Hard drive size linux mint

Is it normal that gparted ,disks ,and conky manager shows different sizes for the partitions on my laptop?.What is the reason for the differences?
thanks

 

No biggie. Just different ways of calculation from bytes to MB to GB.

 

Isnt there a difference of 19 gig on partition 3 though?.Seems to be quite a big difference.Gparted shows 251.45 gig whereas disk shows 270 gig and conky managers
offering i dont really understand at all.

 

I think they meant 1000 MB = 1 GB vs 1024 MB = 1 GB.

 

The 1024 vs 1000 factor applies at byte to KB, KB to MB, and MB to GB.

So 1.024^3 = 1.074

And 1.074 x 251.45 = 270

 

I didn't do the math but the 19 GB difference is likely what @J_L posted. It's been a long-term standards discrepancy --- decimal vs. binary. Explanation here -- http://blog.codinghorror.com/gigabyte-decimal-vs-binary/

Edit: @mirimir did the math.

 

Wow I didn’t realize how much difference the few kbs make.The link posted about hd manufactures using the larger of the two calculations is interesting too.Reminds me of audio using rms and pmpo values.
thanks everyone for explanation

 

The good thing is that these days the Kernel actually displays the size as GiB, so it's really easy to create partitions with fdisk BEFORE comencing the install process:

Code:

fdisk /dev/sdX

When you're asked about the ending sector, just say "XG", where X is the number in GiB.

Code:

.......
ending sector (default 981298398):
your choie: 60G