Convert between bytes, KB, MB, GB, TB, PB and other digital storage units.
Digital storage units can be confusing with different measurement standards (decimal vs binary). The File Size Converter handles conversions between all common storage units instantly and accurately. Storage units follow two standards: decimal (SI standard) where 1 KB = 1000 bytes, and binary (IEC standard) where 1 KiB = 1024 bytes. Hard drive manufacturers use decimal (making drives seem larger), while operating systems often use binary (making reported size smaller). This discrepancy confuses many users. Our File Size Converter handles both standards clearly, showing both decimal and binary equivalents. Convert between bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), petabytes (PB), and exabytes (EB). Common scenarios: a user downloads a "1 GB" file and wonders why it shows as 931 MB on their computer (this is the decimal vs binary difference). A developer calculates API payload sizes and needs to verify storage requirements. A business plans cloud storage costs and needs to understand capacity in different units. Real-time conversion shows all unit equivalents as you type, making it easy to understand storage relationships and plan capacity accordingly.
KB (kilobyte) = 1000 bytes (decimal), KiB (kibibyte) = 1024 bytes (binary). Hard drives use decimal; computers often display binary.
Manufacturers report capacity in decimal (1TB = 1 trillion bytes), but computers display in binary (1 TiB ≈ 931 GB).
For storage devices, use decimal (TB). For RAM and computer storage, use binary (TiB). For network, use decimal (Mb, Gb).
Divide file size by internet speed. Example: 100 MB ÷ 10 Mbps = 80 seconds (accounting for Mbps vs MBps difference).