GAUGE

US also gage [verb] - to calculate (an amount), esp. by using a measuring device, or (figurative) to make a judgment about (people's feelings)Use a thermometer to gauge the temperature. [T]I tried to gauge (= guess) the weight of the box. [T]It's difficult to gauge how they'll react. [+ wh- word](figurative) A poll was conducted to gauge consumers' attitudes. [T]