Tech & Digital Calculators
Download time, data usage, password strength, domain value and tech ROI.
Download times, data usage, password strength, hosting costs — measured against real-world network speeds and current pricing assumptions, each stated on the page. Tools that estimate security margins (password entropy, crack time) show the math and the honest caveats.
Internet Download Time
Calculate file download time
Bandwidth Calculator
Calculate bandwidth needed for activities
Data Usage Calculator
Calculate monthly data usage
Video File Size
Calculate video file sizes
Monitor Viewing Distance
Find ideal screen distance
WiFi Channel Finder
Find best WiFi channel
Cloud Storage Cost
Compare cloud storage plans
Website Dev Cost
Estimate website development cost
SSD vs HDD Speed
Compare SSD vs HDD speeds
Battery Life Estimator
Estimate device battery life
Screen Resolution Guide
Find ideal resolution for screen size
Cable Length Calculator
Calculate optimal cable length
PPI (Pixels Per Inch)
Calculate screen pixel density
Power Supply Calculator
Calculate PSU wattage needed
Print Resolution Guide
Calculate optimal print resolution
Password Crack Time
Estimate how long it takes to brute-force a password
Image File Size Estimator
Estimate image file size from dimensions
Hosting Cost per Year
Compare hosting plans over a year
Refresh Rate vs FPS
Find max FPS your monitor can show
Streaming Bitrate Guide
Find ideal streaming bitrate for your setup
RAID Capacity Calculator
Calculate usable storage for RAID levels
Uptime / Downtime Calculator
Convert uptime % to downtime per year
Device Charging Time
Estimate how long your device takes to charge
Cloud Data Transfer Cost
Estimate cloud egress bandwidth cost
AI Token Cost Estimator
Estimate LLM API costs for your usage
Base64 Encoder
Encode text to Base64 instantly
Base64 Decoder
Decode Base64 back to readable text
URL Encoder / Decoder
Encode or decode URL parameters safely
JSON Formatter
Pretty-print, minify and validate JSON
Word & Character Counter
Count words, characters, sentences and reading time
Text Case Converter
Convert text between uppercase, lowercase, title and sentence case
Hash Generator (MD5/SHA)
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes
RGB ↔ Hex Converter
Convert between RGB and HEX color codes
UUID v4 Generator
Generate one or many random UUID v4 identifiers
Strong Password Generator
Generate secure random passwords with adjustable length and character sets
IP Subnet Calculator
Calculate network address, broadcast, range and usable hosts for IPv4 CIDR
Cron Expression Validator
Validate and explain cron schedule expressions
Resistor Color Code Calculator
Decode 4-band resistor colors to ohms and tolerance instantly
ASCII Table Reference
Look up ASCII character codes (0-127) — decimal, hex, binary
Wire Gauge (AWG) Reference
Look up AWG wire diameter, area and ampacity (RapidTables-style reference)
Aspect Ratio Calculator
Find dimensions for an aspect ratio
Color Contrast Checker
WCAG contrast ratio between two colors
Reading Time (Web)
Reading time for a webpage or article
PX to REM/EM Converter
Convert px to rem and em
Storage Needs Calculator
Storage space for your files
Latency-Bandwidth Calculator
Transfer time from bandwidth and latency
Download Time Calculator
Time to download a file
Audio File Size Calculator
File size of an audio recording