# inches to mm conversion problem...

• posted

Hi,

currently I'm building the greatplanes extra 300S .40

I'm having troubles understanding the manual when it comes down to measurements. (not used working with "inches"....

1", 5",...3/4"...etc is not a problem. (I have a conversion chart)

I have difficulties with measurements like this one:

for example : 26-1/2" .....or 5-3/8"

How should I understand this?

What would be the size in mm for 26-1/2"? (knowing that 1" = 25.4 mm)

I know it's a silly question but I really don't have a clue :-) Thanks in advance :-)

Joris.

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26.5 * 25.4

5.375 * 15.4

• posted

It's simply 26 inches + 1/2 inch, or 26.5 inches 5 inches + 3/8 inch or 5.375 inches.

673.1 millimeters

Google will do these confersions for you!

• posted

simply put 26.5 (inches) times 25.4 (mm/inch) into a calculator... ou

The 26-1/2 = 26 + 1/2 = 26.5 Its a strange notation if looked a mathematicly... but just consider the - to be a decimal and then do th fractional calculation

-- fhhuber50677

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• posted

It is read as "26 and 1/2 inches" it is written with the dash 26-1/2 s

the fraction is clearly visible, othewise it might be interpreted a

261/2 "two hundred sixty one divided by two"

As the above poster said simply turn the fraction into a decimal ad the whole number and convert to mm.

HT

-- Majortomsk

----------------------------------------------------------------------- Majortomski's Profile:

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And then plug it into this handy dandy converter

Dave

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Here's a link to a handy little conversion program that does mm to inches and a whole lot more.

Tom

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Great little piece of software. I've been using "Convert" for a long time. Couldn't do without it now.....I don't think......

Ken Day

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Ted shuffled out of his cave and grunted these great (and sometimes not so great) words of knowledge:

If you don't want to be running to the computer every few minutes for a conversion (or using the calculator ), most drafting supply stores have metal rulers (cork backed ) that have inches on one edge and millimeters on the other edge. I have seen them in 12", 18" and 24" lengths (they probably have longer lengths also ).

I recently completed an AeroNaut kit (which is all in millimeters ) and the 18" ruler I have was a godsend.

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this was indeed the problem. I thought the "-" was a "minus" So in fact, the "-" is a "+"....:-) I do prefer the "," :-) What's easier than 26,5"?

Thx for al the help!!

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Hi all --

There is a simple convert program that you can file or place on your desktop; this little gem can convert anything to anything such as furlongs per fortnights to miles per hour!

It can be downloaded from my Web Site -- got to 'Articles' and scroll down to Conversions, or I can send it to you as an attachment (it's only

453KB).

Cheers -- \_________Lyman Slack________/ \_______Flying Gators R/C___/ \_____AMA 6430 LM____ / \___Gainesville FL_____/ Visit my Web Site at