The bit
A bit is the smallest unit of digital information — a single 0 or 1. Eight bits make one byte. The bit is the natural unit for bandwidth (most network speeds are quoted in bits per second, not bytes).
5 Bits to Bytes
5 bit = 0.625 B (bit → byte)
5 bit = 0.625 B
5 bits (bit) equals 0.625 bytes (B). The conversion uses the exact factor 0.125: 5 × 0.125 = 0.625.
Formula
Bytes = Bits × 0.125Quick
5 bit in context
How 5 bits compares to its arithmetic neighbours, converted to bytes.
| Relation | bits | bytes |
|---|---|---|
| ÷10 | 0.5 bit | 0.0625 B |
| ÷2 (half) | 2.5 bit | 0.3125 B |
| ×1 (this value) | 5 bit | 0.625 B |
| ×2 (double) | 10 bit | 1.25 B |
| ×5 | 25 bit | 3.125 B |
| ×10 | 50 bit | 6.25 B |
When to use bits → bytes
Bits to bytes divides by 8 — the byte has meant an 8-bit group since the IBM System/360 standardised it in the 1960s, though early machines used byte widths from 4 to 9 bits. Network speeds are quoted in bits per second (a 100 Mbps connection), while file sizes are quoted in bytes, so this conversion is the one that trips people up when a '100 Mbps' plan turns out to download at 12.5 MB/s, not 100 MB/s — divide the advertised bit rate by 8 to get the realistic byte throughput.
Embedded engineers reach for this when sizing a UART or SPI frame: an 8N1 serial link running at 9600 bit/s carries roughly 1200 payload bytes a second once the divide-by-8 is applied, though start and stop bits mean the real throughput is slightly lower than the naive figure. A 64-bit CPU register is 8 bytes wide. Datasheets almost always quote bus widths and baud rates in bits, so firmware code has to do this division before allocating a buffer.
How to convert bits to bytes
Take your value
Start with your value in bits.
Multiply by 0.125
Multiply the bit value by 0.125. This is the exact conversion factor from bits to bytes.
Read the result
The product is your value in bytes. For example, 5 bit × 0.125 = 0.625 B.
Conversion formula
The exact factor from bits to bytes is 0.125.
Bytes = Bits × 0.125
Bits to Bytes conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Bits (bit) | Bytes (B) |
|---|---|
| 1 bit | 0.125 B |
| 8 bit | 1 B |
| 16 bit | 2 B |
| 64 bit | 8 B |
| 100 bit | 12.5 B |
| 256 bit | 32 B |
| 500 bit | 62.5 B |
| 512 bit | 64 B |
| 1000 bit | 125 B |
| 1024 bit | 128 B |
| 2000 bit | 250 B |
| 2048 bit | 256 B |
| 4096 bit | 512 B |
| 5000 bit | 625 B |
| 8192 bit | 1024 B |
| 10000 bit | 1250 B |
| 16384 bit | 2048 B |
| 25000 bit | 3125 B |
| 32768 bit | 4096 B |
| 50000 bit | 6250 B |
| 65536 bit | 8192 B |
| 100000 bit | 12500 B |
| 131072 bit | 16384 B |
| 250000 bit | 31250 B |
| 500000 bit | 62500 B |
| 524288 bit | 65536 B |
| 1000000 bit | 125000 B |
| 1048576 bit | 131072 B |
| 2000000 bit | 250000 B |
| 5000000 bit | 625000 B |
| 10000000 bit | 1250000 B |
| 50000000 bit | 6250000 B |
| 100000000 bit | 12500000 B |
| 500000000 bit | 62500000 B |
| 1000000000 bit | 125000000 B |
| 2000000000 bit | 250000000 B |
| 5000000000 bit | 625000000 B |
| 10000000000 bit | 1250000000 B |
| 50000000000 bit | 6250000000 B |
| 100000000000 bit | 12500000000 B |
| 500000000000 bit | 62500000000 B |
| 1000000000000 bit | 125000000000 B |
| 2000000000000 bit | 250000000000 B |
| 5000000000000 bit | 625000000000 B |
| 10000000000000 bit | 1250000000000 B |
| 100000000000000 bit | 12500000000000 B |
| 1000000000000000 bit | 125000000000000 B |
| 10000000000000000 bit | 1.2500 × 10^15 B |
| 100000000000000000 bit | 1.2500 × 10^16 B |
| 1000000000000000000 bit | 1.2500 × 10^17 B |
Real-world reference
A boolean flag is 1 bit. A 4K HDR stream uses around 25 megabits per second. In bytes, that gives you: 1 bit = 0.125 B, 10 bit = 1.25 B, 100 bit = 12.5 B.
Frequently asked questions
- What is 5 bits in bytes?
- 5 bits equals 0.625 bytes.
- What is half of 5 bit in bytes?
- Half of 5 bit is 2.5 bit, which equals 0.3125 bytes — for a whole-number split, use the calculator above.
- What is 10 bit (double 5) in bytes?
- 10 bit equals 1.25 bytes — exactly twice the 0.625 bytes you get from 5 bit, since the conversion is linear.
- Is 5 bit a lot in bytes?
- 5 bit converts to 0.625 bytes. That's less than a single byte.
- How is 5 bit to B calculated?
- 5 bit × 0.125 (the exact bit-to-byte factor) = 0.625 B.
About the bit and the byte
The byte
A byte is 8 bits — the smallest addressable unit on virtually every modern computer. ASCII text is one byte per character; UTF-8 ranges from 1 to 4 bytes per character.