To provide a new electric cutting tool capable of accurately calculating a cutting depth or an inclination angle of a circular saw, and displaying the calculation result by a display section disposed at the position easy to see from an operator.

The electric cutting tool 10 includes a surface plate 11, a body portion 21 tiltably provided on the surface plate 11, and the circular saw blade 41 capable of rotating by means of driving power from a driving means 25 provided on the body portion 21. The electric cutting tool 10 is equipped with movement amount measuring means 50 (51, 52) for measuring a movement amount of a tilting operation of the body portion 21 with respect to the surface plate 11, a calculation section 61 for calculating the cutting depth of the circular saw blade 41 or the inclination angle of the body portion 21 on the basis of the movement amount obtained by the movement amount measuring means 50 (51, 52), and the display section 62 for displaying the cutting depth calculated by the calculation section 61 or the inclination angle of the body portion 21.