Image File Size Estimator
Estimate image file size based on resolution, color depth, and compression
Input
Uncompressed Size
5.93 MB
Estimated File Size
2.97 MB
Suggested Format
PNG / TIFF
FAQ
What is color depth?
Color depth is the number of bits used to represent each pixel. 24-bit (16.7 million colors) is standard for photos. 32-bit adds an alpha channel.
What compression ratio should I use?
JPEG compression ratio 0.1-0.3 (high quality), 0.3-0.7 (standard), 0.7-1.0 (high compression). WebP offers similar quality at smaller sizes.
How is uncompressed size calculated?
Uncompressed = Width × Height × Color Depth ÷ 8 (bytes). For 1920×1080 at 24-bit: 1920 × 1080 × 24 ÷ 8 = 6.22 MB.