A method for operating an ultrasonic fluid meter, preferably an ultrasonic water meter, in a fluid line network, at a measuring rate with one measuring interval, includes generating an ultrasonic signal at specific time points by an ultrasonic converter, the ultrasonic signal passing through a measuring section, and the fluid flow volume being ascertained by an electronic analysis unit based on propagation time and/or a propagation time difference of the ultrasonic signal. The hydraulic force exerted onto the ultrasonic converter by a flow event via the fluid or a change in the hydraulic force is detected by the ultrasonic converter and evaluated in the electronic analysis unit. As a result, the measuring rate is adaptively modified to ascertain the flow volume of fluid and/or the flow volume ascertained over a measuring interval is corrected based on the temporal position of the flow event relative to the measuring interval.