Joule to kWh Converter - Convert Energy Units Instantly
Result:
3600000 J = 1e+0 kWh
How Our Joule to kWh Converter Works
Enter Joules
Input your energy value in Joules (J)
Choose Units
Select from Joule to kWh or other energy units
Apply Formula
Use joule kwh formula for conversion
Energy Conversion Formulas
Joule to kWh Formula
kWh = J ÷ 3,600,000
Example: 7,200,000 J = 7,200,000 ÷ 3,600,000 = 2 kWh
kWh to Joule Formula
J = kWh × 3,600,000
Example: 5 kWh = 5 × 3,600,000 = 18,000,000 J
Joule to Wh Formula
Wh = J ÷ 3,600
Example: 18,000 J = 18,000 ÷ 3,600 = 5 Wh
Energy Relationship
1 kWh = 1,000 Wh = 3.6 MJ
Standard energy unit relationships
Energy Conversion Table
| Joules (J) | kWh | Wh | Calories | BTU |
|---|---|---|---|---|
| 1,000 | 0.000278 | 0.278 | 239.0 | 0.948 |
| 3,600 | 0.001000 | 1.000 | 860.4 | 3.412 |
| 36,000 | 0.010000 | 10.000 | 8604.2 | 34.121 |
| 360,000 | 0.100000 | 100.000 | 86042.1 | 341.213 |
| 1,000,000 | 0.277778 | 277.778 | 239005.7 | 947.813 |
| 3,600,000 | 1.000000 | 1000.000 | 860420.7 | 3412.128 |
| 7,200,000 | 2.000000 | 2000.000 | 1720841.3 | 6824.256 |
| 18,000,000 | 5.000000 | 5000.000 | 4302103.3 | 17060.641 |
| 36,000,000 | 10.000000 | 10000.000 | 8604206.5 | 34121.282 |
| 72,000,000 | 20.000000 | 20000.000 | 17208413.0 | 68242.564 |
| 180,000,000 | 50.000000 | 50000.000 | 43021032.5 | 170606.411 |
| 360,000,000 | 100.000000 | 100000.000 | 86042065.0 | 341212.822 |
| 720,000,000 | 200.000000 | 200000.000 | 172084130.0 | 682425.644 |
| 1,800,000,000 | 500.000000 | 500000.000 | 430210325.0 | 1706064.110 |
| 3,600,000,000 | 1000.000000 | 1000000.000 | 860420650.1 | 3412128.220 |
Energy Units Progression Chart
1 kJ
1 MJ
1 GJ
1 kWh
10 kWh
100 kWh
Practice Problems
Problem 1:
Convert 18,000,000 J to kWh
Solution: 18,000,000 ÷ 3,600,000 = 5 kWh
Problem 2:
Convert 2.5 kWh to Joules
Solution: 2.5 × 3,600,000 = 9,000,000 J
Problem 3:
Convert 7,200 J to Wh
Solution: 7,200 ÷ 3,600 = 2 Wh
Problem 4:
Convert 0.1 kWh to Joules
Solution: 0.1 × 3,600,000 = 360,000 J
Problem 5:
Convert 1,800,000 J to kWh
Solution: 1,800,000 ÷ 3,600,000 = 0.5 kWh
Common Joule to kWh Examples
Household Energy Examples
• 3,600,000 J = 1 kWh (typical light bulb for 1 hour)
• 18,000,000 J = 5 kWh (washing machine cycle)
• 36,000,000 J = 10 kWh (air conditioner for 4 hours)
• 72,000,000 J = 20 kWh (electric car charging)
Scientific Energy Examples
• 1,000,000 J = 0.278 kWh (1 Megajoule)
• 7,200,000 J = 2 kWh (small battery pack)
• 180,000,000 J = 50 kWh (electric vehicle battery)
• 360,000,000 J = 100 kWh (home energy storage)
Daily Uses of Joule to kWh Converter
Electricity Bills
Convert energy consumption from Joules to kWh for billing calculations
Battery Calculations
Calculate battery capacity in kWh from Joule measurements
Solar Energy
Convert solar panel output from Joules to kilowatt hours
Electric Vehicles
Calculate EV charging energy requirements in kWh
Home Appliances
Convert appliance energy ratings from J to kWh
Energy Audits
Professional energy assessments using joule to kwh conversion
Frequently Asked Questions
What is the joule to kwh formula?
The joule to kilowatt hour formula is: kWh = J ÷ 3,600,000. This means you divide the number of Joules by 3.6 million to get kilowatt hours.
How many Joules are in 1 kWh?
One kilowatt hour equals 3,600,000 Joules. This is because 1 kWh = 1000 watts × 3600 seconds = 3.6 million Joules.
Why use a joule to kwh converter?
Our joule to kwh converter helps you quickly convert between these energy units for electricity bills, battery calculations, and energy efficiency measurements.
Is this energy conversion tool accurate?
Yes, our energy unit converter uses the exact conversion factor (1 kWh = 3,600,000 J) for precise joule to kilowatt hour calculations.
Can I convert other energy units?
Yes, our energy conversion tool supports Joules, kWh, Wh, calories, kcal, and BTU conversions for comprehensive energy calculations.
How do I calculate electricity costs?
Convert your energy consumption from Joules to kWh using our converter, then multiply by your electricity rate per kWh to get the cost.