PROBLEM TO BE SOLVED: To provide a wheel for a wheelchair, which enables the direct and accurate measurement of a vibration and an impact applied to the wheelchair, the wheelchair, and a system for measuring a travel state of the wheelchair.SOLUTION: A wheel 1 for a wheelchair includes: a wheel 2 that has an axle 3 and a rotor 4 rotated in such a manner that the axle 3 serves as a rotational axis; a support 11 that rotatably supports the wheel 2; and a measurement part 21 that measures at least any one of the acceleration, impact load and travel sound of the wheel 2. The measurement part 21 is mounted on the rotor 4. Preferably, the wheel 1 for the wheelchair is attached as a front wheel of the wheelchair.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】車椅子に加わる振動や衝撃を直接かつ正確に計測することができる車椅子用車輪、車椅子および車椅子の走行状況計測システムを提供する。【解決手段】車椅子用車輪1は、車軸3と、該車軸3を回転軸として回転する回転体4と、を有する車輪2と、該車輪2を回転可能に支持している支持体11と、車輪2の加速度、衝撃荷重、走行音の少なくともいずれか1つを計測する計測部21と、を有しており、計測部21が、回転体4に取り付けられている。上記車椅子用車輪1は、車椅子の前輪として取り付けられるものであることが好ましい。【選択図】図2