Guides
Reference material on the units behind each converter, written for when you need to understand why, not just get a number.
Aug 10, 2026
Why converting Celsius to Fahrenheit isn't just multiply-and-add
Most unit conversions are a single multiplier. Temperature needs an offset too, because Celsius and Fahrenheit don't share a zero point. The formulas, the common mistake, and why science uses Kelvin.
Aug 14, 2026
KB vs KiB vs MB: why your hard drive shows less space than advertised
Drive manufacturers count in decimal (1,000-based) units; your operating system counts in binary (1,024-based) units. Here's the actual math behind the missing gigabytes.
Aug 17, 2026
Metric vs. imperial: a practical conversion cheat sheet
The handful of conversions people actually look up constantly, plus a few memorable approximation tricks for doing them in your head.
Aug 20, 2026
PSI, bar, atm, pascal: converting pressure units without the confusion
Four common pressure units, four different fields that adopted them, and the reference-point conversions that connect all of them.