How much larger is PNG than JPG?

PNG averages 3.8 bits per pixel versus JPEG's 2.0, according to HTTP Archive data. A 1920x1080 screenshot is roughly 1.2 MB as PNG and 250 KB as JPG at 85% quality. PNG compression is lossless, preserving every pixel exactly. JPG compression is lossy, discarding visual data the eye does not easily notice, saving 60-80% of file size with no visible difference at quality settings above 80%.

PNG ↔ JPG

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When should I use PNG vs JPG?

Choosing between PNG and JPG depends on your image content and how you plan to use it. HTTP Archive data shows PNG accounts for 28.4% of web image requests and JPEG for 32.4%, making them the two most-used image formats on the web. PNG averages 3.8 bits per pixel versus JPEG's 2.0, so a 1920x1080 screenshot is roughly 1.2 MB as PNG and 250 KB as JPG at 85% quality.

Choose PNG when you need

Transparency: Logos, icons, and overlays with see-through areas
Sharp edges: Text, screenshots, diagrams, and UI elements
Lossless quality: Images you'll edit again later
Flat colors: Graphics with limited color palettes

Choose JPG when you need

Small files: Photos for web, email, or limited storage
Photographs: Natural scenes with gradual color transitions
Compatibility: Images that need to work everywhere

File size tradeoff

PNG compression is lossless: every pixel is preserved exactly as the original. JPG compression is lossy, discarding visual data the eye does not easily notice. For photographs, this tradeoff saves 60-80% of file size with no visible difference at quality settings above 80%. For screenshots and text, PNG is the better choice because JPG compression creates visible artifacts around sharp edges.

Read our full PNG vs JPG comparison guide

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