Kilojoules to Watt-hours

Convert Kilojoules to Watt-hours. 1 kJ equals 0.277778 Wh. Type a value on either side; the formula and tables below show how it works.

kJ
Wh
1 Kilojoules equals
0.277778Wh

Formula: Wh = kJ × 0.277778. Example: 5 kJ = 1.3889 Wh.

1 Kilojoules in every unit

Joules1,000 J
Calories239.0057 cal
Kilocalories0.239006 kcal
Watt-hours0.277778 Wh
Kilowatt-hours0.000277778 kWh
BTU0.947817 BTU
Therms0.000009478 thm
Electronvolts6,241,509,074,460,762,701,824 eV

Kilojoules to Watt-hours table

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
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

How to convert kilojoules to watt-hours

Wh = kJ × 0.277778

Multiply the value in kilojoules by 0.277778. To go the other way, divide by the same number, or multiply by 3.6. For example, 5 kJ × 0.277778 = 1.3889 Wh.

About the units

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

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

Other energy conversions

Joules to Watt-hours · 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 Watt-hours · Kilocalories to Watt-hours · 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 Watt-hours · BTU to Watt-hours · Therms to Watt-hours · Electronvolts to Watt-hours

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