Snowman44Are metric measurements like decameters and hectometers ever used?
empireOfLoveThey are “technically correct” measurements since they are a valid prefix, and could be used if you wanted. but they are very infrequently used in any industry. Since most of the time measurements are better served by higher precision (just using Meters) or need no precision at all over long distance (switch to kilometers). No need for excess measurement types unless necessary
Bro skips right past centimetres.
Provoked GamerCentimetres and meters are the two I use the most and see the most used, then kilometres at a close third.
Well he asked about deca and hectometers, which are all larger-than meters.
But the same kind of rules apply below the decimal point as above it. We have millimeters (0.001 extreme precision), centimeters (0.01 high precision), and meters (1 low-ish precision). Decimeters (0.1) exist but are rarely used since both meters and centimeters can get the same result. Micro meters and nanometers are also used more frequently, but it becomes industry specific when actually doing things that small.
For distance, no. Day to day we use mm, cm, m and km. But in more specialised settings (e.g. construction) I’ve seen sometimes decameters.
For weight yes, grams, hectograms, kg, tons. Liquids is usually ml, cl, liters, hectoliters (not sure it’s spelt that way).
In labs I’ve also seen also micro and nano of all three units.
Use cubes for water. Short for cubic meter. That is 1 meter by 1 meter by 1 meter which is also exactly 1000 liters.
This is one of the convenient metric parameters where they made an easy conversion allowing you to precisely use distance to calculate volume.
Valdi, but rarely used, as it’s usually just as fast to say “two hundred meters” instead of “two hecto meters”.
However, those prefixes have other (non-SI) uses. A hectare is common way of referring to a 100x100 meter area. And a decare is 10 ares, i.e. 0.1 hectare.
richieadlerAlso: hectopascals.
Right, forgot about that one.
To be fair, once all the boomers are gone we’re probably going to go full kPa.
Meh, who knows. The change from millibars was quite a while ago.
I’ve seen some obscure uses in technical areas, but in general use no they aren’t used. Metric is better skipping all those and using the thousands prefixes. cm is used but mm is much better. Europe uses cl but we in Canada don’t, we use ml.
Europe uses cl, ml and dl. A can of coca Cola is 33 ml, a shot is 2 cl. Then you switch to litres at 0.5l.
We also use decilitre, but only in cooking, and I think most don’t think of it as 0.1 l, but rather just think of it as the size of a measuring cup, i.e. it has more in common with “1 cup of sugar” than with “0.5 liter of water” in terms of how you think about it. More abstract, if that makes sense.
A can is 330ml or 33cl.
All labeling is in ml right now. Recipes still often use cl/dl.
Metric is better by a thousand (double entendre).
Brewers use decalitres
Saying something is 80 meters long is far easier to process than eight decameters.
CalamityBallsDecilitres/centilitres are relatively common, but they're the only ones that come to mind.
In The Netherlands we actually use “hectometerpaaltjes”, which translates to hectometer-signs. They are numbered signs placed on regional roads and highways every 100 meters, which is a hectometer. Although not a direct use of measurement, the term hectometer still is in active use this way.
guyrocketIs deca-yards (decayards?) a word? Centayards?
If not, should they be words?
olicvbSeems like the closest to 10 units of yards is rope? Gunter’s chain?
Gunter's chain is 20.1m, so half a Gunter is approximately a decameter; a rope would be unwieldy as it'd be one and two thirds rope per decameter.
In Austria, some things like ground beef are ordered in decagrams. My wife used to get confused responses when she tried that in Germany :).
OptimusPhillipAs an American who has gotten very used to metric units in studying engineering, the general rule I picked up is that you typically only change units every three orders of magnitude. So 8 decameters would typically be expressed as 80 meters, maybe 0.08 kilometers. Decameters and hectometers are a thing, but they’re not common units. Even centimeters don’t see much use compared to millimeters.
That might be true for science but in everyday use centimeters, hemkograms and the like are more common
for everyday use … hektograms and the like are more common
[citation needed]
We usually go for the 3 order rule, but in the case of areas and volumes, for dimensional reasons, dam and hm make it into the three order rule. Dm (or dam) is not common but dam^3 has some uses, the same goes for hm, hm is used for only special situations (like meassuring train distances), but hm^2 is almost globally used for big chunks of land. Also, with hm^2, we always keep the unit, so for example, Parque Nacional Iguazú in Argentina has 67620 hm^2 (also ha or hectarea).
I’m also an engineer and I generally despise imperial units, but I have to say that inchs are pretty handy and the 1 in = 25,4000… mm relation is pretty neat
In Poland: decimeters are sometimes used (I have been ordering cut sheet metal priced by square decimeters) , I have not seen decameters in use. Hectopascales are often used in weather reports. Decagrams are often used when buying food where these amounts make most sense (meat, candy).
The 'more exotic' prefixes are usually only used with some specific SI units and in very specific contexts.
You use decagrams for food? I’ve only ever seen hektograms being used for that
I used to do land surveying in Canada and we’d use “decs” for decimetres when laying out points. You’d put down the rod, they’d tell you something like “dec and a half left” then you’d move closer and it’d be “two cents right” and you’d be even closer and then it’s like “3 mils right.” Then you’d take the shot and they’d tell you how much closer or farther you’d have to go to get the point. If you were way off to the point where you might have tens of metres, usually for rough layout we’d rarely use “dee-kays” for dekameters, but typically it would be just “30 metres north”.
These two specifically - I don’t think I’ve ever seen them.
Hectoliters are sometimes used e.g. for measuring beer consumption for an event, decimeters in some informal contexts, some country commonly describe drink sizes in centiliters or deciliters.
