kWh to Watts Calculator

Convert kWh (energy) to Watts (power) instantly. Ideal for electricians, students and homeowners.

Primary: kwh to watts calculator — Secondary: convert kwh to watts, 1 kwh is equal to watt, watts to kwh.

Energy (kWh)

Time (hours)

Output Unit

Result

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Enter values and click Convert. Example: 1 kWh in 1 hour = 1000 W

Tip: Use CSV to save results. Click Example to load sample values.

kWh Calculator Formula

A watt (W) is a measure of power, while a kilowatt-hour (kWh) is a measure of energy equivalent to 1,000 watt-hours, or 1,000 watts of power used for 1 hour.

So, to convert kilowatt-hours to watts:

Multiply the energy in kilowatt-hours (kWh) by 1,000 to convert to watt-hours (Wh).
Divide by the time in hours.

Watts = (kWh × 1000) / Hours

1 kWh used in 1 hour → 1000 W
2 kWh used in 4 hours → 500 W
0.5 kWh used in 2 hours → 250 W

Quick Guide: kWh vs Watts

kWh (kilowatt-hour) is an energy unit. Watt (W) is a power unit. Energy = Power × Time. Use the calculator above to convert energy (kWh) into equivalent power (W) for a given duration.

🔗 References: BEE India IEC Standards NEC (NFPA)

Common Kilowatt-Hour to Watt Conversions

Here’s a quick reference table that shows how kWh converts to Watts depending on the usage time. This will help electricians and students estimate loads quickly.

Energy (kWh)	Time (Hours)	Power (Watts)	Practical Example
1 kWh	1 hr	1000 W	1 HP Water Pump for 1 hour
1 kWh	2 hrs	500 W	Microwave oven on medium for 2 hours
2 kWh	4 hrs	500 W	Ceiling fan (75 W) ≈ 27 hours total
5 kWh	5 hrs	1000 W	Electric Iron across 5 hours
10 kWh	10 hrs	1000 W	1-Ton AC running for 10 hours

✅ Quick tip: Use the formula Watts = (kWh × 1000) ÷ Hours to make your own conversion chart. Always keep a 20% safety margin while designing wiring systems.

Frequently Asked Questions

If consumed in 1 hour, 1 kWh = 1000 Watts. kWh is energy; Watt is power.

No. kWh measures energy over time; Watts measures instantaneous power.

kWh is energy (consumption over time), Watt is power (instant load).

kwh into watts

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kWh to Watts Calculator – MB Electrical