Hi,

i need to calculate download time for file which is 4GB and the speed is 43.2 kbps.

i know i have to divide file size by the speed and to change GB to KB but not sure how to change GB to kbps?

Kb means 1000 bytes

MB = 1000 KB
GB = 1000 MB = 1000000Kb

so 4 GB / 43.2 kb/s = 1000000/(43.2 kb/sec)
= 23148.1 seconds

divide by 60 to get into minutes, then by 60 again to get it into hours.

File sizes are given in bytes, while download speeds are given in bits.

4 GB = 4*1024 MB = 4*1024^2 KB = 4*1024^3 Bytes - 4*1024^3*8 bits.

43.2kbps = 43.2*1000 bits per second.

The time required is 795.364s, or 220.935 hours.

Note that 43.2kbps is quite a low bandwidth.

To calculate the download time, you need to follow these steps:

1. Convert the file size from GB to KB.
2. Convert the speed from kbps to KBps (kilobytes per second).

Let's break down each step:

1. Converting GB to KB:
- 1 GB is equal to 1024 MB.
- 1 MB is equal to 1024 KB.

To convert GB to KB, multiply the file size in GB by (1024 * 1024). In this case, the file size is 4 GB, so the calculation would be:
4 GB * (1024 * 1024 KB/GB) = 4,194,304 KB

2. Converting kbps to KBps:
- 1 kbps (kilobit per second) is equal to 0.125 KBps (kilobyte per second).
(Note: There are 8 bits in 1 byte, so to convert kbps to KBps, you divide by 8.)

To convert kbps to KBps, divide the speed in kbps by 8. In this case, the speed is 43.2 kbps, so the calculation would be:
43.2 kbps / 8 = 5.4 KBps

Now that you have the file size in KB (4,194,304 KB) and the speed in KBps (5.4 KBps), you can calculate the download time.

Divide the file size by the speed to get the download time in seconds:
4,194,304 KB / 5.4 KBps = 775,506.67 seconds

To convert the download time from seconds to minutes or hours, you can divide it further:
- To convert seconds to minutes, divide by 60.
- To convert seconds to hours, divide by 3600 (60 seconds per minute * 60 minutes per hour).

In this case, the download time is approximately 775,506.67 seconds, which is equivalent to:
- Approximately 12,925.11 minutes
- Approximately 215.42 hours

So, the download time for a 4GB file at a speed of 43.2 kbps is approximately 12,925.11 minutes or 215.42 hours.