ganak.appTech Calculators
8 calculators · Updated Apr 2026
Calculate PC power supply requirements, check for hardware bottlenecks, plan RAID arrays, subnet networks, and measure screen specifications. Essential tools for IT professionals and PC enthusiasts.
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PC PSU Calculator
Calculate the right PSU wattage for your PC build. Enter CPU and GPU power draw, storage, fans, and cooling for recommended PSU size.
PC Bottleneck Calculator
Free PC bottleneck calculator. Enter CPU, GPU & RAM specs to check system balance, identify bottlenecks, and get upgrade recommendations.
Subnet Calculator
Calculate subnet details for any IPv4 or IPv6 address. Get network address, broadcast, usable host range, wildcard mask, and CIDR table.
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RAID Calculator
Calculate RAID capacity, efficiency, and fault tolerance for RAID 0, 1, 5, 6, 10, 50, 60. Compare levels side-by-side with cost-per-TB and hot spare support.
PPI Calculator
Calculate pixel density (PPI) for any display. Enter resolution and screen size, or pick from 30+ devices. See PPI, dot pitch, and Retina quality check.
Screen Size Calculator
Calculate screen width, height, and area from diagonal size and aspect ratio. Get PPI, dot pitch, viewing distance, and Retina quality check for any display.
2's Complement Calculator
Free 2's complement calculator. Encode signed integers, decode binary or hex, add or subtract at 4, 6, 8, 12, 16, or 32 bits with step-by-step working and overflow detection.
Binary to Gray Code Converter
Free binary to Gray code converter. Convert binary ↔ Gray at 3 to 8-bit and 16-bit widths with step-by-step XOR working, bit-by-bit visualization, truth table, and hex/decimal outputs.
Why Use Tech Calculators?
Building a PC with an underpowered PSU risks instability; pairing a top-tier GPU with a weak CPU wastes money on a bottleneck. These calculators help you size your power supply correctly, identify hardware mismatches before you buy, plan RAID configurations for the right balance of speed and redundancy, and calculate subnet ranges for network planning.