After first compression: 4.2 × (1 − 0.40) = 4.2 × 0.60 = <<4.2*0.6=2.52>>2.52 TB

Sun, 03 May 2026 14:24:45 +0000

Understanding Compression Efficiency: How Compressing 4.2 TB Reduces Size to 2.52 TB When dealing with large amounts of digital data—whether in storage, cloud services, or data transmission—compression plays a crucial role in optimizing efficiency. One common calculation shows how data size shrinks after compression, illustrating both the power and value of modern storage solutions. The Math Behind Data Compression Consider a file or dataset of 4.2 terabytes (TB) that undergoes compression with a 40% reduction rate. This means the data shrinks by 40% of its original size. Mathematically, we express this as: