To change something into a different form or properties; transmute; transform. The factory converts raw materials into finished products.
To cause to adopt a different religion, political doctrine, opinion, etc. She was determined to convert her friend to her way of thinking.
To exchange for something of equal value. He converted his dollars into euros before traveling to Europe.
To score an extra point or points after a touchdown in American football. The team successfully converted the touchdown with a two-point conversion.
To change (a unit of measurement) to another unit of measurement. You need to convert the temperature from Celsius to Fahrenheit.