To calculate the wavelength of light with a frequency of 5.58×10^14 Hz, use the equation c = fλ, where c is the speed of light. Rearranging the formula gives λ = c/f. The speed of light in a vacuum is approximately 3.00×10^8 m/s, which can be used alongside the given frequency to find the wavelength. By substituting the values into the equation, the wavelength can be determined without needing any distance measurement. This method effectively allows for the calculation of wavelength using frequency alone.