There is provided a radar device. A Fourier transform unit decomposes each of respective beat signals into a plurality of frequency components. A bearing computing unit specifies arrival angles of reflected-wave signals based on peak frequency components included in the plurality of frequency components, and calculates the signal intensities of arrival angle components of the reflected waves with respect to a plurality of neighborhood frequency components of the peak frequency components when the plurality of arrival angles of the reflected-wave signals are specified. A calculating unit selects one frequency component having the highest signal intensity from among the plurality of neighborhood frequency components, with respect to each of the arrival angles specified at a plurality of frequencies, and computes a distance between the radar device and a target on the basis of the one frequency component selected with respect to each of the arrival angles.