Marks Calc
11 units

Data Storage Converter

Convert between bits, bytes, and their multiples — both decimal (1 KB = 1,000 B) and binary (1 KiB = 1,024 B).

Common data storage conversions

FromEquivalent
1 B8 b · 0.001 KB · 1.0000e-6 MB · 1.0000e-9 GB · 1.0000e-12 TB
5 B40 b · 0.005 KB · 5.0000e-6 MB · 5.0000e-9 GB · 5.0000e-12 TB
10 B80 b · 0.01 KB · 1.0000e-5 MB · 1.0000e-8 GB · 1.0000e-11 TB
100 B800 b · 0.1 KB · 0.0001 MB · 1.0000e-7 GB · 1.0000e-10 TB
1000 B8000 b · 1 KB · 0.001 MB · 1.0000e-6 GB · 1.0000e-9 TB

How the conversion works

1 byte = 8 bits. Decimal: 1 KB = 1,000 B (storage manufacturers). Binary: 1 KiB = 1,024 B (operating systems often display this).

When you'll use this converter

  • Cloud storage planning (GB ↔ TB)
  • Network bandwidth (bits per second)
  • Memory and RAM (binary GiB)
  • File transfer estimates

Frequently asked

Why does my hard drive show less space than advertised?

Drive manufacturers use decimal units (1 TB = 1,000 GB = 10¹² bytes), but operating systems often display binary units (1 TiB = 1,024 GiB ≈ 1.0995 TB). A '1 TB' drive shows as ~931 GiB in Windows.

What's the difference between Mb and MB?

Mb is megabits (lowercase b = bit), MB is megabytes (uppercase B = byte). 1 MB = 8 Mb. Network speeds are typically in Mbps (megabits/s), file sizes in MB.

Are KB and KiB the same?

No. KB = 1,000 bytes (decimal). KiB = 1,024 bytes (binary). The 'i' is the IEC prefix for binary.