File Size Converter

Universal multi-unit file size converter across Bit, Byte, KB, MB, GB, TB, PB, KiB, MiB, GiB, TiB.

File Size Converter Live Calculation

Enter File Size to Convert:

Universal Equivalent Table:

Standard	Unit	Converted Value
Decimal (SI 1000)	Bytes (B)	1,000,000,000 B
Decimal (SI 1000)	Kilobytes (KB)	1,000,000 KB
Decimal (SI 1000)	Megabytes (MB)	1,000 MB
Decimal (SI 1000)	Gigabytes (GB)	1 GB
Decimal (SI 1000)	Terabytes (TB)	0.001 TB
Decimal (SI 1000)	Petabytes (PB)	0.000001 PB
Binary (IEC 1024)	Kibibytes (KiB)	976,562.5 KiB
Binary (IEC 1024)	Mebibytes (MiB)	953.6743 MiB
Binary (IEC 1024)	Gibibytes (GiB)	0.9313 GiB
Binary (IEC 1024)	Tebibytes (TiB)	0.00091 TiB
Digital Transmission	Bits (b)	8,000,000,000 bits

What is the File Size Converter?

An all-in-one universal file size converter designed for IT professionals, developers, and students to compare decimal and binary measurements side by side.

How to Use This Tool

Enter any number, choose the starting unit from the dropdown, and instantly view the converted values for all 11 file size metrics.

Formula & Calculation Logic

The mathematical formula used to calculate this conversion is:

Base Value in Bytes = Input × Multiplier Target Unit = Base Value ÷ Target Multiplier

Step-by-Step Example Calculation

Here is a real-world calculation example demonstrating the mathematics:

Example: 1 GB = 1,000 MB = 1,000,000 KB = 8,000,000,000 bits = 0.9313 GiB = 953.67 MiB

Frequently Asked Questions

MB is decimal (10^6 = 1,000,000 bytes) defined by SI. MiB is binary (2^20 = 1,048,576 bytes) defined by IEC.

Petabyte (PB), followed by Exabyte (EB), Zettabyte (ZB), and Yottabyte (YB).

Hardware manufacturers use decimal prefixes (1 TB = 1,000,000,000,000 bytes), but operating systems like Windows report capacity in binary (TiB), resulting in an apparent numerical difference (1 TB advertised displays as ~931 GiB in Windows, an apparent ~6.87% difference in reported number with 100% of physical bytes present).