Storage Capacity & Data Unit Calculator
Convert seamlessly between decimal (SI: KB, MB, GB) and binary (IEC: KiB, MiB, GiB) storage units, calculate transfer times, and project storage requirements.
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Decimal (SI) vs. Binary (IEC) Reference
Decimal Standards (SI)
Based on powers of 10 (1 KB = 1,000 Bytes). Commonly utilized by storage hardware manufacturers for disk labeling.
Binary Standards (IEC)
Based on powers of 2 (1 KiB = 1,024 Bytes). Traditionally used by operating systems for RAM and file sizes.
Network Bandwidth
Network transmission speeds are measured in bits per second (bps, Mbps, Gbps) rather than bytes (Bps).
Frequently Asked Questions (FAQ)
Hardware manufacturers calculate capacity using decimal units (1 GB = 1,000,000,000 bytes), while operating systems often calculate using binary units (1 GiB = 1,073,741,824 bytes), creating a discrepancy in reported numbers.
A megabit (Mb) contains $10^6$ bits (or sometimes $2^{20}$ bits in specific networking contexts), whereas a megabyte (MB) contains $10^6$ bytes. Since 1 byte equals 8 bits, file sizes in MB must be multiplied by 8 to compare directly against network speeds in Mbps.