Kilowatt (kW)
The kilowatt (symbol: kW) is a unit of power in the International System of Units (SI) equal to 1,000 watts:
1 kW=1,000 W
Kilowatts are widely used to measure the power consumption or output of household appliances, small engines, and electric tools. For example, a typical microwave oven might use about 1 kW of power.
In electricity billing, power usage is often measured in kilowatt-hours (kWh), which reflects energy consumption over time.
The kilowatt is a practical unit for everyday energy use, bridging the scale from watts (for small devices) to megawatts (for larger power generation). It helps people understand and compare the power ratings of common electrical equipment.
Picowatt (pW)
The picowatt (symbol: pW) is a unit of power in the International System of Units (SI) equal to one-trillionth of a watt:
1 pW=10−12 W=0.000000000001 W
The prefix "pico-" means one-trillionth, so picowatts measure incredibly tiny amounts of power. This scale is often used in highly sensitive scientific measurements, such as in photodetectors, quantum electronics, and nanoscale devices.
For example, the power of very weak light signals or noise in electronic circuits can be expressed in picowatts.
Picowatts allow researchers and engineers to work with and describe extremely low energy flows with precision in advanced technologies and experimental physics.
No conversions available for power.