Digital Storage Converter
Convert any digital storage unit to another with this free digital storage converter. It supports 10 units including bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes, and more. Pick a conversion below for a dedicated calculator, formula, and reference table. For example, 1 B = 0.0009765625 KB.
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About these units
Byte (B)
- Definition
- A byte (B) is a unit of digital information made up of 8 bits, enough to store a single character.
- History
- The term was coined at IBM in the 1950s; the 8-bit byte became standard with early microprocessors.
- Current use
- Bytes are the fundamental unit for file sizes and memory in computing.
Kilobyte (KB)
- Definition
- A kilobyte (KB) is 1,024 bytes in the binary convention used by most operating systems.
- History
- Early computing adopted powers of two, so a "kilo" came to mean 1,024 rather than 1,000.
- Current use
- Kilobytes measure small files such as documents and configuration data.
Megabyte (MB)
- Definition
- A megabyte (MB) is 1,024 kilobytes, or 1,048,576 bytes in the binary convention.
- History
- It became a household term with floppy disks and early hard drives.
- Current use
- Megabytes measure photos, songs, and application sizes.
Gigabyte (GB)
- Definition
- A gigabyte (GB) is 1,024 megabytes, the common unit for storage and memory capacity.
- History
- Gigabyte-scale storage became affordable for consumers in the early 2000s.
- Current use
- Gigabytes measure RAM, phone storage, and monthly mobile data allowances.
Terabyte (TB)
- Definition
- A terabyte (TB) is 1,024 gigabytes, used for large drives and data sets.
- History
- Terabyte hard drives reached consumers in 2007 as storage density grew.
- Current use
- Terabytes measure hard-drive capacity, backups, and large media libraries.
Petabyte (PB)
- Definition
- A petabyte (PB) is 1,024 terabytes, a unit for very large-scale data storage.
- History
- The term gained prominence with the growth of cloud computing and big data.
- Current use
- Petabytes describe the storage of data centers, scientific archives, and major web services.
Bit (bit)
- Definition
- A bit is the smallest unit of digital information, representing a single 0 or 1.
- History
- The concept was formalised by Claude Shannon in 1948 as the basic unit of information.
- Current use
- Bits underpin all digital data; network speeds are measured in bits per second.
Kilobit (Kb)
- Definition
- A kilobit (Kb) is 1,024 bits, often used to express data rates rather than storage.
- History
- It became common for describing modem and early network speeds.
- Current use
- Kilobits per second describe low-bandwidth connections and audio bitrates.
Megabit (Mb)
- Definition
- A megabit (Mb) is 1,024 kilobits, mainly used for data-transfer rates.
- History
- Megabit-per-second links spread with broadband internet.
- Current use
- Megabits per second is the standard way to advertise internet connection speeds.
Gigabit (Gb)
- Definition
- A gigabit (Gb) is 1,024 megabits, used for high-speed data rates.
- History
- Gigabit Ethernet standardised gigabit-per-second networking from 1999.
- Current use
- Gigabits per second describe fast fibre internet and data-center networking.
Frequently asked questions
What digital storage units can I convert?
This digital storage converter supports 10 units: bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes, bits, kilobits, megabits, gigabits. Select any pair below to open a dedicated converter with a formula and conversion table.
How accurate is the digital storage converter?
Conversions use exact definitional factors, so results are accurate to the precision you need for science, engineering, and everyday use. Values are rounded only for display.
Is the digital storage converter free?
Yes. Every digital storage conversion is completely free, needs no sign-up, and runs entirely in your browser — your inputs never leave your device.
Free, private, and instant — every conversion runs in your browser.
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