All tools

Page Weight & Load Time

Estimate page size and load time on different connections.

Total page weight
1.37 MB
Average

Estimated load time (network only)

Slow 3G (400 kbps)28 ms
Fast 3G (1.6 Mbps)7 ms
4G (9 Mbps)1 ms
Cable (50 Mbps)0 ms
Fiber (200 Mbps)0 ms

HTTP Archive median page weight in 2024 was about 2.2 MB on desktop and 2.0 MB on mobile. Most of that is images and JavaScript. Network time is the floor; real load time also includes parse, paint, and execution. Aim under 1 MB if your audience is on slow connections.

About

Enter the size of HTML, CSS, JS, images, fonts, and other assets in KB. Get total page weight and estimated load time on slow 3G, 4G, cable, and fiber. The 2024 HTTP Archive median page is about 2 MB.

How to use

  1. Enter sizes for each asset type.
  2. Read total weight and load times.

FAQ

Why is real load time longer than network time?+

Network is just the floor. Browsers also parse HTML, evaluate scripts, render styles, and paint pixels. JavaScript especially can add seconds. Lighthouse scores look at the full critical rendering path.