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Watt to Kilowatt Converter (W to kW)

Convert Watt (W) to Kilowatt (kW) instantly. Enter any value and get the result immediately.

W → kW Converter

Popular W to kW Values

1 W to kW 2 W to kW ↩ Reverse: kW to W

Watt to Kilowatt Conversion Table

Watt (W)Kilowatt (kW)
0.1 W0.0001 kW
0.5 W0.0005 kW
1 W0.001 kW
2 W0.002 kW
5 W0.005 kW
10 W0.01 kW
20 W0.02 kW
50 W0.05 kW
100 W0.1 kW
200 W0.2 kW
500 W0.5 kW
1000 W1 kW
5000 W5 kW
10000 W10 kW

How to Convert Watts to Kilowatts

The formula to convert Watt (W) to Kilowatt (kW) is extremely simple:

kW = W ÷ 1,000

Reverse formula — kW to W:

W = kW × 1,000

Why divide by 1000? Because "kilo" means one thousand in the metric system. So 1 kW = 1,000 W — just move the decimal point 3 places to the left.

Examples:

What is Watt?

The watt (W) is the SI base unit of power — named after Scottish inventor James Watt. It represents one joule of energy per second. Every electrical appliance has a wattage rating — from a 10W LED bulb to a 2,000W electric geyser. The wattage tells you how much electricity the device consumes per hour.

What is Kilowatt?

A kilowatt (kW) equals 1,000 watts. It is the practical unit for measuring electricity consumption in homes and businesses. Your electricity bill is measured in kilowatt-hours (kWh) — commonly called "units" in India. 1 kWh = 1 kW running for 1 hour. A 1,000W (1 kW) appliance running for 1 hour uses 1 unit of electricity — which costs approximately ₹7-9 in India.

Home Appliances — Watts to kW Chart

ApplianceWatts (W)Kilowatt (kW)Units/Hour
LED bulb10 W0.01 kW0.01 units
Ceiling fan75 W0.075 kW0.075 units
Laptop65 W0.065 kW0.065 units
Refrigerator150 W0.15 kW0.15 units
LED TV (43 inch)100 W0.1 kW0.1 units
Washing machine500 W0.5 kW0.5 units
Microwave oven1,200 W1.2 kW1.2 units
Electric geyser2,000 W2 kW2 units
1-ton AC3,517 W3.517 kW3.517 units
1.5-ton AC5,275 W5.275 kW5.275 units

How to Calculate Electricity Bill Using W to kW

Practical example for calculating your monthly electricity bill:

Electric Geyser = 2,000 W = 2 kW
Used 1 hour per day: 2 kW × 1 hr = 2 kWh/day
Monthly units: 2 × 30 = 60 kWh/month
At ₹8/unit: ₹480/month just for geyser

1.5-ton AC = 5,275 W = 5.275 kW
Used 8 hours per day: 5.275 × 8 = 42.2 kWh/day
Monthly units: 42.2 × 30 = 1,266 kWh/month
At ₹8/unit: ₹10,128/month

Watt, kW, MW — Power Unit Scale

UnitSymbolEquals in WattsCommon Use
WattW1 WBulbs, small devices
KilowattkW1,000 WHome appliances, EVs
MegawattMW1,000,000 WPower plants
GigawattGW1,000,000,000 WNational grids

Frequently Asked Questions

How do I convert watts to kilowatts?

Divide W by 1,000. Formula: kW = W ÷ 1,000. Example: 2,500 W ÷ 1,000 = 2.5 kW. Just move the decimal point 3 places to the left.

How many watts is 1 kilowatt?

1 kW = 1,000 watts. The prefix "kilo" always means one thousand. So kilowatt = 1,000 watts.

What is 1,500 watts in kilowatts?

1,500 W = 1.5 kW. Formula: 1,500 ÷ 1,000 = 1.5 kW. This is the power of a typical room heater or ceiling fan set.

How do I calculate electricity bill from watts?

Convert W to kW (÷1000), multiply by hours used per day to get kWh (units). Multiply by your electricity rate. Example: 2,000W geyser × 1 hr = 2 kWh = 2 units. At ₹8/unit = ₹16/day.

What is 100 watts in kilowatts?

100 W = 0.1 kW. Formula: 100 ÷ 1,000 = 0.1 kW. A 100W appliance running for 10 hours uses 1 kWh (1 unit) of electricity.

What is 3,000 watts in kilowatts?

3,000 W = 3 kW. Formula: 3,000 ÷ 1,000 = 3 kW. A 3 kW appliance running for 1 hour uses 3 kWh (3 units) of electricity.