What are the most used baud rates?

This page presents some statistics on baud rates usage. For each transmission speed presented on this baud rate table, a Google search has been done. The number of results in the search engine has been recorded in a spreadsheet. Assuming the number of result in search engine reflect the usage, some statistics are presented.

Number of results in Google for each transmission speed

Search results

The following table shows number of results of each transmission speed:

Bauds Frequency Percentage
9600 37000 14,70%
1200 36600 14,54%
115200 30900 12,27%
2400 29900 11,88%
300 23900 9,49%
19200 18900 7,51%
38400 15100 6,00%
200 12700 5,04%
75 12300 4,89%
4800 11600 4,61%
57600 8810 3,50%
600 7840 3,11%
110 1800 0,72%
28800 1130 0,45%
150 1060 0,42%
230400 936 0,37%
921600 874 0,35%
76800 100 0,04%
50 95 0,04%
1800 80 0,03%
460800 80 0,03%
134 23 0,01%
576000 12 0,00%

Analysis

The following chart presents the number of results for each rate:

Chart presenting the baud rates frequency in Google search results

Not surprisingly, the most common speed is 9600 bauds. This speed is usualy the default speed in in the very popular Arduino IDE.

At the second place, 1200 bauds is probably a relic from the prehistory of computers. Before ADSL and fiber, Internet connections were made with modems connected to a telephone line. As the line was not always of good quality, it was necessary to use low speeds. The standard was 600 or 1200 bauds.

In third place on the podium, the speed of 115200 bauds remains the best comprimise between speed and quality. Moreover, 115200 bauds was the maximum standard speed for RS232 on PC.

The following pie chart presents the same results in term of percentage:

Pie chart of most frequent baud rates

See also


Last update : 11/18/2022