Calibration is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy. Learn about the formal definition, the modern calibration processes, the quality of calibration , the measuring devices and instruments, and the instrument calibration prompts. Calibration is important because it improves measurement accuracy, maintains consistency, and ensures compliance with industry standards. Without calibration , instruments may give incorrect readings, leading to faulty designs, poor-quality products, or unsafe conditions. Learn the fundamentals of calibration , its importance in measurement accuracy, and how Fluke Calibration supports precision across various industries. Understand what calibration is, its purpose in ensuring measurement accuracy, and how it improves efficiency, compliance, and safety in various industries.