Everyday conversions, memorized for you
1 mile ≈ 1.609 km · 1 kg ≈ 2.205 lb · 1 inch = 2.54 cm · 1 foot = 30.48 cm · °F = °C × 9/5 + 32. This tool handles the exact math (and Kelvin, stones, ounces and more) so you never mis-convert a recipe, a shipment or a workout weight.
Results update live in both directions — swap the units to reverse the conversion.