You don’t need a calculator come quickly discover the facility of something that’s an strange length, such as 37 5/8 inches. The clever folks in ~ This Old House show us two means to easily divide a length in fifty percent using just your ice measure.

You are watching: Half of 3 3 4 on a tape measure

In the video clip above, Tom Silva demonstrates the two methods. The first is easier due to the fact that it entails only one tape measure:

Measure her item. In this case, a board.Round up to a bigger number that’s quickly divisible through two. In this example, 40 inches.Pull a tape measure diagonally across the board until the 40-inch graduation aligns v one edge.Make a pencil line at the 20-inch graduation heat (half that 40). That’ll it is in the center of the 37 5/8 inch board.

The second method is to use two tape measures, pulling each across from opposite edges, and find whereby the similar measurement is. It is the center.

Math is fun, however sometimes mathematics shortcuts room even more fun.

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Ask Tom: how to discover Measurements Without mathematics | This Old House


Is it just me, or carry out both of this seem too many complicated? can not you just fold the tape measure in half? that’s even much easier with tailor’s tape.

Or I’ve also used twine; pull twine alongside the ice measure, reduced it the exact same length and also just wrinkles that in half ...

As one aside, transferring twine is much easier than transferring a tape measure up also. One thing that twine deserve to do because that you that’s cool, if you are looking in ~ a bunch that the same items to watch if one will fit, like whether you can get a bed through your apartment door (or come fit in her room), reduced a couple of pieces the length and also width of the area you’re involved about, roll ‘em increase in your purse, jacket pocket, wherever, and take off. Now when you’re out trying to find beds yes no must remember room size or lug a tape measure up everywhere, simply stretch the twine the end on the floor through the item and also et voila, you done.

I need to make my own show “This Old Man” with a bunch of top that room useful, but additionally absolutely guarantee to awkward the kids ;)