Ratio (disambiguation)
A ratio is a relationship between numbers or quantities.
Ratio may also refer to:
- Ratio (journal), a philosophical quarterly
- Ratio, Arkansas, a community in the United States
- Ratio, or reason, a philosophical concept
- Display aspect ratio, or aspect ratio, the proportional relationship between the width and the height of a display monitor
- Ratio decidendi, a legal concept
- Ratio Institute, a Swedish institute
- Ratio scale, a statistical level of measurement
- Ratio a 2009 book on cooking by Michael Ruhlman