Convert kilowatt [kW] to attojoule/second [aJ/s] 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.

Attojoule per Second [aJ/s]

Attojoule per second is an extremely tiny unit of power in the International System of Units (SI).

• 
  

  Attojoule (aJ) equals $10^{-18}$ joules (0.000000000000000001 joule).

  
  
• 
  

  When expressed as aJ/s, it measures the rate of energy transfer or work done at a scale of attojoules every second.

  
  
• 
  

  Since 1 joule per second = 1 watt, then:

  
  

This unit is relevant in ultra-sensitive physics experiments, quantum computing, and nanotechnology where power levels are extraordinarily small.