Metric vs Imperial: Why the US Still Uses Imperial (2026)
The history, math, and politics of metric vs imperial units — plus how to convert between them quickly.
January 12, 2026 · 7 min read
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Guides and explainers about units, conversions, and the math behind them.
Celsius to Fahrenheit: Formula, Chart & Quick Guide
The formula, a chart of key temperatures, and a mental-math shortcut for converting Celsius to Fahrenheit.
January 18, 2026 · 6 min read
KB, MB, GB, TB Explained: Data Storage Units Guide (2026)
SI vs IEC, why your hard drive shows less than advertised, and a reference table from bit to petabyte.
January 22, 2026 · 7 min read
HEX, RGB, HSL Color Codes Explained — How to Read & Convert
A clear, practical guide to reading and converting HEX, RGB, HSL, HSV, and CMYK color codes.
January 26, 2026 · 7 min read
Binary, Decimal & Hex Explained Simply — Number Bases Guide
Why computers use binary, why developers use hex, and how to convert between every common number base.
January 30, 2026 · 8 min read
What these guides cover
Each guide explains the idea behind one of the converters on this site, so the number on the screen makes sense and you can sanity-check it yourself. The articles walk through where a unit system came from, how its units relate to each other, and the mistakes that cause most wrong answers, such as mixing up weight and volume or reading a storage size in the wrong base.
- Everyday measurement: metric and imperial units, temperature scales, and how to move between them with the length, weight and temperature converters.
- Digital units: bytes, kilobytes and the decimal and binary prefixes, plus binary, decimal and hexadecimal numbers, with the data storage and number base converters.
- Design: how HEX, RGB and HSL describe the same colour, alongside the colour code converter.
Looking for a tool rather than an explanation? The full list of converters has every unit family, converter tool and conversion chart on one page.