b2KIT

Performance Budget Calculator

Set and validate performance budgets for page weight, request counts, and load-time targets by connection type.

Resource Allocations (KB)

40.0%
10.0%
30.0%
12.0%
6.0%
2.0%

Budget Allocation

Jav
CSS
Ima
Fon
500 KB used500 KB budget
0 KB remaining (100% used)

Estimated Load Time (download only)

10.00s
Slow 3G
50 KB/s
2.50s
Fast 3G
200 KB/s
0.13s
4G / LTE
4000 KB/s
0.04s
WiFi
12500 KB/s

Legend

JavaScript: 200 KB
CSS: 50 KB
Images: 150 KB
Fonts: 60 KB
HTML: 30 KB
Other: 10 KB

How to Use Performance Budget Calculator

  1. 1

    Set target load time

    Enter your desired page load time in seconds.

  2. 2

    Enter resource sizes

    Add sizes for JavaScript, CSS, images, and fonts.

  3. 3

    Check the budget

    See if your total resources fit within the performance budget.

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