Bad Unit?

Bad Unit? - Long Ton v. Tonne v. Short Ton v. British Ton... - Messages

#1 Posted: 2025/6/5 21:10:38
⚜ Kenny Lemens, P.E. ᵂᴵ

⚜ Kenny Lemens, P.E. ᵂᴵ

85 likes in 177 posts.

Group: User

Greetings,

I just want to verify something quick: is 'tonne calibrated to the wrong value? If this is supposed to be a Long Ton, then I would've thought the value to be 2,240 lbm, but I'm seeing it as 2,204 lbm.

May this be of Good Help;
⚜ Kenny Lemens, P.E. ᵂᴵ
"No matter where you go, there you are." -Buckaroo BanzaiHotkeys: https://en.smath.com/forum/resource.ashx?a=45771&b=2
#2 Posted: 2025/6/6 08:33:10
Davide Carpi

Davide Carpi

1,435 likes in 2,913 posts.

Group: Moderator

tonne in SMath it is defined as 10^3 kg that should be 2204,62 lbm

immagine.png

Wolfram: https://www.wolframalpha.com/input?i=1000+kg
Google: https://www.google.com/search?q=1000+kg+to+lbm
Edited 2025/6/6 08:34:20
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Andrey Ivashov 2025/6/6 22:01:11, ⚜ Kenny Lemens, P.E. ᵂᴵ 2025/6/6 22:07:10
#3 Posted: 2025/6/6 22:06:55
⚜ Kenny Lemens, P.E. ᵂᴵ

⚜ Kenny Lemens, P.E. ᵂᴵ

85 likes in 177 posts.

Group: User

Greetings,

You are correct; tonne is defined correctly. The "long ton (British ton)" is 2,240lbs; I was under the misunderstanding the British Ton and the Metric Tonne were the same unit of mass.

May this be of Good Help;
⚜ Kenny Lemens, P.E. ᵂᴵ
"No matter where you go, there you are." -Buckaroo BanzaiHotkeys: https://en.smath.com/forum/resource.ashx?a=45771&b=2
#4 Posted: 2025/6/7 10:27:55
Davide Carpi

Davide Carpi

1,435 likes in 2,913 posts.

Group: Moderator

Better to always double check the units conversions .

There's also a short ton aka US ton; both short and long tons are defined as 1 ton =20 hundredweight, but the hundredweight is defined differently in US (100 pounds) and in Britain (112 pounds).
Edited 2025/6/7 10:28:14
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