Power meter

Power meter may refer to:


 * Electricity meter measures electrical energy (electrical power supplied to a residence, business or machine over time)
 * Wattmeter measures the electrical power circulating in any electric circuit
 * Microwave power meter measures power in a microwave signal
 * Optical power meter measures power in an optical signal
 * Google PowerMeter is a tool to track a household's energy usage
 * A cycling power meter measures the power output of a bicycle rider
 * Health meter, a video game mechanic