index --- alpha --- intro --- length --- area --- volume --- weight --- money --- angles --- weather --- other --- foreign --- trades --- documents --- metric --- tables This page gives Imperial units of length. Square lengths, such as acres, are on the area page, cubic lengths are on the volume page and speed and acceleration are on the other units page. There is a quick convertor below which gives an answer rounded to 2 decimal places. The metric equivalents on this page are also all to 2 decimal places. There are more advanced conversions on the tables page.
Well-known units - Everyone knew these and used them constantly.
Land measurement - Although most people would not use these, for some reason they were in the school tables that we had to learn. They were used by surveyors, but they also crop up in descriptions of land, such as allotments. Click here for land measurement of area.
A correspondent suggests: "You might care to add to your bit about measuring chains that these expanded or contracted with heat. When George Everest and his minions surveyed India with chains they had to measure the air temperature all the time and calculate the changing length of the chain. I think I read in a biography of the man that India was mapped within a two inch tolerance! And they demolished whole buildings and cut down trees in order to keep triangulation lines dead straight. Everest, apparently, got very uptight when people didn't pronounce his name as Eve-rest: so he must be spinning in his grave every time someone talks of Mount Everest! There's karma for being a cantankerous old fogey." Nautical units - I must confess that I know nothing of sailing, so I hope that I haven't made too many mistakes in the following!
The human body - Of course many Imperial units were based on the human body, but these are called after parts of the body.
Older units - these belong further back in history, I think, and the lengths often varied.
Small units - less than an inch!
Finally, I can't resist adding this (half-inched from Twitter). They've left out 22 yards to a chain (Gunter's)! Everyone knows that! (We learned it at school.) How else would you know how long a cricket wicket is? (By the way, 'half inch' is rhyming slang. It means pinched,or stolen.) Someone has pointed out the finger in that diagram may be wrong. Above, I've said that a finger was 4 and a half inches, and was a cloth measure. The diagram says that it's 7/8 inch. I suspect that this is a different unit. It could be to measure spirits in a glass. Someone would say "Give me two fingers of whisky", which would be the height in a glass of two fingers' width. The width of a finger would be about 7/8 inch. This is, of course, really a measure of volume, and would depend on the size of the glass. Or maybe the diagram's "finger" is something else altogether. Someone else (my husband!) has pointed out a genuine error. It says a cable is 100 fathoms. A fathom is 6 feet or 2 yards. A cable is 608 feet or 101 and a third fathoms. Not even close! That is based on the old Imperial value of the nautical mile of 6080 feet. A modern nautical mile is 1852 metres (metric! boo hiss...) A modern cable would then be 185.2 metres or about 101.27 fathoms. Still wrong! © Jo Edkins 2009 - Return to units index Is 2 feet greater than 24 inches?2 feet equals 24 inches because 2x12=24. 3 feet equals 36 inches because 3x12=36. 4 feet equals 48 inches because 4x12=48. 5 feet equals 60 inches because 5x12=60.
Which is longer 1 foot or 1 inch?The question is ambiguous; there are 12 inches in each foot of measurement. So 12 is greater than one, but a foot is equal to 12 inches in length, so equal length. But one foot is longer than one inch in a length measurement.
What is the feet of 18 inch?A foot is a unit of length equal to exactly 12 inches or 0.3048 meters.
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Convert 18 Inches to Feet.. |