Kilobyte (kB)

Decimal (SI) Unit | 1 kB = 103 or 1000 Bytes
  • b
  • N
  • B
  • kb
  • Kib
  • kB
  • KiB
  • Mb
  • Mib
  • MB
  • MiB
  • Gb
  • Gib
  • GB
  • GiB
  • Tb
  • Tib
  • TB
  • TiB
  • Pb
  • Pib
  • PB
  • PiB
  • Eb
  • Eib
  • EB
  • EiB
  • Zb
  • Zib
  • ZB
  • ZiB
  • Yb
  • Yib
  • YB
  • YiB
"Kilobyte (kB) Comparison Diagram"

One Kilobyte is 103 or 1000 Bytes. Kilobyte is a decimal unit defined as per SI standard. The unit symbol for Kilobyte is kB. Kilobyte is not same as Kibibyte (KiB) that contains 1024 bytes. 1000 Kilobytes = 1 Megabyte (MB).

Related Units:

Kilobit (kb) Kibibit (Kib) check Kilobyte (kB) Kibibyte (KiB)
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Kilobyte - Quick Overview

Below is a quick overview of the Kilobyte (kB), including its technical definitions, common real-world uses, and everyday file size examples.

Unit Name:
Kilobyte
Unit Symbol:
kB
Base System:
Decimal (SI)
Exponential Value:
103 or 1000 Bytes
Exact Value:
1,000 Bytes
8,000 Bits
Binary Counterpart:
Kibibyte(KiB)
Approximate Size (Binary):
≈ 0.9766 KiB
Applications & Context:
Small text files
Email messages
Web page source code
Configuration files
Practical Examples:
Plain text page: ~4 kB
Small icon image: ~10 kB
CSV data row: ~1 kB
Related Conversions:
kB → BytekB → MBkB → KiB

Kilobyte (kB) vs Kibibyte (KiB)

1 kB = 0.9765625 KiB
1 KiB = 1.024 kB

Kilobyte (kB) and Kibibyte (KiB) are both units used to measure digital data, but they belong to different measurement systems and are used in different contexts. Kilobyte is part of the decimal (base-10) system and is commonly used to describe file sizes and storage capacity, while Kibibyte belongs to the binary (base-2) system and is often used in computing and memory-related calculations. Understanding the difference between these units helps avoid confusion when comparing data sizes across systems.

Name
Kilobyte
Kibibyte
Symbol
kB
KiB
Size
Smaller
Larger
Value
1,000 Bytes
1,024 Bytes
Relation
1 kB = 0.9765625 KiB
1 KiB = 1.024 kB
Type
decimal (SI)
binary (IEC)

Convert Kilobyte (kB) to Other Data Units

Enter a value for Kilobyte to instantly convert it to other common data units. The tool calculates equivalent values for Bit, Byte, Megabyte, Mebibyte, Gigabyte and other larger units, making it easy to compare file sizes and data measurements at a glance.

kB keyboard_arrow_down
info 1 kB (decimal) = 0.9765625 KiB (binary)

Summary

  • A kilobyte is a unit of digital information equal to 1000 bytes
  • It is a decimal unit defined by the International System of Units (SI)
  • The symbol for kilobyte is kB
  • Kilobytes are commonly used to measure file sizes and storage capacities
  • It is important to distinguish between kilobytes and kibibytes, as the latter is a binary unit equal to 1024 bytes

FAQs

  • What is a Kilobyte?

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    A kilobyte is a unit of digital information equal to 1000 bytes. It is a decimal unit defined by the International System of Units (SI). The symbol for kilobyte is kB. Kilobytes are commonly used to measure file sizes and storage capacities. It is important to distinguish between kilobytes and kibibytes, as the latter is a binary unit equal to 1024 bytes.

  • How many bits are in a Kilobyte?

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    One Kilobyte (kB) is equal to 8,000 Bits.

  • Is a Kilobyte a decimal or binary unit?

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    Kilobyte is a decimal (SI) unit based on powers of 1,000.

  • How many Bytes are in a Kilobyte?

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    One Kilobyte (kB) is equal to 1,000 Bytes.

  • What is one Kilobyte in binary units?

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    One Kilobyte (kB) is approximately 0.9766 KiB.

  • What is a Kilobyte commonly used for?

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    Kilobyte is commonly used for Small text files, Email messages, Web page source code, and Configuration files.

  • What are some examples of Kilobyte usage?

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    Examples include Plain text page: ~4 kB, Small icon image: ~10 kB, and CSV data row: ~1 kB.