Kilowatt-hour (thermal) to Kilojoule Converter
Energy · unit-converter
Convert Kilowatt-hour (thermal) to Kilojoule 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: Kilowatt-hour (thermal) (kwh_th)
To: Kilojoule (kj)
About Kilowatt-hour (thermal)
Kilowatt-hour (thermal) is shown as a thermal-energy label and uses the same joule definition as kWh (3.6 MJ).
About Kilojoule
One kilojoule is 1,000 J. Scientific and engineering contexts often use kJ alongside joules.
How to convert kilowatt-hour (thermal) to kilojoules
1 kilowatt-hour (thermal) is equal to 3600 kilojoule when both are expressed in joule-equivalents:
1 kwh_th = (3,600,000 J ÷ 1,000 J) kj = 3600 kj
Each kilowatt-hour (thermal) is defined as 3,600,000 J and each kilojoule as 1,000 J in this tool, so one kwh_th equals 3,600,000 ÷ 1,000 kj = 3600 kj.
Let d(kwh_th) be the numeric amount in Kilowatt-hour (thermal) (kwh_th), and d(kj) the amount in Kilojoule (kj). Then:
d(kj) = d(kwh_th) × (3,600,000 / 1,000)
Equivalently, divide by how many kwh_th fit into one kj (joules per kj divided by joules per kwh_th):
d(kj) = d(kwh_th) ÷ 0.00027777777778
Or: kilojoule = kilowatt-hour (thermal) ÷ 0.00027777777778
Examples
Example #1: Convert 1 kwh_th to kilojoule
1 kwh_th = 1 kwh_th × (3,600,000/1,000) kj = 3600 kj
1 kwh_th = 1 kwh_th ÷ 0.00027777777778 = 3600 kj
Example #2: Convert 10 kwh_th to kilojoule
10 kwh_th = 10 kwh_th × (3,600,000/1,000) kj = 36000 kj
10 kwh_th = 10 kwh_th ÷ 0.00027777777778 = 36000 kj
Summary
To convert Kilowatt-hour (thermal) to Kilojoule, multiply the value in kwh_th by the ratio of joules per kwh_th divided by joules per kj. Equivalently: value_kj = value_kwh_th × (3600000 / 1000). Numerically, 1 kwh_th equals 3600 kj.
Relationship context
You are converting between electrical energy (watt-hours) (Kilowatt-hour (thermal)) and SI energy (joules) (Kilojoules). All values are mapped through joules first. The numeric factor is 3.600000e+3.
Conversion tables
| Kilowatt-hour (thermal) (kwh_th) | Kilojoule (kj) |
|---|---|
| 0.1 | 360 |
| 1 | 3,600 |
| 2 | 7,200 |
| 3 | 10,800 |
| 4 | 14,400 |
| 5 | 18,000 |
| 6 | 21,600 |
| 7 | 25,200 |
| 8 | 28,800 |
| 9 | 32,400 |
| Kilowatt-hour (thermal) (kwh_th) | Kilojoule (kj) |
|---|---|
| 10 | 36,000 |
| 20 | 72,000 |
| 30 | 108,000 |
| 40 | 144,000 |
| 50 | 180,000 |
| 60 | 216,000 |
| 70 | 252,000 |
| 80 | 288,000 |
| 90 | 324,000 |
| 100 | 360,000 |