Compression Savings Calculator

Summary

Enter your original file size and choose a compression algorithm to instantly see how many bytes you save and how much bandwidth you recover.

How it works

1. Enter the original (uncompressed) file size in bytes, KB, or MB.
2. Select the compression algorithm: gzip (typical 60–70% reduction) or brotli (typically 15–25% better than gzip).
3. Optionally enter your monthly request count to see total bandwidth cost savings.
4. The calculator applies the expected compression ratio for the chosen algorithm and file type.
5. Results show compressed size, bytes saved, percentage reduction, and bandwidth figures.

Use cases

• Estimate how much bandwidth enabling gzip on your web server will save.
• Compare gzip vs. brotli savings before configuring your CDN or nginx.
• Calculate monthly bandwidth cost reduction for high-traffic websites.
• Justify enabling compression to stakeholders with concrete byte savings.
• Plan asset optimization strategies for Core Web Vitals improvements.
• Check whether a large JS or CSS bundle benefits enough from compression to skip code-splitting.

Frequently Asked Questions