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Electronvolts to Calories Converter

Convert electronvolts to calories and back instantly with formula and common values.

eV

Calories

0

cal

23 eV = 0 cal

cal = eV × 3.8293e-20

Electronvolts to Calories: 1 eV equals 3.82929e-20 cal. To convert electronvolts to calories, multiply by 3.82929e-20 (cal = eV × 3.8293e-20). For example, 10 eV = 3.82929e-19 cal.

How to Convert Electronvolts to Calories

To convert from electronvolts to calories, multiply the value by 3.82929e-20. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Electronvolts to Calories: cal = eV × 3.8293e-20
  • Calories to Electronvolts: eV = cal ÷ 3.8293e-20

Electronvolts to Calories Conversion Chart

Electronvolts (eV)Calories (cal)
0.13.82929e-21
0.259.57324e-21
0.51.91465e-20
13.82929e-20
27.65859e-20
31.14879e-19
51.91465e-19
103.82929e-19
207.65859e-19
259.57324e-19
501.91465e-18
1003.82929e-18
2509.57324e-18
10003.82929e-17

Understanding the Units

What is an Electronvolt?

An electronvolt equals approximately 1.602 × 10⁻¹⁹ joules — the kinetic energy gained by a single electron accelerated through a one-volt potential difference.

Common contexts: particle physics, atomic spectroscopy, semiconductor band gaps.

What is a Calorie?

The thermochemical calorie equals exactly 4.184 joules; the historical "small" calorie raised one gram of water by one degree Celsius.

Common contexts: chemistry, historical thermodynamics.

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FAQ

How do I convert electronvolts to calories?

Multiply by 3.8293e-20. For example, 23 eV × 3.8293e-20 = 0 cal.

What is the formula for electronvolts to calories?

The formula is: cal = eV × 3.8293e-20.

How many calories are in one electronvolt?

One electronvolt equals 0 calories.

How many calories are in 1 electronvolt?

1 eV equals 3.82929e-20 cal.

How do you convert electronvolts to calories?

Multiply the electronvolt value by 3.82929e-20. Formula: cal = eV × 3.8293e-20.

How many calories are in 5 electronvolts?

5 eV = 1.91465e-19 cal.

How do you convert calories back to electronvolts?

Use the inverse formula: eV = cal ÷ 3.8293e-20. For example, 1 cal = 2.61145e+19 eV.

What is the difference between Electronvolt and Calory?

An electronvolt equals approximately 1.602 × 10⁻¹⁹ joules — the kinetic energy gained by a single electron accelerated through a one-volt potential difference. The thermochemical calorie equals exactly 4.184 joules; the historical "small" calorie raised one gram of water by one degree Celsius.