British Thermal Units to Electronvolts Converter

Enter the energy in british thermal units below to get the value converted to electronvolts.


Result in Electronvolts:

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1 BTU = 6.5851E+21 eV
Hint: use a scientific notation calculator to convert E notation to decimal

Do you want to convert electronvolts to british thermal units?

How to Convert British Thermal Units to Electronvolts

To convert a measurement in british thermal units to a measurement in electronvolts, multiply the energy by the following conversion ratio: 6.5851E+21 electronvolts/british thermal unit.

Since one british thermal unit is equal to 6.5851E+21 electronvolts, you can use this simple formula to convert:

electronvolts = british thermal units × 6.5851E+21

The energy in electronvolts is equal to the energy in british thermal units multiplied by 6.5851E+21.

For example, here's how to convert 5 british thermal units to electronvolts using the formula above.
electronvolts = (5 BTU × 6.5851E+21) = 3.2926E+22 eV

How Many Electronvolts Are in a British Thermal Unit?

There are 6.5851E+21 electronvolts in a british thermal unit, which is why we use this value in the formula above.

1 BTU = 6.5851E+21 eV

British thermal units and electronvolts are both units used to measure energy. Keep reading to learn more about each unit of measure.

What Is a British Thermal Unit?

British thermal units are a measure of heat energy. Specifically, one british thermal unit is equal to the amount of heat energy required to increase the temperature of one pound of water one degree Fahrenheit. They are often used as a way to rate the energy heat producing appliances such furnaces, and to price heating fuels such as natural gas.

The british thermal unit is a US customary unit of energy. British thermal units can be abbreviated as BTU; for example, 1 british thermal unit can be written as 1 BTU.

Learn more about british thermal units.

What Is an Electronvolt?

An electronvolt is the amount of energy required to accelerate an electron through a difference in electric potential of one volt in vacuum. One electronvolt is equal to the charge of 1.602176634 × 10−19 C, and is equal to the energy of 1.602176634 × 10−19 Joules.[1]

Electronvolts can be abbreviated as eV; for example, 1 electronvolt can be written as 1 eV.

Energy in electronvolts can be expressed using the following formula: E = qV

The energy E in electronvolts is equal to the electric charge q in elementary charge times the potential difference V in volts.

Learn more about electronvolts.

British Thermal Unit to Electronvolt Conversion Table

Table showing various british thermal unit measurements converted to electronvolts.
British Thermal Units Electronvolts
0.000000000000000000001 BTU 6.5851 eV
0.000000000000000000002 BTU 13.17 eV
0.000000000000000000003 BTU 19.76 eV
0.000000000000000000004 BTU 26.34 eV
0.000000000000000000005 BTU 32.93 eV
0.000000000000000000006 BTU 39.51 eV
0.000000000000000000007 BTU 46.1 eV
0.000000000000000000008 BTU 52.68 eV
0.000000000000000000009 BTU 59.27 eV
0.0000000000000000000001 BTU 0.658514 eV
0.000000000000000000001 BTU 6.5851 eV
0.00000000000000000001 BTU 65.85 eV
0.0000000000000000001 BTU 658.51 eV
0.000000000000000001 BTU 6,585 eV
0.00000000000000001 BTU 65,851 eV
0.0000000000000001 BTU 658,514 eV
0.000000000000001 BTU 6,585,141 eV
0.00000000000001 BTU 65,851,410 eV
0.0000000000001 BTU 658,514,096 eV
0.000000000001 BTU 6,585,140,962 eV
0.00000000001 BTU 65,851,409,618 eV
0.0000000001 BTU 658,514,096,179 eV
0.000000001 BTU 6,585,140,961,789 eV
0.00000001 BTU 65,851,409,617,891 eV
0.0000001 BTU 658,510,000,000,000 eV
0.000001 BTU 6,585,100,000,000,000 eV
0.00001 BTU 65,851,000,000,000,000 eV
0.0001 BTU 658,510,000,000,000,000 eV
0.001 BTU 6,585,100,000,000,000,000 eV
0.01 BTU 65,851,000,000,000,000,000 eV
0.1 BTU 658,510,000,000,000,065,536 eV
1 BTU 6,585,100,000,000,000,131,072 eV


  1. Tatum, J., Electricity and Magnetism - 2.3: Electron-volts,

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