measure

計る(はかる)	(50%) Temperature, height, depth. If you’re measuring a chair or your mom’s stretch marks, use this one.

測る(はかる)	Measure, but usually used in a medical or scientific context. (blood pressure, air pressure). Also used for area, distance, sound decibels, angle, capacity.

量る(はかる)	Used mostly about weight, but also quantity or volume.