Watt-hours to Kilojoules

Convert Watt-hours to Kilojoules. 1 Wh equals 3.6 kJ. Type a value on either side; the formula and tables below show how it works.

Wh
kJ
1 Watt-hours equals
3.6kJ

Formula: kJ = Wh × 3.6. Example: 5 Wh = 18 kJ.

1 Watt-hours in every unit

Joules3,600 J
Kilojoules3.6 kJ
Calories860.4207 cal
Kilocalories0.860421 kcal
Kilowatt-hours0.001 kWh
BTU3.4121 BTU
Therms0.000034121 thm
Electronvolts22,469,432,668,058,747,404,288 eV

Watt-hours to Kilojoules table

Watt-hoursKilojoules
0.1 Wh0.36 kJ
0.25 Wh0.9 kJ
0.5 Wh1.8 kJ
1 Wh3.6 kJ
2 Wh7.2 kJ
3 Wh10.8 kJ
4 Wh14.4 kJ
5 Wh18 kJ
10 Wh36 kJ
15 Wh54 kJ
20 Wh72 kJ
25 Wh90 kJ
50 Wh180 kJ
75 Wh270 kJ
100 Wh360 kJ
250 Wh900 kJ
500 Wh1,800 kJ
1,000 Wh3,600 kJ
KilojoulesWatt-hours
0.1 kJ0.027778 Wh
0.25 kJ0.069444 Wh
0.5 kJ0.138889 Wh
1 kJ0.277778 Wh
2 kJ0.555556 Wh
3 kJ0.833333 Wh
4 kJ1.1111 Wh
5 kJ1.3889 Wh
10 kJ2.7778 Wh
15 kJ4.1667 Wh
20 kJ5.5556 Wh
25 kJ6.9444 Wh
50 kJ13.8889 Wh
75 kJ20.8333 Wh
100 kJ27.7778 Wh
250 kJ69.4444 Wh
500 kJ138.8889 Wh
1,000 kJ277.7778 Wh

How to convert watt-hours to kilojoules

kJ = Wh × 3.6

Multiply the value in watt-hours by 3.6. To go the other way, divide by the same number, or multiply by 0.277778. For example, 5 Wh × 3.6 = 18 kJ.

About the units

Watt-hours (Wh). 3,600 joules. Battery capacity of phones and laptops.

Kilojoules (kJ). 1,000 joules. Food energy on labels in Australia and the EU.

Other energy conversions

Joules to Kilojoules · Kilojoules to Joules · Kilojoules to Calories · Kilojoules to Kilocalories · Kilojoules to Watt-hours · Kilojoules to Kilowatt-hours · Kilojoules to BTU · Kilojoules to Therms · Kilojoules to Electronvolts · Calories to Kilojoules · Kilocalories to Kilojoules · Watt-hours to Joules · Watt-hours to Kilojoules · Watt-hours to Calories · Watt-hours to Kilocalories · Watt-hours to Kilowatt-hours · Watt-hours to BTU · Watt-hours to Therms · Watt-hours to Electronvolts · Kilowatt-hours to Kilojoules · BTU to Kilojoules · Therms to Kilojoules · Electronvolts to Kilojoules

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