network bandwidth question

[Pouncer]

Hello guys, just want to ask something to you guys.

If I have a link with bandwdith 3Mbps (meaning that 3 million bits can be transmitted over this link every second), then how many seconds would it take to transmit 5Mb (Megabytes) over this link?

Can someone show me the workings pls, thanks in advance guys

[Ivenesco]

5Mb (Megabytes) = 40 Megabits
40 mb / 3 mbps = 13 & 1/3 seconds.
But, you want to download it, or upload? Most often upload speed is lower than download.

[Pouncer]

Thanks for the reply.

5Mb (Megabytes) = 40 Megabits
40 mb / 3 mbps = 13 & 1/3 seconds.
But, you want to download it, or upload? Most often upload speed is lower than download.

I'm a bit confused now.

How is 5MB equal to 40Megabits?
I assumed you think 1MB = 1000KB, but its 1024 right?

1MB = 1024KB = 1024 bytes = 8192 bits

so 5MB = 5120KB = 5,242,880 bytes = 41,943,040 bits

41,943,040 / 3,000,000 = 13.98 secs right?

[Ivenesco]

Ouh. You need very precise result... So, yes: 5MB = 41,943,040 bits. And your calculation seems to be correct. (Some time ago 1 Megabit was equal to 1024 * 1024 bits, but now it's decimal 1000 * 1000)