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Data transfer rate is the speed that a sure amount of data is transferred over a given catamenia of time. You lot might want to know the transfer rate if you're downloading something online or transferring information from one source to some other. Offset, catechumen your units and so the file size and transfer speed are in either bits or bytes with the same prefix (kilo, mega, giga, or tera). And then, plug your numbers into the equation S = A ÷ T in which A is the corporeality of data and T is the transfer time to solve for S, the speed, or rate, of transfer. You can also determine the amount of data or the transfer fourth dimension if you know one of the variables plus the speed of transfer.

1
Find the units regarding the file size. File sizes may be given in $.25 (b), bytes (B), Kilobytes (KB), Megabytes (MB), Gigabytes (GB), or even Terabytes (TB).^[1]
- Pay attention to whether the letters are upper case or lower case too. For instance, a flake is denoted with a lowercase "b" while a byte is denoted with an uppercase "B".
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Notation the units that reference the transfer speed. Transfer speeds might be provided in bits per second (bps), bytes per second (B/southward), Kilobytes per second (KB/south), Megabytes per second (MB/s), or Gigabytes per second (GB/s).^[ii]

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Convert the units to either $.25 or bytes and make certain they accept the aforementioned prefix. Earlier you employ the transfer rate equation, ensure you lot are using the same units for the size and speed. Don't worry virtually the time units for at present.^[3]
- viii bits (b) = 1 byte (B); turn $.25 into bytes past dividing by 8, or convert bytes to bits past multiplying by 8.
- 1,024 bytes = 1 Kilobyte (KB); convert bytes to Kilobytes by dividing by 1,024 or turn Kilobytes into bytes by multiplying by 1,024.
- 1,024 Kilobytes = i Megabyte (MB); modify Kilobytes into Megabytes by dividing by 1024 or convert Megabytes into Kilobytes by multiplying by ane,024.
- 1,024 Megabytes = one Gigabyte (GB); convert Megabytes into Gigabytes by dividing by 1024 or turn Gigabytes into Megabytes past multiplying by 1,024.
- one,024 Gigabytes = ane Terabyte (TB); modify Gigabytes into Terabytes by dividing by 1024 or convert Terabytes into Gigabytes past multiplying by 1,024.
4
Convert between hours, minutes, and seconds as needed. As you lot know, there are threescore seconds in 1 minute and lx minutes in 1 60 minutes. To convert from seconds to minutes, split up by 60. To convert from minutes to hours, separate by lx. To convert from hours to minutes, multiply by 60. To convert from minutes to seconds, multiply past 60.^[four]
- To convert from seconds to hours, separate past 3,600 (60 10 60). Or, convert from hours to seconds past multiplying by 3,600.
- Mostly, the speed is denoted in seconds. If you accept very many seconds, though, such as for large files, you tin convert to minutes or fifty-fifty hours.
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ane
Calculate the transfer speed by dividing the amount of information by the transfer time. Plug the amount of information (A) and transfer time (T) to solve for the charge per unit, or speed (S), into the equation S = A ÷ T.^[5]
- For example, you might accept transferred 25 MB in 2 minutes. Outset, convert 2 minutes to seconds by multiplying 2 by 60, which is 120. So, Due south = 25 MB ÷ 120 seconds. 25 ÷ 120 = 0.208. Therefore, the transfer speed is 0.208 MB/s. If you lot desire to plough this into Kilobytes, multiply 0.208 by 1024. 0.208 x 1024 = 212.9. And so, the transfer speed is also equal to 212.9 KB/s.
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Divide the corporeality of data by the transfer speed to find the transfer time. If you want to solve for the transfer time (T) instead, input the corporeality of data (A) and the rate or speed (South) of transfer into the equation T = A ÷ S.^[6]
- For instance, say you transferred 134 GB at a rate of 7 MB/due south. Outset, catechumen GB to MB so y'all're working with the aforementioned units in each role of the equation. 134 x one,024 = 137,217. So, you transferred 137,217 MB at a rate of 7 MB/due south. To solve for T, carve up 137,217 by 7, which is xix,602. Therefore, it took xix,602 seconds. To convert this to hours, divide by 3,600, which is v.445. In other words, information technology took 5.445 hours to transfer 134 GB at a charge per unit of 7 MB/s.
- If you lot want to utilize hours and minutes, split out the whole number and decimal: you have 5 hours and 0.445 hours. To convert 0.445 hours to minutes, multiply past sixty. 0.445 x 60 = 26.seven. To convert the decimal into seconds, multiply it by 60. 0.7 x lx = 42. Altogether, it took v hours, 26 minutes, and 42 seconds.
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Multiply the transfer time past the transfer speed to detect the amount of data transferred. To figure out how much information was transferred, use the equation A = T 10 South, in which A is the amount of data, T is the transfer time, and South is the speed or rate of transfer.^[7]
- For case, you tin figure out how much information was transferred in 1.v hours at a rate of 200 bps. First, convert hours to seconds by multiplying by 1.five by 3,600, which is 5,400. And then, A = 5,400 seconds x 200 bps. A = 1,080,000 bps. To catechumen to bytes, dissever by 8. 1,080,000 ÷ viii = 135,000. To catechumen to Kilobytes, separate by 1,024. 135,000 ÷ 1,024 = 131.84. Therefore, 131.84 KB of data was transferred in 1.5 hours at a rate of 200 bps.
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Add together New Question

Question

How practice I calculate the time taken to transfer the files?

Say a file of 640,000 bits transfers by the rate of, say, 64 kbps, the time taken is 640000 / (64 10 thousand) = 10 seconds.
Question

How exercise I calculate information transfer rates?

For example, l Mbps or "50 million a 2d" is not fifty Megabytes per second, just rather 50 Megabits per 2d. And then in order to calculate the transfer rate of a file size we need to convert the size to bits, nevertheless, you tin can't just say that 2 Gb x 8 will give you the number of $.25 in the file.
Question

How do I calculate the information transfer rate given size and baud charge per unit?

ii kbytes = 2048 bytes. Transmission of a byte requires: one start bit; viii $.25 = actual byte; 1 scrap parity; and two bits finish for a total of 12 bits. The baud is 2048 * 12 = 24576 baud.
Question

How do I tell what my data transfer rate is in bytes?

One way this can be washed is by a elementary equation using how much data has been transferred and how long it took in total to transfer that data. The equation is: "DATA TRANSFERRED" divided past "Fourth dimension TAKEN."
Question

What formula should I use to calculate how long it will take to transfer a 1GB file onto a USB 3.0?

You are given A by information technology stating "1GB" and Due south because the 1Gb is being transferred onto a USB3.0. Therefore, yous should be able to use T = A/South. Don't forget to alter 1GB into GB before you lot practice the division.