Other Uses
- University of California, Berkeley, nicknamed Cal
- cal (Unix), a standard program on Unix that prints an ASCII calendar of the given month or year
- Calanthe, an orchid genus abbreviated cal. in horticulture
- Calcium hydroxide, also known as "cal"
- caliber, a measurement of the interior diameter of a tube, often in reference to rifles or pistols
- Cal Air International, an airline based in the United Kingdom
- Cal Yachts, originally the Jensen Marine Corporation, founded in 1957
- calorie, unit of energy
- Carolinian language ISO 639-3 code
- China Airlines, ICAO airline code
- Campbeltown Airport, IATA airport code
- Continental Airlines, an American airline with the New York Stock Exchange symbol of "CAL"
- cal and cal., abbreviations of calibrated years
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