RubanTools

Data Storage Converter

Convert between bits, bytes, KB, MB, GB, TB and PB - binary (1024-based) calculations.

UnitValue

Uses binary (1024-based) IEC standard: 1 KB = 1,024 B.

When to Convert Data Size

Storage Planning

Calculate how many photos, videos or files fit on a drive of a given size.

Internet Data Plans

Convert data plan limits between GB and MB to understand how much browsing you get.

Programming

Calculate buffer sizes, file sizes and memory limits when developing software.

Cloud Storage

Compare cloud plans (e.g. 15 GB Google Drive vs. 50 GB iCloud) and what they hold.

Video & Media

Estimate download time or storage needed for videos in different resolutions and bitrates.

Server & Database

Size database dumps, backup archives and server disk requirements in appropriate units.

Data Storage Questions

In the binary (IEC) standard used by computers: 1 KB = 1,024 bytes. In decimal (SI): 1 KB = 1,000 bytes. Most operating systems use binary, which is what this converter uses.

Drive manufacturers use decimal (1 TB = 10¹² bytes = 1,000 GB). Your OS reports in binary (1 TB = 2⁴⁰ bytes ≈ 1,099.5 GB). A "1 TB" drive shows as ≈ 931 GB in Windows - the 7% gap is this mismatch.

1 byte = 8 bits. Bits are used for network speeds (Mbps, Gbps), while bytes are used for file sizes. A 100 Mbps connection transfers 100 megabits = 12.5 megabytes per second.

A typical 12MP smartphone JPEG = 3–5 MB. So 1 GB holds roughly 200–340 photos. RAW files are 20–30 MB each, so 1 GB holds about 35–50 RAW shots.

After petabyte: exabyte (1,024 PB), zettabyte (1,024 EB), yottabyte (1,024 ZB). Global internet traffic is currently measured in exabytes per month.