Data Size Converter
Convert between bytes, kilobytes, megabytes, gigabytes, and terabytes.
About the Data Size Converter
The data size converter translates between bytes, kilobytes, megabytes, gigabytes and terabytes — essential for understanding mobile data packages, file sizes, storage devices and internet usage, all of which matter daily for Pakistani internet users.
The relationship is binary: 1 kilobyte = 1,024 bytes, 1 megabyte = 1,024 kilobytes, and so on. This converter uses the binary convention (base 1024) that operating systems and telecom operators use when displaying file sizes and data usage — which is why a '1 GB' package can show as roughly 0.93 GB on your phone depending on how the manufacturer labels storage.
Understanding these units prevents costly misunderstandings: streaming a standard-definition video can consume roughly 0.7 GB per hour and high-definition around 3 GB per hour, so a 10 GB monthly mobile package disappears quickly with daily video use. Knowing how many megabytes your WhatsApp backups, social media scrolling and downloads consume helps choose the right package from Jazz, Zong, Telenor or Ufone.
Storage marketing adds another layer: hard drives and phones are sold using decimal units (1 GB = 1,000,000,000 bytes), while your device displays binary units (1 GB = 1,073,741,824 bytes). That is why a '512 GB' phone shows about 476 GB of usable capacity — a 7% difference explained entirely by the two conventions.
This converter uses the binary convention consistently, matching what you see on your device. Use it to estimate how many photos, songs or videos fit in a package, or to compare file sizes before uploading or downloading.
How to convert data sizes
- 1
Enter the data size value.
- 2
Select the unit — bytes, KB, MB, GB or TB.
- 3
Select the unit you want to convert to.
- 4
Read the result in binary units (base 1024), matching what your phone and computer display.
Frequently Asked Questions
How many MB are in a GB?
There are 1,024 megabytes in a gigabyte (using binary units, which is how operating systems and mobile data are measured).
Why does my phone show less storage than advertised?
Manufacturers advertise storage using decimal units (1 GB = 1 billion bytes), but devices display binary units (1 GB = 1,073,741,824 bytes). A 512 GB phone therefore shows about 476 GB, before the operating system and pre-installed apps take their share.
How much data does video streaming use?
Standard-definition streaming uses roughly 0.7 GB per hour and high-definition about 3 GB per hour. Video calls and social media video also consume significant data — check your app's settings for data-saving modes.
What is the difference between KB and kB?
KB (uppercase B) means kilobytes — 1,024 bytes in binary convention. kB (lowercase b) is sometimes used for kilobits — 1,000 bits, one-eighth of a kilobyte. This converter uses kilobytes (KB) with 1 KB = 1,024 bytes.