Unit Converter

Every unit in a category is defined against a base unit — meters for length, kilograms for weight, liters for volume — so any conversion is two steps: into the base, then out to the target. Temperature is the exception: Celsius, Fahrenheit, and Kelvin have offset zeros, so they convert by formula (°F = °C × 9/5 + 32) rather than by a simple factor.

A meter is about 10% longer than a yard; a kilogram is 2.2 pounds; a liter is just over a quart; 100 km/h is 62 mph; and room temperature is 20–22 °C or 68–72 °F. Anchors like these let you sanity-check any converted number at a glance.