The calibration of the BCD stellar classification in absolute magnitudes (classification in three parameters λ1, D, Φb
) was used to determine the distance modulus of the Large Magellanic Cloud. The described method makes use of the spectrophotometric parameters of B and A supergiants of the Large Cloud and gives a value of the distance modulus which is independent from other determinations, in particular from those which are based on the RR Lyrae and the Cepheid variables. The value found for the distance is slightly smaller than those generally admitted. The results are still based only on a limited number of measurements and new observations are in process; however, it seems doubtful that one will obtain much larger values. In other respects, the observations have shown that the parameter λ
1 was still sensitive to luminosity for the B and A stars brighter than M = −8 and that the calibration of the λ
D diagram in absolute magnitudes can be extended up to M = −9.