A simple procedure for experimental evaluation of breakage and coalescence rates in turbulent liquid-liquid dispersions was developed. Measuring drop size distributions in steady stale photographically and variation of the specific interfacial area with time after a change in the stirrer speed by a laser light attenuation, the necessary parameters were evaluated by curve fitting. Influences of hold-up and stirrer speed were systematically investigated with toluene or o-xylene dispersed in water. A sample set of equations defining variation of breakage and coalescence rates with drop size, hold-up and stirrer speed was derived.