Easily estimate the size of your image files before or after compression with our intuitive Image File Size Calculator. Whether you're a web designer optimizing images, a photographer managing storage, or simply curious about digital graphics, this tool helps you predict storage needs for common formats. Input image dimensions, color depth, and an optional compression ratio to understand how pixel count and color information impact total file size.
Formula:
Uncompressed File Size (Bytes) = (Width (pixels) × Height (pixels) × Bit Depth (bits/pixel)) / 8 bits/byte
Compressed File Size (Bytes) = Uncompressed File Size (Bytes) × (1 - Compression Ratio (decimal))
Where:
- Width: Image width in pixels
- Height: Image height in pixels
- Bit Depth: Number of bits per pixel (e.g., 1, 8, 16, 24, 32)
- Compression Ratio: A value between 0 and 1 (e.g., 0.8 for 80% compression)