measurement – The unofficial WordPress Plugin Directory

Smart Convert – Currency & Unit Conversion

The ultimate conversion engine: 153 Currencies, 105+ Units, Custom Unit Builder, GeoIP detection, and a native Gutenberg Block with live previews.

Universal unit converter with 7 templates. Real-time conversion for length, weight, temperature, volume, area, speed, time, and data units.

Universal unit converter with 7 templates. Real-time conversion for length, weight, temperature, volume, area, speed, time, and data units.

WP Unit Converter allows you to convert Length/Distance, Temperature, Time, Weight, Area and Speed metrics in different units of measurement.

Performance plugin from the WordPress Performance Team, which is a collection of standalone performance features.