UART Baud Rate Calculator
Estimate a UART clock divider and resulting baud error.
Processing stays in your browser. Assumes baud = clock / (oversampling × integer divider). Register encodings and fractional dividers vary by chip; check the datasheet.
How to use the uart baud rate calculator
Estimate a UART clock divider and resulting baud error. Complete the clock (mhz), target baud, oversampling factor fields above. Choose Run tool, review the output, then copy or download the result.
Example
A 16 MHz clock with factor 16 and divider 104 gives about 9615 baud.
Good to know
Assumes baud = clock / (oversampling × integer divider). Register encodings and fractional dividers vary by chip; check the datasheet.