Toolalize

Watt to Kilowatt

W
Kilowatt (kW)
kW

kW = W × 1.0000e-3

Quick Reference: Watt to Kilowatt

WkW
1000.1
5000.5
7500.75
1,0001
1,5001.5
2,0002
3,0003
5,0005
7,5007.5
10,00010
20,00020
100,000100

How to Convert Watt to Kilowatt

Formula:

kW = W × 1.0000e-3

Example:

1500 W = 1.5 kW

  1. Enter the value in Watt you want to convert
  2. The result is calculated automatically
  3. Copy your result in Kilowatt or continue converting

About Watt and Kilowatt

Watts (W) and kilowatts (kW) are the two most common units for measuring electrical power. One kilowatt equals exactly 1,000 watts. Appliance labels list power in watts; electricity bills, solar panels, and EV chargers use kilowatts (and kilowatt-hours).

Common Uses for This Conversion

Reading electricity bills (your 2,000 W clothes dryer runs at 2 kW), sizing a solar panel system, comparing EV charger speeds (7.4 kW home charger = 7,400 W), and understanding appliance energy use before buying.

💡Did You Know?

The kilowatt-hour (kWh) on your electricity bill is simply 1 kW running for 1 hour, or 3,600,000 joules. A typical US home uses about 10,500 kWh per year, meaning the average continuous power draw is roughly 1.2 kW.

Frequently Asked Questions

1 kW = 1,000 W. Divide any watt value by 1,000 to get kilowatts, or multiply kilowatts by 1,000 to get watts.
Appliances list their power in watts (e.g. a 1,500 W kettle = 1.5 kW). Your electricity bill charges in kWh — a 1.5 kW kettle running for 2 hours uses 3 kWh.
7.4 kW = 7,400 W. A typical home EV charger delivers 7.4 kW, adding roughly 30–40 km of range per hour depending on the vehicle.
Solar panels are rated in watts-peak (Wp) — a 400 Wp panel produces 400 W under ideal conditions. Ten 400 Wp panels form a 4,000 W (4 kW) system that in the US or EU can generate around 4,000–6,000 kWh per year.

Related Conversions

Looking for more conversions?

View all Power units →