Method of filling bags with metered quantities of bulk products (P1;P2), characterized in that it comprises the following steps: a) providing a first container and a second container having an assigned total volume; b) dividing up each container (B11;B21) into two respective half-volumes (B11a,B11b;B21a,B21b), each half-volume being designed to feed product to a first station or a second station for filling bags, so that each container has one half-volume connected to the first station and one half-volume connected to the second station of the two stations (R1;R2); c) providing a first predefined metered quantity of product inside the first container by dividing up the metered quantity of product into two quantities (Q1P1,Q2P1) equal to approximately half the metered quantity, each fed to a respective half-volume (B11a,B11b) of the first container; d) conveying a bag to the first filling station; e) filling the bag with the quantity (Q1P1) of product of the first half-volume (B11a) of the first container; f) providing a second predefined metered quantity of product inside the second container, dividing up the metered quantity of product into two quantities (Q1P2,Q2P2) equal to approximately half the metered quantity, each fed to a respective half-volume (B21a,B21b) of the second container; g) moving the bag to the second filling station; h) filling the bag with the quantity (Q2P1) of product contained in the second half volume (B11b) of the same first container; i) conveying a second bag to the first filling station; j) filling the second bag with the quantity (Q1P2) of product supplied from the first half-volume (B21a) of the second container; k) moving the second bag to the second station; l) filling the second bag with the second quantity of product (Q2P2) supplied from the second half-volume (B21b) of the same second container; m) feeding a new metered quantity of product to the first container with subdivision into the two half-volumes (B11a, B11b) for a further dispensing cycle; n) conveying the first bag to a sealing station and from here to the exit; o) continuing the cycle with the steps (c-n) for the second or following bags. a) providing a first container and a second container having an assigned total volume; b) dividing up each container (B11;B21) into two respective half-volumes (B11a,B11b;B21a,B21b), each half-volume being designed to feed product to a first station or a second station for filling bags, so that each container has one half-volume connected to the first station and one half-volume connected to the second station of the two stations (R1;R2); c) providing a first predefined metered quantity of product inside the first container by dividing up the metered quantity of product into two quantities (Q1P1,Q2P1) equal to approximately half the metered quantity, each fed to a respective half-volume (B11a,B11b) of the first container; d) conveying a bag to the first filling station; e) filling the bag with the quantity (Q1P1) of product of the first half-volume (B11a) of the first container; f) providing a second predefined metered quantity of product inside the second container, dividing up the metered quantity of product into two quantities (Q1P2,Q2P2) equal to approximately half the metered quantity, each fed to a respective half-volume (B21a,B21b) of the second container; g) moving the bag to the second filling station; h) filling the bag with the quantity (Q2P1) of product contained in the second half volume (B11b) of the same first container; i) conveying a second bag to the first filling station; j) filling the second bag with the quantity (Q1P2) of product supplied from the first half-volume (B21a) of the second container; k) moving the second bag to the second station; l) filling the second bag with the second quantity of product (Q2P2) supplied from the second half-volume (B21b) of the same second container; m) feeding a new metered quantity of product to the first container with subdivision into the two half-volumes (B11a, B11b) for a further dispensing cycle; n) conveying the first bag to a sealing station and from here to the exit; o) continuing the cycle with the steps (c-n) for the second or following bags.