A distance measurement apparatus using time of flight, the distance measurement apparatus comprising: a light source to emit measurement light having a predetermined frequency to an object based on a light-emission timing output from a light-emission control unit; a light receiving unit to receive the measurement light reflected from the object based on a light-receiving timing output from a light-receiving control unit; the light-emission control unit; the light-receiving control unit; and a calculation unit to calculate a measurement target distance as the total distance given by the sum of the distance between the light source and the object and the distance between the light receiving unit and the object, based on the measurement light received by the light receiving unit, characterized in that the relation described below is satisfied: σ 1 > σ 2 where σ1 denotes a periodic measurement accuracy fluctuation amount for an object at a total distance d 1 as the measurement target distance, and σ2 denotes a periodic measurement accuracy fluctuation amount for an object at a total distance d 2 as the measurement target distance, the total distance d 1 and the total distance d 2 satisfying conditional expressions,, and: d 0 2 = c 4 πf φ 0 d 1 2 = c 4 πf π 2 + φ 0 mod π 2 d 2 2 = c 4 πf π 2 − π 8 + φ 0 mod π 2 where d 0 denotes a maximum total distance obtained with a predetermined measurement accuracy, as calculation result of the calculation unit, f denotes the frequency of the measurement light, φ 0 denotes a phase of the measurement light, and φ 0 mod(π/2) denotes remainder obtained by dividing φ 0 by π/2. a light source to emit measurement light having a predetermined frequency to an object based on a light-emission timing output from a light-emission control unit; a light receiving unit to receive the measurement light reflected from the object based on a light-receiving timing output from a light-receiving control unit; the light-emission control unit; the light-receiving control unit; and a calculation unit to calculate a measurement target distance as the total distance given by the sum of the distance between the light source and the object and the distance between the light receiving unit and the object, based on the measurement light received by the light receiving unit, characterized in that the relation described below is satisfied: σ 1 > σ 2 where σ1 denotes a periodic measurement accuracy fluctuation amount for an object at a total distance d 1 as the measurement target distance, and σ2 denotes a periodic measurement accuracy fluctuation amount for an object at a total distance d 2 as the measurement target distance, the total distance d 1 and the total distance d 2 satisfying conditional expressions,, and: d 0 2 = c 4 πf φ 0 d 1 2 = c 4 πf π 2 + φ 0 mod π 2 d 2 2 = c 4 πf π 2 − π 8 + φ 0 mod π 2 where d 0 denotes a maximum total distance obtained with a predetermined measurement accuracy, as calculation result of the calculation unit, f denotes the frequency of the measurement light, φ 0 denotes a phase of the measurement light, and φ 0 mod(π/2) denotes remainder obtained by dividing φ 0 by π/2. σ1 denotes a periodic measurement accuracy fluctuation amount for an object at a total distance d 1 as the measurement target distance, and σ2 denotes a periodic measurement accuracy fluctuation amount for an object at a total distance d 2 as the measurement target distance, the total distance d 1 and the total distance d 2 satisfying conditional expressions,, and: d 0 2 = c 4 πf φ 0 d 1 2 = c 4 πf π 2 + φ 0 mod π 2 d 2 2 = c 4 πf π 2 − π 8 + φ 0 mod π 2 where d 0 denotes a maximum total distance obtained with a predetermined measurement accuracy, as calculation result of the calculation unit, f denotes the frequency of the measurement light, φ 0 denotes a phase of the measurement light, and φ 0 mod(π/2) denotes remainder obtained by dividing φ 0 by π/2. d 0 denotes a maximum total distance obtained with a predetermined measurement accuracy, as calculation result of the calculation unit, f denotes the frequency of the measurement light, φ 0 denotes a phase of the measurement light, and φ 0 mod(π/2) denotes remainder obtained by dividing φ 0 by π/2.