Data Storage Converter
Convert between bits, bytes, KB, MB, GB, TB and binary units (KiB, MiB, GiB) — instantly.
Convert digital storage units instantly
The Data Storage Converter converts between every common digital size unit — bits, bytes, kilobytes, megabytes, gigabytes, terabytes — and the binary units (kibibytes, mebibytes, gibibytes). Enter a value, pick your units, and get an accurate result immediately. It is built for developers, sysadmins, and anyone trying to make sense of file sizes, bandwidth, and storage capacity.
Decimal vs binary units — the source of confusion
There are two ways to measure data, and mixing them up causes endless confusion. Decimal units use powers of 1,000: 1 KB = 1,000 bytes, 1 MB = 1,000,000 bytes. Binary units use powers of 1,024: 1 KiB = 1,024 bytes, 1 MiB = 1,048,576 bytes. Storage manufacturers advertise in decimal, while operating systems often report in binary — which is why a "1 TB" drive shows as about 931 GiB in your file manager. This tool includes both so you can convert correctly in either system.
The units at a glance
| Unit | Equals |
|---|---|
| 1 byte | 8 bits |
| 1 KB (decimal) | 1,000 bytes |
| 1 MB (decimal) | 1,000,000 bytes |
| 1 KiB (binary) | 1,024 bytes |
| 1 MiB (binary) | 1,048,576 bytes |
| 1 GiB (binary) | 1,073,741,824 bytes |
How to use it
- Enter a value in the From field.
- Choose the unit you have and the unit you want.
- Read the converted size instantly, and copy it if needed.
Bits vs bytes
One more common mix-up: bits (lowercase b) and bytes (uppercase B). A byte is 8 bits. Network speeds are usually quoted in bits per second (Mbps), while file sizes are in bytes (MB). That is why a "100 Mbps" connection downloads at roughly 12.5 MB per second. Because this converter includes bits, you can move between the two without second-guessing the factor of eight.
Private and free
All conversions run in your browser with exact factors, nothing uploaded, and no limits. Convert as many sizes as you like, completely free.
Frequently asked questions
How many MB are in a GB?
In decimal units, 1 GB = 1,000 MB. In binary units, 1 GiB = 1,024 MiB. This tool supports both.
Why does my 1 TB drive show less space?
Drives are advertised in decimal (1 TB = 1,000,000,000,000 bytes) but operating systems often report in binary, so 1 TB shows as about 931 GiB.
What is the difference between bits and bytes?
A byte is 8 bits. Network speeds use bits (Mbps); file sizes use bytes (MB).
Does it support binary units like MiB?
Yes. It includes KiB, MiB, and GiB alongside the decimal KB, MB, GB, and TB.