Kilojoule to Kilowatt Hour Converter
Energy · unit-converter
Convert Kilojoule to Kilowatt Hour with fixed input and output units, a step-by-step formula line, and reference tables. Factors are joule-based; food energy uses thermochemical calories. The full Energy Converter also includes MMBtu, toe, thermal kWh, and MeV/GeV.
Calculator
From: Kilojoule (kj)
To: Kilowatt Hour (kwh)
About Kilojoule
One kilojoule is 1,000 J. Scientific and engineering contexts often use kJ alongside joules.
About Kilowatt Hour
One kilowatt-hour is the energy from 1 kW of power for one hour: 1 kWh = 3,600,000 J. Utility bills and battery specs often use kWh.
How to convert kilojoules to kilowatt hours
1 kilojoule is equal to 0.00027777777778 kilowatt hour when both are expressed in joule-equivalents:
1 kj = (1,000 J ÷ 3,600,000 J) kwh = 0.00027777777778 kwh
Each kilojoule is defined as 1,000 J and each kilowatt hour as 3,600,000 J in this tool, so one kj equals 1,000 ÷ 3,600,000 kwh = 0.00027777777778 kwh.
Let d(kj) be the numeric amount in Kilojoule (kj), and d(kwh) the amount in Kilowatt Hour (kwh). Then:
d(kwh) = d(kj) × (1,000 / 3,600,000)
Equivalently, divide by how many kj fit into one kwh (joules per kwh divided by joules per kj):
d(kwh) = d(kj) ÷ 3600
Or: kilowatt hour = kilojoule ÷ 3600
Examples
Example #1: Convert 1 kj to kilowatt hour
1 kj = 1 kj × (1,000/3,600,000) kwh = 0.0002777778 kwh
1 kj = 1 kj ÷ 3600 = 0.0002777778 kwh
Example #2: Convert 10 kj to kilowatt hour
10 kj = 10 kj × (1,000/3,600,000) kwh = 0.0027777778 kwh
10 kj = 10 kj ÷ 3600 = 0.0027777778 kwh
Summary
To convert Kilojoule to Kilowatt Hour, multiply the value in kj by the ratio of joules per kj divided by joules per kwh. Equivalently: value_kwh = value_kj × (1000 / 3600000). Numerically, 1 kj equals 0.0002777777777777778 kwh.
Relationship context
You are converting between SI energy (joules) (Kilojoules) and electrical energy (watt-hours) (Kilowatt Hours). All values are mapped through joules first. The numeric factor is 2.777778e-4.
Conversion tables
| Kilojoule (kj) | Kilowatt Hour (kwh) |
|---|---|
| 0.1 | 0.0000277778 |
| 1 | 0.0002777778 |
| 2 | 0.0005555556 |
| 3 | 0.0008333333 |
| 4 | 0.0011111111 |
| 5 | 0.0013888889 |
| 6 | 0.0016666667 |
| 7 | 0.0019444444 |
| 8 | 0.0022222222 |
| 9 | 0.0025 |
| Kilojoule (kj) | Kilowatt Hour (kwh) |
|---|---|
| 10 | 0.0027777778 |
| 20 | 0.0055555556 |
| 30 | 0.0083333333 |
| 40 | 0.0111111111 |
| 50 | 0.0138888889 |
| 60 | 0.0166666667 |
| 70 | 0.0194444444 |
| 80 | 0.0222222222 |
| 90 | 0.025 |
| 100 | 0.0277777778 |