Storage, Throughput, and Capacity
A guide to storage conversion, throughput averages, download-time estimates, and RAID capacity, focused on keeping units and system assumptions visible.
Key formulas
Why unit discipline matters
Bits, bytes, kilobytes, kibibytes, megabits, and megabytes are often mixed casually in conversation. The maths is only trustworthy when you pin down the exact unit.
RAID capacity adds another layer because usable space depends on the array level rather than the raw drive sum alone.
Common mistakes
- Treating Mb/s and MB/s as the same unit.
- Assuming average throughput means the transfer rate stayed constant throughout.
- Ignoring parity or mirroring overhead in RAID-capacity estimates.
- Forgetting protocol overheads when comparing headline link speed with real transfer time.
Apply the topic straight away.
Storage Converter Calculator
Use the Storage Converter Calculator to work out storage converter for networking, storage, or systems planning.
Average Throughput Calculator
Use the Average Throughput Calculator to work out average throughput for networking, storage, or systems planning.
Download Time Calculator
Use the Download Time Calculator to work out download time for networking, storage, or systems planning.
RAID Capacity Calculator
Estimate usable RAID capacity from the drive count, drive size, and RAID level you select.