/2″ | 3″ | 3 1/2″ | 4″ |
| 1 1/4″ | 1 7/8″ | 2 1/2″ | 3 1/8″ | 3 3/4″ | 4 3/8″ | 5″ |
| 1 1/2″ | 2 1/4″ | 3″ | 3 3/4″ | 4 1/2″ | 5 1/4″ | 6″ |
| 1 3/4″ | 2 5/8″ | 3 1/2″ | 4 3/8″ | 5 1/4″ | 6 1/8″ | 7″ |
| 2″ | 3″ | 4″ | 5″ | 6″ | 7″ | 8″ |
Inch Fraction division Chart
| 1/8″ | 5/64″ | 1/16″ | 3/64″ | 1/32″ | 1/32″ | 1/64″ |
| 1/4″ | 11/64″ | 1/8″ | 7/64″ | 5/64″ | 1/16″ | 1/16″ |
| 3/8″ | 1/4″ | 3/16″ | 5/32″ | 1/8″ | 7/64″ | 3/32″ |
| 1/2″ | 21/64″ | 1/4″ | 13/64″ | 11/64″ | 9/64″ | 1/8″ |