RAID Calculator
Compare usable RAID capacity for RAID 0, 1, 5, 6, 10, 50, 60, JBOD, hot spares, overhead, and TB/TiB display settings.
Interactive calculatorOpen calculatorStorage Calculators
18 interactive calculators · 3 planning guides
Plan capacity, performance, and reliability decisions for storage and PC hardware.
Start here paths
Choose the storage decision
Start with common storage decisions: download time, SD card capacity, RAM latency, and RAID 5 vs RAID 6.
Compare RAID capacity
Compare usable RAID capacity for RAID 0, 1, 5, 6, 10, 50, 60, JBOD, hot spares, overhead, and TB/TiB display settings.
Interactive calculatorPlan a NAS purchase
Compare usable NAS capacity with your target using equal drives, RAID, spares and an entered storage allowance. Invalid active-drive layouts are rejected.
Interactive calculatorEstimate camera retention
Estimate camera recording storage from measured encoded bitrate and retention, then add an explicit entered headroom allowance. FPS and codec provide context only.
Interactive calculatorRAID and NAS planning
RAID Calculator
Compare usable RAID capacity for RAID 0, 1, 5, 6, 10, 50, 60, JBOD, hot spares, overhead, and TB/TiB display settings.
Interactive calculatorRAID 5 Capacity Calculator
Calculate RAID 5 usable capacity in TB and TiB, then account for parity, hot spares, filesystem allowance, free-space reserve, current data, and headroom.
Interactive calculatorRAID 6 Calculator
Calculate RAID 6 usable capacity from drive count, drive size, dual-parity reserve, hot spares, overhead, efficiency, and TB/TiB units.
Interactive calculatorRAID 10 Calculator
Calculate RAID 10 usable capacity from drive count, size, hot spares, and filesystem overhead. See mirror pairs, unused drives, efficiency, and failure limits.
Interactive calculatorMixed Drive RAID Calculator
Compare mixed-drive RAID and JBOD capacity. See smallest-drive loss, parity or mirror reserve, unpaired RAID 10 space and installed-drive efficiency.
Interactive calculatorNAS Capacity Calculator
Compare usable NAS capacity with your target using equal drives, RAID, spares and an entered storage allowance. Invalid active-drive layouts are rejected.
Interactive calculatorCamera and recording storage
CCTV / Surveillance Storage Calculator
Estimate camera recording storage from measured encoded bitrate and retention, then add an explicit entered headroom allowance. FPS and codec provide context only.
Interactive calculatorMemory Card Calculator
Estimate whole photos and encoded video time from decimal card capacity, file size and bitrate with an explicit editable capacity reserve.
Interactive calculatorTransfer and performance
Download Time Calculator
Calculate download or upload time from MB, GB, TB, MiB or GiB and speeds in Mbps, Gbps or MB/s. Compare ideal time, transfer loss and effective speed.
Interactive calculatorMemory Timing Calculator
Convert DDR4 or DDR5 MT/s, CL, tRCD, tRP, and tRAS to nanoseconds. Compare two RAM kits side by side with worked examples and clear limitations.
Interactive calculatorVRAM Calculator
Calculate densely stored model-weight bytes and GiB from parameter count and precision, then add an explicitly entered memory allowance. No GPU performance prediction.
Interactive calculatorHardware and electrical planning
Cable Planning Guide
Prepare conductor, circuit, installation and protection details for a qualified electrical assessment. This guide does not approve wire sizes or circuit safety.
Safety-focused planning guideRF Path Planning Guide
Collect frequency, distance, antenna and terrain information for a documented radio link assessment. No interactive link-budget estimate is available.
Planning guideWindows Storage Spaces Planning Guide
Compare the information needed for mirror and parity configurations, including drive count, layout and Windows documentation. No capacity result is calculated here.
Planning guideSystem/admin utilities
Complete shelf
All storage calculators
21 calculators and planning guides are available. 18 offer interactive results; every page explains its assumptions, scope, and limitations. Use the details on each page to choose the tool that fits your question.
RAID 5 Capacity Calculator
Calculate RAID 5 usable capacity in TB and TiB, then account for parity, hot spares, filesystem allowance, free-space reserve, current data, and headroom.
Interactive calculatorOpen calculatorRAID 6 Calculator
Calculate RAID 6 usable capacity from drive count, drive size, dual-parity reserve, hot spares, overhead, efficiency, and TB/TiB units.
