Method for weighing a wind turbine blade extending between a root end and a tip end thereof, said method including: - providing a respective tip load measurement gauge and root load measurement gauge; - providing a suspending arrangement configured for suspending said wind turbine blade from said tip load measurement gauge at a tip load point and from said root load measurement gauge at a root load point, said tip and root load points being at respective root and tip load measurement reference points which are at known locations in relation to the geometry of said wind turbine blade; - suspending said wind turbine blade at respective said tip and root load points in a horizontal orientation; and - recording a tip load at said tip load point and a root load at said root load point from respective said load measurement gauges, said method being additionally characterised by: - providing a weighing area including a ground surface; and - placing a first distance sensor at a first location on said ground surface; - placing a second distance sensor at a second location on said ground surface; - suspending said wind turbine blade from said tip load gauge and from said root load gauge such that a said root end thereof is suspended proximate said first distance sensor and a said tip end thereof is suspended proximate said second distance sensor; - measuring a first distance between said first distance sensor and a said root portion of said wind turbine blade; - measuring a second distance between said second distance sensor and a said tip portion of said wind turbine blade; - adjusting the horizontality of said wind turbine blade in response to said first and second distance readings until the wind turbine blade adopts a predefined orientation and prior to said step of recording said tip load and said root load; and - deriving, using the load values obtained from said root and said tip load measurement gauges (41, 42), a center of gravity position of said wind turbine blade and/or a balanced weight value for said wind turbine blade at a specific distance along a longitudinal extent of said wind turbine blade. - providing a respective tip load measurement gauge and root load measurement gauge; - providing a suspending arrangement configured for suspending said wind turbine blade from said tip load measurement gauge at a tip load point and from said root load measurement gauge at a root load point, said tip and root load points being at respective root and tip load measurement reference points which are at known locations in relation to the geometry of said wind turbine blade; - suspending said wind turbine blade at respective said tip and root load points in a horizontal orientation; and - recording a tip load at said tip load point and a root load at said root load point from respective said load measurement gauges, - providing a weighing area including a ground surface; and - placing a first distance sensor at a first location on said ground surface; - placing a second distance sensor at a second location on said ground surface; - suspending said wind turbine blade from said tip load gauge and from said root load gauge such that a said root end thereof is suspended proximate said first distance sensor and a said tip end thereof is suspended proximate said second distance sensor; - measuring a first distance between said first distance sensor and a said root portion of said wind turbine blade; - measuring a second distance between said second distance sensor and a said tip portion of said wind turbine blade; - adjusting the horizontality of said wind turbine blade in response to said first and second distance readings until the wind turbine blade adopts a predefined orientation and prior to said step of recording said tip load and said root load; and - deriving, using the load values obtained from said root and said tip load measurement gauges (41, 42), a center of gravity position of said wind turbine blade and/or a balanced weight value for said wind turbine blade at a specific distance along a longitudinal extent of said wind turbine blade.