INFORMATION OUTPUT APPARATUS AND INFORMATION OUTPUT METHOD

An information output apparatus including: an acquisition part that acquires vehicle identification information of a trailer; vehicle identification information of a tractor, a measured tractor weight measured by a tractor-uncoupled rear axle weight sensor, a calculation part that calculates a second measured load on the basis of the weight of the tractor stored in the storage in association with the vehicle identification information of the tractor and the measured tractor weight to calculate the carried load by subtracting the weight of the trailer stored in the storage in association with the vehicle identification information of the trailer from a total value of the acquired, measured trailer load and the calculated fifth wheel load, and an output part that outputs information indicating the carried load.