How to convert watt-hours to british thermal units
To convert a measurement in watt-hours to british thermal units, multiply the value by 3.412142. The conversion factor comes from the relationship between both units and the joule.
For example, to convert 5 Wh to british thermal units: 5 × 3.412142 = 17.060708 BTU.
What is a watt-hour?
A watt-hour is the energy delivered by one watt of power over one hour, equal to 3,600 joules. The watt-hour emerged with the electrical industry as a practical measure of energy use over time. It underpins the kilowatt-hour that appears on electricity bills worldwide.
Common uses of watt-hours include: Battery capacity ratings; Small electronics energy use; Solar panel and storage sizing; Portable power station specifications.
What is a british thermal unit?
A British thermal unit (BTU) is the energy needed to raise the temperature of one pound of water by one degree Fahrenheit, about 1,055 joules. The BTU arose from imperial heating and steam engineering. It remains the dominant unit for heating, ventilation, and air-conditioning capacity in the United States, where furnaces and air conditioners are rated in BTU.
Common uses of british thermal units include: Air conditioner and furnace ratings; Heating and cooling load calculations; Natural gas and fuel energy content; HVAC system sizing in the US.
Watt-hours to british thermal units worked examples
Here are some common values converted:
1 Wh = 3.412142 BTU 5 Wh = 17.060708 BTU 10 Wh = 34.121416 BTU 50 Wh = 170.607082 BTU 100 Wh = 341.214163 BTU
Frequently asked questions
How many british thermal units are in one watt-hour?
One watt-hour (Wh) equals 3.412142 british thermal units (BTU). Multiply any value in watt-hours by 3.412142 to convert to british thermal units.
How do I convert watt-hours to british thermal units?
Multiply the value in watt-hours by 3.412142. For example, 5 Wh × 3.412142 = 17.060708 BTU.
How do I convert british thermal units to watt-hours?
Multiply the value in british thermal units by 0.293071070172, or divide by 3.412142. Use the swap button on the converter above to reverse the direction.
Is the watt-hour to british thermal unit conversion exact?
The thermochemical calorie is defined as exactly 4.184 J and the BTU as 1055.056 J. Conversions between SI energy units are exact.
What is the formula for watt-hours to british thermal units?
The formula is: BTU = Wh × 3.412142. This comes from the definition of both units relative to the joule.