File Size Converter
Bit0
Byte (B)0
Kilobyte (KB, 10³)0
Megabyte (MB, 10⁶)0
Gigabyte (GB, 10⁹)0
Terabyte (TB, 10¹²)0
Kibibyte (KiB, 2¹⁰)0
Mebibyte (MiB, 2²⁰)0
Gibibyte (GiB, 2³⁰)0
Tebibyte (TiB, 2⁴⁰)0
Decimal (KB, base 1000) vs binary (KiB, base 1024): hard drives advertise decimal, operating systems often show binary – so “1 TB” ≈ 0.91 TiB.
Convert data amounts correctly
The converter shows a value in all common units at once. The key distinction is between decimal (KB, MB, GB – base 1000) and binary units (KiB, MiB, GiB – base 1024).
- Decimal (SI): 1 KB = 1000 bytes. This is how drive and internet providers count.
- Binary (IEC): 1 KiB = 1024 bytes. This is how many operating systems show storage.
- Bit vs. byte: 1 byte = 8 bits – important when comparing storage size and bandwidth.