Interactive calculatorOpen calculatorRAID 10 Calculator
Calculate RAID 10 usable capacity from drive count, size, hot spares, and filesystem overhead. See mirror pairs, unused drives, efficiency, and failure limits.
Interactive calculatorOpen calculatorMixed Drive RAID Calculator
Compare mixed-drive RAID and JBOD capacity. See smallest-drive loss, parity or mirror reserve, unpaired RAID 10 space and installed-drive efficiency.
Interactive calculatorOpen calculatorNAS Capacity Calculator
Compare usable NAS capacity with your target using equal drives, RAID, spares and an entered storage allowance. Invalid active-drive layouts are rejected.
Interactive calculatorOpen calculatorCCTV / Surveillance Storage Calculator
Estimate camera recording storage from measured encoded bitrate and retention, then add an explicit entered headroom allowance. FPS and codec provide context only.
Interactive calculatorOpen calculatorMemory Card Calculator
Estimate whole photos and encoded video time from decimal card capacity, file size and bitrate with an explicit editable capacity reserve.
Interactive calculatorOpen calculatorDownload Time Calculator
Calculate download or upload time from MB, GB, TB, MiB or GiB and speeds in Mbps, Gbps or MB/s. Compare ideal time, transfer loss and effective speed.
Interactive calculatorOpen calculatorMemory Timing Calculator
Convert DDR4 or DDR5 MT/s, CL, tRCD, tRP, and tRAS to nanoseconds. Compare two RAM kits side by side with worked examples and clear limitations.
Interactive calculatorOpen calculatorCable Planning Guide
Prepare conductor, circuit, installation and protection details for a qualified electrical assessment. This guide does not approve wire sizes or circuit safety.
Safety-focused planning guideOpen planning guideVRAM Calculator
Calculate densely stored model-weight bytes and GiB from parameter count and precision, then add an explicitly entered memory allowance. No GPU performance prediction.
Interactive calculatorOpen calculatorRF Path Planning Guide
Collect frequency, distance, antenna and terrain information for a documented radio link assessment. No interactive link-budget estimate is available.
Planning guideOpen planning guideWindows Storage Spaces Planning Guide
Compare the information needed for mirror and parity configurations, including drive count, layout and Windows documentation. No capacity result is calculated here.
Planning guideOpen planning guideLinux Chmod Calculator
Encode Unix owner, group and others permission checkboxes or decode three octal digits. Preserve leading zero groups and explain rwx meanings without changing files.
Interactive calculatorOpen calculatorBattery & UPS Runtime Calculator
Estimate battery or UPS runtime from Ah/Wh, entered load and efficiency. Show an explicitly entered sensitivity range rather than an inferred uncertainty estimate.
Interactive calculatorOpen calculatorDIP Switch Calculator
Convert a decimal address to DIP switch ON/OFF positions, or read an address from switch positions, with LSB-first or MSB-first weighting and an optional +1 offset.
Interactive calculatorOpen calculatorHex to Text Converter
Decode hex bytes to text or encode text to hex with an explicit UTF-8, 7-bit ASCII or Latin-1 encoding, byte count and positions of any invalid bytes.
Interactive calculatorOpen calculatorBinary, Decimal & Hex Converter
Convert whole numbers between binary, octal, decimal and hexadecimal exactly, with optional 8/16/32/64-bit two's complement and place-value working.
Interactive calculatorOpen calculatorSubnet Calculator
Enter an IPv4 address with a /prefix or netmask to get the network, broadcast, wildcard, usable host range and count, and split it into smaller subnets.
Interactive calculatorOpen calculatorPC Wattage & PSU Load Calculator
Add entered component watts, compare a PSU rating with your DC load and headroom target, and estimate AC wall power using your scenario efficiency.
Interactive calculatorOpen calculatorMethodology notes
- Each calculator states its formula or method, shows an example, and lists assumptions that can change the result.
- Specialized planning calculators remain accessible, while broad recommendations emphasize the clearest calculators.
- Safety-sensitive tools show conservative warnings and assumptions.
Storage decision guides
Not sure which storage path to compare first? Start with RAID 5 vs RAID 6 for parity tradeoffs, use the RAM latency calculator for DDR4/DDR5 timing, and then check download time or memory card capacity for transfer and camera workflows.