kWh to Megajoules Converter

Convert energy between kilowatt-hours (kWh) and megajoules (MJ) with the precise 1 kWh = 3.6 MJ ratio.

Energy Converter

Choose the direction, enter the energy amount, and hit Calculate (or let the form update automatically).

Direction

Input value

Exact ratio: 1 kWh = 3.6 MJ

Converted value

0.0000 MJ

Input 0.0000 kWh

Direction kWh → MJ

Conversion factor 1 kWh = 3.6 MJ

How to use

Pick the direction of the conversion, enter the value you have, and press Calculate or wait for the inputs to auto-update. The results card mirrors your entry with the matching unit.

Methodology

The tool applies the exact SI conversion: 1 kilowatt-hour equals 3.6 megajoules. When swapping the direction, it divides by 3.6 to return to kWh.

Full original guide (expanded)

The legacy page featured breadcrumbs, search helpers, and an audit badge emphasizing the extracted formulas, sources, and Ugo Candido’s verification. This new layout keeps the same authoritative information while trimming redundant navigation.

Formulas

Energy conversion

\[\text{kWh} = \frac{\text{MJ}}{3.6}\quad\text{and}\quad \text{MJ} = \text{kWh} \times 3.6\]

kWh: kilowatt-hours, a measure of energy.
MJ: megajoules, another energy measure.

Citations

NIST — Weights and measures: https://www.nist.gov/pml/weights-and-measures

NIST — SI units: https://www.nist.gov/pml/owm/metric-si/si-units

Changelog

Version 0.1.0-draft — Initial audit spec draft generated from HTML extraction (review required).
Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
Confirm sources are authoritative and relevant to the calculator methodology.

Last code update: 2026-01-19

✓ Verified by Ugo Candido

Last Updated: 2026-01-19

Version 0.1.0-draft