📏 Bytes to Bits Converter

Convert bytes (B) to bits (bit) instantly, with the formula, a worked example and a conversion table.

Quick answer: 1 byte (B) = 8 bits (bit). Formula: bit = B × 8.

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Bytes to Bits Converter inputs

Result

1 B =

8 bit

bit = B × 8

1 byte = 8 bit · bit to B

Bytes to Bits conversion table

Bytes (B)Bits (bit)
0.1 B0.8 bit
0.5 B4 bit
1 B8 bit
2 B16 bit
3 B24 bit
5 B40 bit
10 B80 bit
20 B160 bit
25 B200 bit
50 B400 bit
100 B800 bit
1,000 B8,000 bit

Other data conversions

B to bitB to KBB to MBB to GBB to TBB to MiBB to GiB

How to convert bytes to bits

Multiply the number of bytes by 8 to get bits: bit = B × 8.

Example: 5 B = 40 bit.

The byte (B) and the bit (bit) are both units of data. Need the opposite direction? Use the bit to B converter.

Popular conversions

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Metric and imperial units

The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.

Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.

This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.

Frequently asked questions

How many bits are in a byte?

1 byte = 8 bits.

How do I convert bytes to bits?

Use the formula bit = B × 8. For example, 5 B = 40 bit.

How do I convert bits back to bytes?

1 bit = 0.125 bytes. Use the bit to B converter linked on this page.

Are these conversions exact?

Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.