Convert Kilowatts (kW) to Kilowatt-hours (kWh)
Understanding the conversion from kilowatts (kW) to kilowatt-hours (kWh) can simplify energy usage assessments. The conversion factor of 1 kW equals 2.7778e-4 kWh is essential for calculating energy consumption over time.
0.000278
Formula: kWh = kW × 2.7778e-4
Conversion Formula
kWh = kW × 2.7778e-4
Reverse: kW = kWh × 3600
Quick mental math: To estimate quickly, divide kW by 3600 to get kWh.
Conversion Examples
1 kW × 0.000277778 =
0 kWh
1 Kilowatts = 0 Kilowatt-hours
5 kW × 0.000277778 =
0.001 kWh
5 Kilowatts = 0.001 Kilowatt-hours
10 kW × 0.000277778 =
0.003 kWh
10 Kilowatts = 0.003 Kilowatt-hours
25 kW × 0.000277778 =
0.007 kWh
25 Kilowatts = 0.007 Kilowatt-hours
50 kW × 0.000277778 =
0.014 kWh
50 Kilowatts = 0.014 Kilowatt-hours
100 kW × 0.000277778 =
0.028 kWh
100 Kilowatts = 0.028 Kilowatt-hours
Kilowatt to Kilowatt-hour Table
kW =—kWh
| Kilowatt (kW) | Kilowatt-hour (kWh) | Fraction |
|---|---|---|
| 100 | 0.027778 | 1/32 |
| 200 | 0.055556 | 1/16 |
| 300 | 0.083333 | 5/64 |
| 400 | 0.111111 | 7/64 |
| 500 | 0.138889 | 9/64 |
| 600 | 0.166667 | 11/64 |
| 700 | 0.194444 | 3/16 |
| 800 | 0.222222 | 7/32 |
| 900 | 0.25 | 1/4 |
| 1,000 | 0.277778 | 9/32 |
| 1,100 | 0.305556 | 5/16 |
| 1,200 | 0.333333 | 21/64 |
| 1,300 | 0.361111 | 23/64 |
| 1,400 | 0.388889 | 25/64 |
| 1,500 | 0.416667 | 27/64 |
| 1,600 | 0.444444 | 7/16 |
| 1,700 | 0.472222 | 15/32 |
| 1,800 | 0.5 | 1/2 |
| 1,900 | 0.527778 | 17/32 |
| 2,000 | 0.555556 | 9/16 |
Unit Definitions
What is a Kilowatt (kW)?
Metric (SI)Worldwide
A kilowatt (kW) is a unit of power equal to 1,000 watts. It measures the rate of energy transfer.
History
The kilowatt was introduced in the late 19th century during the expansion of electrical power generation. The term was adopted as electrical systems grew in complexity.
Current Use
Today, kilowatts are commonly used to rate the output of engines and the power consumption of electrical devices.
What is a Kilowatt-hour (kWh)?
Metric (SI)Worldwide
A kilowatt-hour (kWh) is a unit of energy equivalent to one kilowatt of power used for one hour.
History
The kilowatt-hour was established as a standard measurement as electrical grids became more widespread, allowing consumers to understand their energy usage.
Current Use
Kilowatt-hours are now the standard billing unit for energy providers, helping consumers gauge their electricity consumption.
Frequently Asked Questions
How do I calculate energy consumption for my home appliances?
To calculate energy consumption, first determine the power rating of your appliance in kilowatts. For example, if you have a 2000 kW heater running for 5 hours, the calculation would be 2000 kW * 5 hours = 10000 kWh. Using the conversion factor, this is equal to 2.7778 kWh for every kW used, resulting in 27.778 kWh of energy consumed.
What does 1 kWh mean in practical terms?
One kilowatt-hour represents the energy consumed by a device running at one kilowatt for one hour. For instance, if you use a 1000 kW electric kettle for 1 hour, it would consume 1 kWh of energy. If you run it for 3 hours, that’s 3 kWh, translating into 10800 kJ of energy usage.
