Pressure Converter
Convierte entre hectopascales (QNH) y pulgadas de mercurio (altimeter setting). Norteamerica usa inHg; el resto del mundo usa hPa.
About altimeter pressure
The altimeter setting is essential for flying the correct altitude. A 1 hPa error is roughly 30 feet of altimeter indication.
When flying between regions that use different units, pilots often need to convert between hPa and inHg.