Bandwidth
Enter the size of the file and the link speed and compute the transfer time, minding bits vs bytes and decimal (SI) vs binary (IEC) units. Includes overhead factor, inverse mode and unit converter.
Transfer time
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In seconds
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Effective throughput
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after applying overhead
Time —
Seconds —
The size in other units
| Unit | Value | Base |
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The speed in other units
| Unit | Value | Note |
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How it is calculated · bits, bytes and units
1. Network speeds are measured in
bits per second; files in bytes.
1 byte = 8 bits.
2. time (s) = size_in_bits / speed_in_bps,
where size_in_bits = size_in_bytes × 8.
3. Decimal (SI, base 1000): kB=10³ B,
MB=10⁶, GB=10⁹. Binary (IEC, base 1024):
KiB=2¹⁰ B, MiB=2²⁰, GiB=2³⁰.
4. Overhead multiplies time by
(1 + overhead): 10 % overhead takes 10 % longer.
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