Convert kJ to kWh
1 kJ = 0.000277778 kWh · 1 kWh = 3600 kJ · Exact by definition
1 kJ = 0.000277778 kWh
The same value in other units
- joule
- 1000 J
- kilocalorie
- 0.239006 kcal
- British thermal unit
- 0.947817 BTU
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
Convert a whole list
Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Energy
kJ to kWh: conversion table
| kilojoule | kilowatt-hour |
|---|---|
| 1 kJ | 0.000277778 kWh |
| 2 kJ | 0.000555556 kWh |
| 3 kJ | 0.000833333 kWh |
| 5 kJ | 0.00138889 kWh |
| 10 kJ | 0.00277778 kWh |
| 20 kJ | 0.00555556 kWh |
| 25 kJ | 0.00694444 kWh |
| 50 kJ | 0.0138889 kWh |
| 100 kJ | 0.0277778 kWh |
| 250 kJ | 0.0694444 kWh |
| 500 kJ | 0.138889 kWh |
| 1000 kJ | 0.277778 kWh |
| kilowatt-hour | kilojoule |
|---|---|
| 1 kWh | 3600 kJ |
| 2 kWh | 7200 kJ |
| 3 kWh | 10800 kJ |
| 5 kWh | 18000 kJ |
| 10 kWh | 36000 kJ |
| 20 kWh | 72000 kJ |
| 25 kWh | 90000 kJ |
| 50 kWh | 180000 kJ |
| 100 kWh | 360000 kJ |
| 250 kWh | 900000 kJ |
| 500 kWh | 1800000 kJ |
| 1000 kWh | 3600000 kJ |
How the conversion works
kWh = kJ × 0.00027777778
Both units are defined exactly, so the precision of the kJ to kWh result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- BIPM — SI Brochure
The official definitions of the International System of Units (SI).
- NIST SP 811 — Conversion factors
Conversion-factor tables for SI and non-SI units.
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