About the Energy Converter
What is the Energy Converter?
Food labels, electricity bills and physics use different energy units. This energy converter links them all through the joule.
It returns the converted value and the equivalent in every other unit.
How to use the Energy Converter
- Value (sample: 1)
- From (sample: Kilowatt-hour (unit) (kWh))
- To (sample: Megajoule (MJ))
- Press Convert (results also refresh as you type). The result card shows the Converted Value, along with Result, Conversion factor and Reverse factor.
Formula used
Result = Value × (J per from-unit) ÷ (J per to-unit)
- 1 kWh = 3.6 MJ
- 1 kcal = 4,184 J
- 1 BTU = 1,055.06 J
- 1 eV = 1.602 × 10⁻¹⁹ J
Worked example
These are the sample values already filled in the calculator above, and the result it returns for them:
| Input | Sample value |
|---|---|
| Value | 1 |
| From | Kilowatt-hour (unit) (kWh) |
| To | Megajoule (MJ) |
| Result | Value |
|---|---|
| Converted Value | 3.6 MJ |
| Result | 1 kWh = 3.6 MJ |
| Conversion factor | 1 kWh = 3.6 MJ |
| Reverse factor | 1 MJ = 0.27777778 kWh |
Tips for using the Energy Converter
- One electricity "unit" on your bill is 1 kWh.
- Food Calories (capital C) are kilocalories.