Technology Calculator

  • Battery Life Runtime Calculator
    Estimate how long a battery will last from its mAh capacity, load current, and efficiency. Get runtime in hours and minutes instantly.
  • Watts to Amps Calculator
    Convert watts to amps instantly. Enter power in watts and voltage to find the current in amps using amps = watts ÷ volts. Free DC power calculator.
  • Crypto Mining Profitability Calculator
    Estimate your daily, monthly and yearly crypto mining profit from hashrate, network hashrate, block reward, coin price and electricity cost.
  • Hash Rate Converter Calculator
    Convert cryptocurrency mining hash rates between H/s, kH/s, MH/s, GH/s, TH/s, PH/s and EH/s instantly with this free hash rate converter.
  • Streaming Carbon Footprint Calculator
    Estimate the CO₂ emissions from video streaming. Enter hours, data rate, network energy and grid intensity to get grams and kg of CO₂ instantly.
  • Security Camera Storage (NVR) Calculator
    Calculate NVR/DVR hard drive storage for security cameras from bitrate, recording hours, retention days and camera count. Get GB and TB needed.
  • RAID Capacity Calculator
    Calculate usable RAID storage for RAID 0, 1, 5, 6 and 10. Enter disk count and size to see usable capacity, redundancy overhead and efficiency.
  • Monitor PPI (Pixels Per Inch) Calculator
    Calculate a monitor or screen's PPI (pixels per inch) from its resolution and diagonal size. Get pixel density, dot pitch and physical dimensions instantly.
  • Audio File Size Calculator
    Estimate audio file size from bitrate and duration. Convert kbps and minutes or hours into MB, KB and GB instantly with this free calculator.
  • MTBF / MTTR Availability Calculator
    Calculate network or system availability (uptime %) from MTBF and MTTR. See downtime percentage and estimated downtime hours per year instantly.
  • Megapixel Calculator
    Convert any pixel resolution to megapixels. Enter width and height in pixels to get total pixels, megapixels (MP), and the aspect ratio instantly.
  • SLA Uptime & Downtime Calculator
    Calculate allowed downtime from any SLA uptime percentage. See permitted outage per day, week, month, quarter or year in seconds, minutes, hours and days.
  • LLM Tokens to Words Calculator
    Convert between LLM tokens and words instantly. Estimate how many words a token count holds (or vice versa) using the ~0.75 words-per-token rule.
  • PPI Pixel Density Calculator
    Calculate display PPI (pixels per inch), dot pitch, screen size, total pixels and aspect ratio from resolution and diagonal size in inches, cm or mm.
  • Computer (Digital) Storage Units Converter
    Convert digital storage between bits and bytes, decimal (kB, MB, GB) and binary (KiB, MiB, GiB) units. Free, accurate converter with the IEC standard explained.
  • RAID Capacity Calculator
    Calculate usable RAID storage capacity for RAID 0, 1, 5, 6 and 10. Enter disk count and size to see usable space, overhead and efficiency.
  • RAM Latency Calculator
    Calculate true RAM latency in nanoseconds from CAS latency (CL) and memory speed (MT/s). Compare DDR4 and DDR5 modules instantly with this free tool.
  • Transfer Speed from Transfer Time Calculator
    Calculate effective transfer speed (bps, kbps, Mbps, MB/s, GB/s) from data size and elapsed time. Choose decimal (1000) or binary (1024) prefix bases.
  • Data Transfer Time Calculator
    Estimate how long it takes to transfer files over a network, HDD or USB. Supports B/kB/MB/GB/TB, bps vs B/s, 1000/1024 base and transmission efficiency.
  • Moore's Law Transistor Density Growth Calculator
    Estimate how many times semiconductor transistor density multiplies over N years using Moore's Law (density doubles every 18 months / 1.5 years).
  • Text to Binary (ASCII) Converter
    Convert any text to binary online. Each character becomes its ASCII code, then an 8-bit binary string. Get spaced, continuous, and decimal output instantly.
  • Password Crack Time Calculator
    Estimate how long a brute-force attack needs to crack your password from its length, character set and an attacker's guesses per second.
  • WCAG Color Contrast Ratio Calculator
    Check the WCAG 2.x color contrast ratio between two hex colors. See if your text passes AA and AAA accessibility standards for normal and large text.
  • MIPS to Average Instruction Execution Time Converter
    Convert between a CPU's MIPS rating and the average time to execute one instruction, in both directions, with results in s, ms, us, ns and ps.

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