Convert Baud and Bit Rate
Simple calculator for the symbol rate in baud and the transmission rate in bit/s. Baud is one symbol per second. With binary coding, one symbol corresponds to one bit, then baud and bit rate are the same. However, other encodings are also used, for example 5-PAM works with 2 bits per symbol.
Please enter two values and select the units as required, the third value will be calculated.
Examples: at a transmission rate of 1 Gbit/s (gigabits per second) and 4 bits per symbol, the symbol rate is 250 MBaud (megabauds). At 2 bits per symbol, the symbol rate increases to 500 MBaud, at 1 of course to 1 GBaud (gigabaud).
Baud is the unit for the symbol rate in transmission technology. The symbol rate indicates how many symbols are transmitted in a period of time; for baud, this period of time is one second. If the symbol set only contains 0 and 1, then it is a binary coding. The size of the symbol set is bits per symbol, the smaller this is, the lower the transmission rate and the symbol rate. This of course also means that the transmission speed in practice is lower. However, lower rates can ensure greater transmission reliability, i.e. a lower error rate.
The baud was named after the French engineer Jean-Maurice-Émile Baudot, who researched the field of telegraphy in the second half of the 19th century. The name was given in his honor 23 years after his death in 1926, when telegraphy was already in decline due to the increasing popularity of the telephone. The baud was initially a measure of the telegraphic step speed. Although telegraphy has long since ceased, the transmission of data in the form of symbols has been preserved to this day, as has the baud as a measure for data transmission based on symbols.
Last updated on 06/29/2025. Author: Jürgen Kummer
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