Convert kilowatt [kW] to femtowatt [fW] Online | Free power Converter

Kilowatt (kW)

The kilowatt (symbol: kW) is a unit of power in the International System of Units (SI) equal to 1,000 watts:

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.

Femtowatt (fW)

The femtowatt (symbol: fW) is a unit of power in the International System of Units (SI) equal to one-quadrillionth of a watt:

The prefix "femto-" means one-quadrillionth, so femtowatts measure extraordinarily tiny amounts of power. This unit is used in highly sensitive scientific instruments and research fields such as quantum physics, nanotechnology, and astrophysics.

For example, power levels in ultra-low noise amplifiers or in the detection of faint cosmic signals can be expressed in femtowatts.

Femtowatts enable the measurement and discussion of power at the smallest scales, essential for cutting-edge science and technology.