FORMULA
How to convert
bit = B × 8Example: 10 B = 80 bit.
B → BIT
Bytes to Bits
Convert bytes to bits with an exact, deterministic calculation.
LIVE CONVERSIONDECIMAL ENGINE EXACT_
1 B = 8 bit
MULTI-CONVERT
QUICK ANSWER
1 Byte
8 bit
REFERENCE TABLE
Byte to Bit
| bytes | bits |
|---|---|
| 1 B | 8 bit |
| 5 B | 40 bit |
| 10 B | 80 bit |
| 25 B | 200 bit |
| 50 B | 400 bit |
| 100 B | 800 bit |
ABOUT THIS CONVERSION
Convert bytes to bits
This page converts bytes (B) to bits (bit). Convertor4U first interprets the input using Byte's definition, then expresses the same quantity in Bit. The result is calculated from the stored factor and offset definitions, not from a rounded lookup table.
Real-world example
For checking a download, storage device, memory allocation, or backup size, an input of 256 B converts to 2048 bit. Keep extra digits while calculating, then round only the final value to the precision the task actually needs.
Rounding and precision
Keep enough precision to explain capacity differences, but whole MB or GB often suffice for user-facing estimates. Transfer-time calculations also need protocol overhead and actual throughput, not only a storage-unit conversion.
Regional context
These are international technical conventions rather than regional units. Usage is inconsistent, however: some interfaces display a binary quantity but label it GB instead of GiB. Check the stated prefix definition.
Common mistake
Uppercase B means byte and lowercase b means bit; also distinguish decimal GB from binary GiB.
Editorial method
Definitions and sources are listed below. Calculations retain more precision than the default display and round only for presentation.
USEFUL ANSWERS
B to bit FAQs
How do I convert bytes to bits?
Enter the B value in the calculator. It applies the stored factor and offset definitions and returns the equivalent in bit; the formula and common-value table are shown on this page.
Is the B to bit conversion exact?
Defined measurement relationships are calculated with decimal arithmetic from stored standards. The displayed answer may be rounded for readability. Currency results instead depend on the dated reference rate shown.
How many decimal places should I keep?
Keep enough precision to explain capacity differences, but whole MB or GB often suffice for user-facing estimates. Transfer-time calculations also need protocol overhead and actual throughput, not only a storage-unit conversion.
What should I check before using the result?
Uppercase B means byte and lowercase b means bit; also distinguish decimal GB from binary GiB.
FROM UNIT
Byte
A byte is a digital information unit consisting of eight bits. It measures digital information; decimal and IEC binary prefixes remain distinct.
IEC binary prefixes ↗Definition verified 14 August 2026TO UNIT
Bit
The bit is the basic unit of digital information and can represent one of two binary values. It measures digital information; decimal and IEC binary prefixes remain distinct.
IEC binary prefixes ↗Definition verified 14 August 2026Content reviewed by Convertor4U Editorial Team · 16 August 2026 · Report an error on this page