volume terminology
 

[Closed] volume terminology

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I'm going to blame 2 weeks off, but seem to have forgotten / be doubting basic volume terminology

20m3 (superscript '3') = 8,000 cubic metres (20m x 20m x 20m) and not 20 cubic metres.

 
Posted : 06/01/2022 4:46 pm
 Sui
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20m3 could be 10x2x1

20x20x20 would equal 8000

 
Posted : 06/01/2022 4:49 pm
 Sui
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i work with chemicals so everything is done in litres, cubes and tonnes

 
Posted : 06/01/2022 4:50 pm
 Sui
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ill redo that,
20m3 is 20,000 litres in liquid terms

8000 cubic meters = 8000m3 - that would be 8,000,000 litres

 
Posted : 06/01/2022 4:52 pm
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Posted : 06/01/2022 4:52 pm
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20m3 is twenty cubic metres.

Or 30 years in construction is going to cost me a lot shortly 😖

 
Posted : 06/01/2022 4:52 pm
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20m^3 is 20 cubic metres and 20^3m is 8000 metres isn’t it?

 
Posted : 06/01/2022 4:53 pm
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And twenty metres, cubed is 20x20x20 metres which is 8,000m3

 
Posted : 06/01/2022 4:54 pm
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If someone asked me for 20m³, I'd expect they wanted enough material to fill a hole 20m long, 1m wide and 1m deep.

 
Posted : 06/01/2022 4:55 pm
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marcus

20m3 (superscript ‘3’) = 8,000 cubic metres (20m x 20m x 20m) and not 20 cubic metres.

Nope. 20m3 is X*Y*Z=20m3

 
Posted : 06/01/2022 4:58 pm
 IHN
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The standard comparator for volume(*) is Olympic Swimming Pool.

An Olympic Swimming Pool = 2,500 cubic metres.

So what you have = 8/2.5 = 3.2 Olympic Swimming Pools

*for length, it's London Bus, for area it's The Size of Wales.

 
Posted : 06/01/2022 5:01 pm
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20m^3 is not the volume of a twenty metre cube

 
Posted : 06/01/2022 5:04 pm
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Rubber Buccaneer - That makes sense. Would we all agree ?

 
Posted : 06/01/2022 5:10 pm
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20m3 ≠ 20 cubic metres!

 
Posted : 06/01/2022 5:17 pm
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20m3 ≠ 20 cubic metres!

It most certainly is in my world, and is used as such day in day out.

 
Posted : 06/01/2022 5:21 pm
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i scoff cake yes it does

rubber buccaneer (and stumpy and onzadog) is correct

although really you should have a space between the number and the unit

20 m^3 means 20 metres-cubed which is English parlance is twenty cubic metres

If you mean 20 m by 20 m by 20 m that would be 8000 m^3 or 20^3 m^3.

 
Posted : 06/01/2022 5:21 pm
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Indeed, 20m3 is 20 cubic metres. It is not the volume of a cube of side 20 metres, which would be 8000m3.

Trust me I’m a doctor (of engineering). Don’t get to say that often enough sorry 🙂

 
Posted : 06/01/2022 5:24 pm
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20 m3 = 0.008 Olympic Swimming Pools

or

20 m3 = 3450.5 footballs

or

20 m3 = 38197.1 grapefruits

or

20 m3 = 109134.6 chicken's eggs

or

20 m3 = 238731.9 wallnuts

Source: https://www.theregister.com/Design/page/reg-standards-converter.html

edit: Tried to use superscript 3s but failed. 🙁

 
Posted : 06/01/2022 5:24 pm
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@goldfish24 20 to the power of 3 is indeed 8,000 and that's what I'd assume 20m3 meant.

 
Posted : 06/01/2022 5:32 pm
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it means whatever the person asking for it wants unfortunately 🙂

see also biannually

 
Posted : 06/01/2022 5:33 pm
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Anyway, 20m^3 of concrete is quite a big patio. Did you fall out with all the in-laws over Christmas?

 
Posted : 06/01/2022 5:43 pm
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It's almost 50 tons of concrete. That's a lot of wheelbarrows!

 
Posted : 06/01/2022 5:50 pm
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@goldfish24 20 to the power of 3 is indeed 8,000 and that’s what I’d assume 20m3 meant.

Gotcha, I understand the confusion.

The difference is the position of the superscript 3 that none of us can manage to actually superscript on this forum.

20m^3 reads as 20 metres cubed.
The unit of metres is cubed. Ie the unit is metres cubed and the quantity is 20 of them.

20^3m reads as 20 cubed metres.
20 cubed is 8000. So it’s 8000 metres. Linear metres, not cubic metres.

 
Posted : 06/01/2022 5:52 pm
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What's that in cubic Kylies?

 
Posted : 06/01/2022 5:54 pm
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@goldfish - yes I see your point; M3 should be understood as a unit, not a formula.

 
Posted : 06/01/2022 5:55 pm
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Bingo you got it

 
Posted : 06/01/2022 6:00 pm
 loum
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20m³ is 3 wagons of concrete

20³ m³ is about 1200 wagons of concrete, or 100 wagons on turnaround for a double shift.

 
Posted : 06/01/2022 6:07 pm