5 Watt-hours to Joules
5 Wh = 18000 J
Calculation: J = 5 Wh × 3600 = 18000 J
Watt-hour to Joule Converter
How much energy is 5 Wh?
5 Wh (18 kJ) is comparable to the energy stored in a D-cell flashlight battery.
What does 5 Wh look like?
How to Convert Watt-hour to Joule
1 watt-hour = 3600 Joules exact
Joule = Watt-hour × 3600
Example: 5 Wh × 3600 = 18000 J
Reverse Conversion
To convert Joules back to watt-hours:
- Remember, 1 joule equals 0.000277778 watt-hours.
- To convert 18000 J to Wh, multiply
18000 x 0.000277778, resulting in5 Wh.
exact This conversion factor is exact by international definition.
5 Wh is also equal to:
- 18 kilojoule
- 0.005 kilowatt hour
- 4.3021 calorie (nutritional)
- 17.061 Btu
About these units
Watt hour: Energy equal to one watt of power sustained for one hour.
Joule: SI unit of energy: 1 J = 1 N·m = 1 kg·m²·s⁻².
Frequently Asked Questions
How much is 5 watt-hours in Joules?
5 watt-hours equals 18000 Joules. This is calculated by multiplying 5 by the conversion factor 3600.
What does 5 watt-hours look like in Joules?
5 watt-hours (18000 Joules) is a small battery charge — a smartphone uses about 5-15 Wh.
How do you calculate 5 watt-hours to Joules?
Multiply 5 by the conversion factor 3600. The calculation is 5 × 3600 = 18000 Joules. This factor is defined by international measurement standards.
Share This Calculation
For general conversions between watt-hours and Joules, see the watt-hours to Joules converter.
Also convert Watt-hours to:
