Tech Calculators & Converters
Save to PinterestSeven tools for developers, designers, and tech users: a data storage converter with a binary/SI toggle that shows all units (bytes through TB/TiB) simultaneously — making the GB vs GiB discrepancy visually concrete; a bandwidth converter spanning bits and bytes per second from kbps through GB/s; a CSS pixel unit converter (px, rem, em, pt) with a configurable base font size; an aspect ratio calculator that simplifies dimensions to a reduced ratio and solves for missing dimensions; a DPI/PPI calculator that rates print quality from the pixel count and print size; a HEX/RGB/HSL color converter with a live swatch that updates as any field is edited; and a video file size estimator from duration and bitrate.
All Tech Tools
Data Storage Converter — Bytes, KB, MB, GB, TB (Binary vs SI)
Convert bytes, KB, MB, GB, and TB between SI (÷1000) and binary (÷1024) systems. Understand why 1 GB ≠ 1 GiB.
Bandwidth Converter — Mbps, MB/s, Gbps, KB/s
Convert internet speeds between Mbps, MB/s, Gbps, KB/s, and GB/s. Understand the difference between bits per second and bytes per second.
Pixel Unit Converter — px, rem, em, pt
Convert CSS units: pixels (px) to rem, em, and points (pt). Set any base font size to match your design system.
Aspect Ratio Calculator — Simplify Ratios and Find Missing Dimensions
Simplify an aspect ratio from width and height, or find a missing dimension given a known ratio. Supports any custom ratio plus common presets.
DPI / PPI Calculator — Image Resolution for Print and Screen
Calculate DPI or PPI from pixel dimensions and print size. Includes quality guidance: what DPI is good enough for professional print vs screen display.
HEX to RGB to HSL Color Converter — Live Swatch
Convert colors between HEX, RGB, and HSL formats. Edit any field and see all three update instantly with a live color swatch.
File Size Estimator — Video Duration × Bitrate
Estimate video file size from duration and bitrate. Calculate how much storage a recording will need before you capture it.