Question about Optics
Answer :: 31.4961 in.
But, what you might find more useful is how to quickly convert a measurement using google. Your question, for example, could be answered by going to google.com and entering; convert 800 mm to inches
Also, could be handy to know that 800mm = 80cm or .8m
(cm = centimeters / m = meters). A meter is just a bit more than an imperial yard. Imperial being inches, feet, yards & miles ..the most-commonly used measurements in the United States. Check Wikipedia for more detailed & lesser known measures of imperial measurement.
Imperial units Wikipedia
Posted on Sep 25, 2017
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