| Acronym | Definition |
|---|
| CAL | Caliber |
| CAL | Calendar |
| CAL | California (old style) |
| CAL | University of California, Berkeley |
| CAL | Calibration |
| CAL | Calorie |
| CAL | Calculus |
| CAL | Calibrate |
| CAL | Calgary, Alberta |
| CAL | Client Access License (Microsoft) |
| CAL | Continental Airlines, Inc. (stock symbol) |
| CAL | Center for Applied Linguistics |
| CAL | Computer Assisted Learning |
| CAL | Computer-Aided Learning |
| CAL | Computer Aided Learning |
| CAL | Cyberathlete Amateur League (gaming) |
| CAL | Calando (Music, gradually slower, and with decreasing volume of tone) |
| CAL | Computer-Aided Logistics |
| CAL | Large Calorie (referring to heating 1 kilogram of water 1 degree Celsius) |
| CAL | Small Calorie (referring to heating 1 gram of water 1 degree Celsius) |
| CAL | Cakewalk Application Language |
| CAL | CAN Application Layer (part of CAN protocol) |
| CAL | Common Application Language |
| CAL | Center for Army Leadership |
| CAL | Cornell Aeronautical Laboratory |
| CAL | Chronic Airflow Limitation |
| CAL | Café Au Lait spots |
| CAL | Centre Antoine Lacassagne |
| CAL | China Airlines, Taiwan (ICAO code) |
| CAL | Canadian Agriculture Library |
| CAL | Conférence Francophone sur les Architectures Logicielles |
| CAL | Capital Allocation Line |
| CAL | Confirmatory Action Letter |
| CAL | Customer Access Line |
| CAL | Cell-Assisted Lipotransfer (soft-tissue augmentation surgery) |
| CAL | Center for Anabaptist Leadership (Pasadena, California) |
| CAL | Conversational Algebraic Language |
| CAL | Chronic Airway Limitation |
| CAL | Confined Area Landing |
| CAL | Center for Accelerated Learning (now Tutoring and Academic Success Center; Stark State College of Technology) |
| CAL | Current Access Level |
| CAL | Continuous Acquisition and Lifecycle Support |
| CAL | Common Assembly Language |
| CAL | Computer Animation Language |
| CAL | Computer-Aided Lofting |
| CAL | Crash and Learn (airplane simulator gaming) |
| CAL | System Calibration Test |
| CAL | Cocoa Association of London Ltd. |
| CAL | Command Authorization List |
| CAL | Calibration Procedures/Instructions (TMINS) |
| CAL | Chemical Assessment Laboratory |
| CAL | Channel Authorization Level |
| CAL | CORONA, ARGON, LANYARD (US intelligence) |
| CAL | Centro de Atención en Línea (Colombia) |
| CAL | Credits to Avoid Lapse (insurance) |
| CAL | Classified Action Log |
| CAL | Complex ANDing Logarithm |
| CAL | Competitive Analysis Logic (Chart) |