Storage · RAID
RAID Usable Capacity Calculator
Calculate nominal usable capacity for equal-size RAID 0, 1, 5, 6, and 10 arrays with explicit parity and mirroring formulas.
PC hardware tools
Useful calculations for real PC decisions.
Convert specifications and your own inputs into RAID capacity, recording storage, download time, bandwidth, latency, endurance, energy cost, and display-density figures you can use immediately.
Calculators
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Each calculator shows the technical quantity it derives and the limits of what that number means.
Recording · Storage
Video Recording Storage Calculator
Estimate recording file size from video and audio bitrate, or calculate recording time from available GB or GiB.
Network · Download time
Game Download Time Calculator
Convert a game or update size and connection speed into a transparent theoretical transfer time with explicit bit/byte units.
Storage · Endurance
SSD TBW / DWPD Endurance Calculator
Convert an SSD endurance rating between TBW and DWPD using drive capacity and warranty or rating-period inputs.
PCIe · Bandwidth
PCIe Link Bandwidth Calculator
Compare theoretical one-direction PCIe link capacity across generations and lane widths, from x1 through x16.
Power · Operating cost
PC Electricity Cost Calculator
Estimate electricity use and cost from average wall power draw, daily usage time, and your electricity price per kWh.
Memory · Bandwidth
DDR Memory Bandwidth Calculator
Calculate theoretical peak DDR bandwidth from MT/s, bus width per channel, and active memory-channel count.
Memory · Timing
DDR Memory Latency Calculator
Convert DDR data rate in MT/s and CAS latency in cycles into the corresponding CAS timing in nanoseconds.
Display · Pixel density
Monitor Pixel Density / PPI Calculator
Calculate PPI, pixel pitch, diagonal pixel count, and active display dimensions from resolution and screen size.