Real Serial communication speed

Hello!
I am calculating the time it takes to print a string of characters with "Serial.print" at a speed of 9600 baud. But I noticed that the actual speed is around 10 times lower than 9600, does anyone know to what causes the loss of speed?
Thank you very much!

Regards!

Hamza

I am calculating the time it takes to print a string of characters with "Serial.print" at a speed of 9600 baud.

How and where?

But I noticed that the actual speed is around 10 times lower than 9600, does anyone know to what causes the loss of speed?

My guess is that are mistaking bits for bytes.

you can divide the baud by 10 to see how many characters per second are sent.

A baud is a bit. There are normally 10 bits in a character sent over serial.