How can I estimate the energy cost for my workout equipment?
If your treadmill uses 2 kW and you exercise for 1 hour, you would consume 2 kWh of energy, which is about 0.555 kWh when using the conversion factor. If your energy cost is $0.12 per kWh, your workout would cost approximately $0.24 for that hour of usage.
How is energy consumption measured in electric vehicles?
Electric vehicles often use kilowatt-hours to describe their energy usage. If your EV consumes 15 kWh per 100 km, driving 200 km would require 30 kWh. This is about 108000 kJ of energy, which can be converted from 10 kW if the vehicle runs at that power level for 3 hours.
How can I calculate the energy needed for a construction site?
For a construction site using several power tools, if each tool consumes 5 kW and is used for 8 hours, the total energy consumption would be 40 kWh. Converting that, it’s approximately 111 kJ. Knowing the rate of energy consumed helps in budgeting and efficient energy management.
Popular Energy Conversions
Kilowatt to HorsepowerkW → HPJoule to KilojouleJ → kJJoule to CalorieJ → calJoule to KilocalorieJ → kcalJoule to Watt-hourJ → WhJoule to Kilowatt-hourJ → kWhJoule to BTUJ → BTUJoule to KilowattJ → kWJoule to HorsepowerJ → HPJoule to Newton-MeterJ → N·mJoule to Foot-PoundJ → ft·lbJoule to Inch-PoundJ → in·lbKilojoule to JoulekJ → JKilojoule to CaloriekJ → calKilojoule to KilocaloriekJ → kcalKilojoule to Watt-hourkJ → WhKilojoule to Kilowatt-hourkJ → kWhKilojoule to BTUkJ → BTUKilojoule to KilowattkJ → kWKilojoule to HorsepowerkJ → HPKilojoule to Newton-MeterkJ → N·mKilojoule to Foot-PoundkJ → ft·lbKilojoule to Inch-PoundkJ → in·lbCalorie to Joulecal → JCalorie to Kilojoulecal → kJCalorie to Kilocaloriecal → kcalCalorie to Watt-hourcal → WhCalorie to Kilowatt-hourcal → kWhCalorie to BTUcal → BTUCalorie to Kilowattcal → kWCalorie to Horsepowercal → HPCalorie to Newton-Metercal → N·mCalorie to Foot-Poundcal → ft·lbCalorie to Inch-Poundcal → in·lbKilocalorie to Joulekcal → JKilocalorie to Kilojoulekcal → kJKilocalorie to Caloriekcal → calKilocalorie to Watt-hourkcal → WhKilocalorie to Kilowatt-hourkcal → kWhKilocalorie to BTUkcal → BTUKilocalorie to Kilowattkcal → kWKilocalorie to Horsepowerkcal → HPKilocalorie to Newton-Meterkcal → N·mKilocalorie to Foot-Poundkcal → ft·lbKilocalorie to Inch-Poundkcal → in·lbWatt-hour to JouleWh → JWatt-hour to KilojouleWh → kJWatt-hour to CalorieWh → calWatt-hour to KilocalorieWh → kcalWatt-hour to Kilowatt-hourWh → kWhWatt-hour to BTUWh → BTUWatt-hour to KilowattWh → kWWatt-hour to HorsepowerWh → HPWatt-hour to Newton-MeterWh → N·mWatt-hour to Foot-PoundWh → ft·lbWatt-hour to Inch-PoundWh → in·lbKilowatt-hour to JoulekWh → JKilowatt-hour to KilojoulekWh → kJKilowatt-hour to CaloriekWh → calKilowatt-hour to KilocaloriekWh → kcalKilowatt-hour to Watt-hourkWh → WhKilowatt-hour to BTUkWh → BTUKilowatt-hour to KilowattkWh → kWKilowatt-hour to HorsepowerkWh → HPKilowatt-hour to Newton-MeterkWh → N·mKilowatt-hour to Foot-PoundkWh → ft·lbKilowatt-hour to Inch-PoundkWh → in·lbBTU to JouleBTU → JBTU to KilojouleBTU → kJBTU to CalorieBTU → calBTU to KilocalorieBTU → kcalBTU to Watt-hourBTU → WhBTU to Kilowatt-hourBTU → kWhBTU to KilowattBTU → kWBTU to HorsepowerBTU → HPBTU to Newton-MeterBTU → N·mBTU to Foot-PoundBTU → ft·lbBTU to Inch-PoundBTU → in·lbKilowatt to JoulekW → JKilowatt to KilojoulekW → kJKilowatt to CaloriekW → calKilowatt to KilocaloriekW → kcalKilowatt to Watt-hourkW → WhKilowatt to BTUkW → BTUKilowatt to Newton-MeterkW → N·mKilowatt to Foot-PoundkW → ft·lbKilowatt to Inch-PoundkW → in·lbHorsepower to JouleHP → JHorsepower to KilojouleHP → kJHorsepower to CalorieHP → calHorsepower to KilocalorieHP → kcalHorsepower to Watt-hourHP → WhHorsepower to Kilowatt-hourHP → kWhHorsepower to BTUHP → BTUHorsepower to KilowattHP → kWHorsepower to Newton-MeterHP → N·mHorsepower to Foot-PoundHP → ft·lbHorsepower to Inch-PoundHP → in·lbNewton-Meter to JouleN·m → JNewton-Meter to KilojouleN·m → kJNewton-Meter to CalorieN·m → calNewton-Meter to KilocalorieN·m → kcalNewton-Meter to Watt-hourN·m → WhNewton-Meter to Kilowatt-hourN·m → kWhNewton-Meter to BTUN·m → BTUNewton-Meter to KilowattN·m → kWNewton-Meter to HorsepowerN·m → HPNewton-Meter to Foot-PoundN·m → ft·lbNewton-Meter to Inch-PoundN·m → in·lbFoot-Pound to Jouleft·lb → JFoot-Pound to Kilojouleft·lb → kJFoot-Pound to Calorieft·lb → calFoot-Pound to Kilocalorieft·lb → kcalFoot-Pound to Watt-hourft·lb → WhFoot-Pound to Kilowatt-hourft·lb → kWhFoot-Pound to BTUft·lb → BTUFoot-Pound to Kilowattft·lb → kWFoot-Pound to Horsepowerft·lb → HPFoot-Pound to Newton-Meterft·lb → N·mFoot-Pound to Inch-Poundft·lb → in·lbInch-Pound to Joulein·lb → JInch-Pound to Kilojoulein·lb → kJInch-Pound to Caloriein·lb → calInch-Pound to Kilocaloriein·lb → kcalInch-Pound to Watt-hourin·lb → WhInch-Pound to Kilowatt-hourin·lb → kWhInch-Pound to BTUin·lb → BTUInch-Pound to Kilowattin·lb → kWInch-Pound to Horsepowerin·lb → HPInch-Pound to Newton-Meterin·lb → N·mInch-Pound to Foot-Poundin·lb → ft·lb
Convert Kilowatt to Other Units
Kilowatt to Horsepower→ HPKilowatt to Joule→ JKilowatt to Kilojoule→ kJKilowatt to Calorie→ calKilowatt to Kilocalorie→ kcalKilowatt to Watt-hour→ WhKilowatt to Kilowatt-hour→ kWhKilowatt to BTU→ BTUKilowatt to Joule→ JKilowatt to Kilojoule→ kJKilowatt to Calorie→ calKilowatt to Kilocalorie→ kcalKilowatt to Watt-hour→ WhKilowatt to BTU→ BTUKilowatt to Newton-Meter→ N·mKilowatt to Foot-Pound→ ft·lbKilowatt to Inch-Pound→ in·lbKilowatt to Horsepower→ HPKilowatt to Newton-Meter→ N·mKilowatt to Foot-Pound→ ft·lbKilowatt to Inch-Pound→ in·lb