Savings calculator
Bandwidth savings only. Faster load times and better Core Web Vitals are upside this calculator doesn't count.
AWS CloudFront, GCP, Azure typically $0.05–$0.12/GB
Licensed per site. A Business license covers unlimited servers per site, so the server count behind a site doesn't change the price.
Your estimated savings
Annual savings
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ROI
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Illustrative estimate, not measured product output. We measure 48–69% page-weight reduction across our demo pages; this calculator uses a conservative 60%. Actual savings depend on your content mix, original image formats, and quality settings.
Show methodology — monthly breakdown
Current monthly bandwidth
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Optimized bandwidth
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Bandwidth saved
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Monthly bandwidth savings
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Monthly ModPageSpeed cost
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Net monthly savings
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Illustrative LCP improvement: ~40% faster — an estimate derived from the assumed 60% page-weight reduction, not a measured product output. Industry studies (Google, Deloitte) report that a 100ms improvement in load time can lift conversions by roughly 1–2%.
Bandwidth comparison
Production use requires a commercial license — but the software never locks you out.
Beyond bandwidth savings
This calculator only estimates bandwidth cost reduction. The full value of web performance optimization includes:
- • Better Core Web Vitals — Smaller pages load faster, improving LCP and reducing CLS. Google uses CWV as a ranking signal. That means this impacts your revenue, not just your metrics.
- • Higher conversions — Industry data shows every 100ms of load time improvement can increase conversions by 1–2%.
- • No engineering time — No build pipeline, no manual srcset, no image optimization workflow. Automatic and continuous.
- • Flat per-site pricing vs. CDN usage fees — ModPageSpeed costs $99/site/month regardless of traffic or server count. CDN and image-CDN optimization (Cloudflare Business $200/mo per site, Cloudinary usage-based) scales with your bill.
The estimate above counts image and CSS/JS savings from the variant-aware cache in ModPageSpeed 2.0. The same PSOL optimization core also runs self-hosted inside Apache, nginx, or IIS as mod_pagespeed 1.15, where it minifies CSS/JS and transcodes images to WebP. Both products cut the same kind of bytes. See the optimizations side by side on the filter examples.