Centimeters are common, I’d say more common than millimeters in informal context.
In France “hectare”( 100m²) is used for fields and burning forest. Beside that deca or hectometers are never used
thanksforallthefishHectares are also standard in Australia
Nz too apart from old people who still use acres.
10.000 m2
Mb it’s 100m*100m
Pandoras_Can_OpenerGerman with a scientific background. I can deduce the meaning of the words but I’ve never seen them used. I’m not even sure these units of measurement were mentioned when these were discussed. Most stuff is ton, kilogram, gram, miligram, microgram; kilometer, meter, centimeter, milimeter, micrometer. Rarely decimeter are thrown around.
mrmuleSweden uses decimeters and deciliters
And hectograms. We just shorten it to ”hekto” though. It’s how we buy stuff from the deli. ”2 hekto salami please”.
PlutoniumAcidThe silly Austrians would ask for “20 Deka Salami, bitte.” It’s weird.
Sweden is also the only country in the world to have a sensible use of the word ‘miles’ (or ‘mil’ in Swedish):
10km = 1 mil
They use this a lot when speaking of travel distances longer than 20km.
PeppycitoIn Canada anything over 20km is referenced as time. “it’s about an hour drive”
Sweden also uses mil for distance, which is 10^4 meters (10 km)
In metric units, we primarily use the x1000 or x1/1000 steps, with a few notable exceptions. We use the centimeter (1cm = 1/100m) quite commonly, the centiliter (1cl = 1/100l) is also relatively common with drinks, and, IIRC, the Austrians use the deka, short for decagram (1dg = 10g).
It depends on the situation, sometimes they are really handy but most of the time we stick to kilo, centi and mili.
Where i live, Hecto (100x) is used, for example to measure distances and areas for big properties. 1 hectometro equalls 100 m, or 1 hectarea (hm^2) equals 10000 m^2.
Also, it is widely use for pressure, cause 1 atm is 1013 hPa
Decameters are used but for special situations, like quantifying natural gas consumption
I’m American, but follow mostly Europeans and Canadians online and use metrics in my own head just because it makes more sense.
I gather that the deca-/deka- and hecto- (along with a few other) prefixes are similar to imperial furlongs, leagues, stones, barrels, kegs, and hogsheads: They exist, but no one uses them outside of very specialized circumstances.
N1cknamedWell, not exactly. Those imperial units are all a unique measurement that one would have to learn to use. The SI prefixes meanwhile are simply powers of 10. Deca means 10, hecto means 100, kilo means 1000. Decameter literally means 10 meter. And so people just end up saying that instead, because it’s easier. But in some situation where you’re frequently dealing with 10s of meters it might be easier to use decameters.
The system also provides prefixes for extremely large or extremely small units. You’ll be hard pressed to find anyone referring to a ronnameter (10^27 meter). But it’s there if you ever need it, because it’s again just a power of 10. While megameter (1000km) is pretty much never used, megahertz is very common. SI simply provides a unified system and we can apply it in whatever way is most practical.
“Similar” = “not exactly”
Do you have a point? Or is this just continuing your pattern of half-baked smartass comments for the sake of half-baked smartass comments? Because we all give a damn what you think.
I think the point op is making is with ‘stones’ or ‘furlongs’ etc you need to already know what that unit represents to make sense of it.
With metric units, even the infrequently used increments can be reasoned out just from the name of the unit, as it’s a standard prefix in fixed multiples of 10, not a random number that must be learnt.
So they’re neither similar or exactly the same in principle really.
In fairness, you also need to already know what grams, meters, and seconds represent. And the prefixes are hardly self-explanatory. You’d still have to look up the unfamiliar ones. Just like you have to look up nautical miles or knots.
Well with metric there are alot less words you need to know to use them I think is the point of difference.
Like you need to know that a stone represents a weight, and that that weight is 14 pounds. What’s a pound? Oh it’s 12 ounces. None of those words are the same out of context but all describe a weight and the size of the weight.
In metric you only need to know that grams measure weight, metres length, litres volume. Then everyday use is normal prefix increments like OP said.
And again the prefixes apply consistently across units too, so a millimetre, a millilitre or a milligram will all be the same fraction of their base.
It seems that we’re both fans of SI units. I’m not arguing against metrics. But you still have to know what the words mean, and to do that, you have to look them up. You can also look up fleebles if necessary.
And not to pick nits, but grams measure mass, not weight. Weight is newtons. A pound is 16 ounces, not 12. A lot of the measures, such as weights and volumes, use powers of two: 2, 4, 8, 16, 32, 63, 128.
It’s easy to get imperials confused. That’s why I’d rather call a pound about a half kilo in my head and be done with it.
Haha, I promise I didn’t intentionally make my point about how obscure imperial units are in conversion. I looked it up but clearly transcribed wrong!
LOL! I had to look it up too, and I was raised with them. I know the dozen or so that I use everyday, and that’s about all. Volumes are especially bonkers. I can never remember how many cups in a gallon or how many ounces in a pint.
In America, I’ve seen nurses and diabetics use deciliters in reference to medication or concentration before.
Deci is 0.1 and that gets used frequently, deka is 10 and never gets used at all, except in Austria when grocery shopping at the deli counter. 🤷
Hekto is 100 and similarly never gets used, not even by Austrians.
Norwegian here, hekto gets used when buying fresh meat or fish
Hecto is used in NL for road marks. You’ll find a sign every hectometer on the highway. Makes it easy to tell where you are.
Deciliters are not infrequently used in recipes here as well. I’ve never seen decameters or hectometers used by anyone.
I think hectare, decibel are few of them?