An estimation method of the residual range of an electric vehicle, which defines how long the batteries have sufficient energy to allow the vehicle to travel, comprising at least one electric battery and at least one motor configured to use, at least in part, the energy of said at least one battery for enabling the movement of said electric vehicle, said method comprising: • a first initialisation step wherein a real energy (E r) and a state of charge of said at least one battery are calculated, said state of charge of said at least one battery of the vehicle being calculated using the equation: Soc us = 100 % − avg DOD − S min ∗ 100 / Smax where avg is an average DOD on the at least one battery of the vehicle, said DOD being in turn is a measured depth of discharge of the battery, defined as 100% minus a measured state of charge of the battery, and where S min, S max represent respectively a minimum and a maximum threshold value, memorized and prefixed, of the state of charge of said at least one battery, and said real energy ( E r) being defined and calculated through the further equation: E r = E ∗ K ae where E r defines said real energy, E is the measured available energy of said at least one battery, and K ae is a dimensionless corrective coefficient suitable for correcting said available energy previously stored as a function of a discharge time of said battery,, • a second calculation step of an average usable energy value (Eu avg) of said at least one battery and of the average distance travelled (X avg) by said vehicle as averages of respective values sampled at predetermined intervals at a i-th time, where said i-th value is sampled at a pre-set time interval provided that a distance X(i) travelled in such interval of time is greater than a threshold distance, said usable energy ( E u ( i)) being defined and calculated through the equation: E u i = E r i ∗ Soc us i ∗ 0,01 where E u ( i) defines said usable energy, Soc us ( i) is Soc us calculated at the i-th time, and E r ( i) is E r calculated at the i-th time, • a third step wherein for each sampling, a current available energy coefficient is calculated and defined through the equation:: Krc avg = X avg / Eu avg where krc avg defines said current available energy coefficient, X avg is the average distance travelled, and Eu avg is the average usable energy value (Eu avg), • a fourth step wherein the residual range of the vehicle is estimated as residual kilometres or additionally residual operating time of the vehicle as a function of said current available energy coefficient ( Krc avg). • a first initialisation step wherein a real energy (E r) and a state of charge of said at least one battery are calculated, said state of charge of said at least one battery of the vehicle being calculated using the equation: Soc us = 100 % − avg DOD − S min ∗ 100 / Smax where avg is an average DOD on the at least one battery of the vehicle, said DOD being in turn is a measured depth of discharge of the battery, defined as 100% minus a measured state of charge of the battery, and where S min, S max represent respectively a minimum and a maximum threshold value, memorized and prefixed, of the state of charge of said at least one battery, and said real energy ( E r) being defined and calculated through the further equation: E r = E ∗ K ae where E r defines said real energy, E is the measured available energy of said at least one battery, and K ae is a dimensionless corrective coefficient suitable for correcting said available energy previously stored as a function of a discharge time of said battery,, • a second calculation step of an average usable energy value (Eu avg) of said at least one battery and of the average distance travelled (X avg) by said vehicle as averages of respective values sampled at predetermined intervals at a i-th time, where said i-th value is sampled at a pre-set time interval provided that a distance X(i) travelled in such interval of time is greater than a threshold distance, said usable energy ( E u ( i)) being defined and calculated through the equation: E u i = E r i ∗ Soc us i ∗ 0,01 where E u ( i) defines said usable energy, Soc us ( i) is Soc us calculated at the i-th time, and E r ( i) is E r calculated at the i-th time, • a third step wherein for each sampling, a current available energy coefficient is calculated and defined through the equation:: Krc avg = X avg / Eu avg where krc avg defines said current available energy coefficient, X avg is the average distance travelled, and Eu avg is the average usable energy value (Eu avg), • a fourth step wherein the residual range of the vehicle is estimated as residual kilometres or additionally residual operating time of the vehicle as a function of said current available energy coefficient ( Krc avg).