Kilocalorie to Erg Converter

Energy Converter

27 units available

Decimals:

From

To

41,840,000,000

1 kcal = 41,840,000,000 erg

Formula:

erg = kcal × 4.184000e+10

With your value: 1 kcal = 41,840,000,000 erg

How big is that?

Everyday references on a logarithmic scale, all expressed in kilocalorie so you can sanity-check the result.

Heartbeat (1/4.2e+3 your value)0.000239 kcal

Your value1.00 kcal

AA battery charge (2.4× your value)2.39 kcal

Slice of bread (67× your value)66.9 kcal

Daily food intake (2.0e+3× your value)2.01e+3 kcal

Litre of petrol (8.2e+3× your value)8.17e+3 kcal

Other Kilocalorie to Erg conversions

2 kcal to erg 3 kcal to erg 4 kcal to erg 5 kcal to erg 6 kcal to erg 7 kcal to erg 8 kcal to erg

Kilocalorie to Erg Conversion Table

Kilocalorie (kcal)	Erg (erg)
0.5	20,920,000,000
1	41,840,000,000
2	83,680,000,000
5	209,200,000,000
10	418,400,000,000
15	627,600,000,000
20	836,800,000,000
25	1.046000e+12
50	2.092000e+12
100	4.184000e+12
250	1.046000e+13
500	2.092000e+13
1000	4.184000e+13

Erg to Kilocalorie Conversion Table

Erg (erg)	Kilocalorie (kcal)
0.5	1.195029e-11
1	2.390057e-11
2	4.780115e-11
5	1.195029e-10
10	2.390057e-10
15	3.585086e-10
20	4.780115e-10
25	5.975143e-10
50	1.195029e-9
100	2.390057e-9
250	5.975143e-9
500	1.195029e-8
1000	2.390057e-8

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Kilocalorie (kcal)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Erg (erg)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Kilocalorie to Erg

To convert from Kilocalorie (kcal) to Erg (erg), multiply the value by 41,840,000,000.

Formula: erg = kcal × 4.184000e+10

Reverse: kcal = erg × 2.390057e-11

Step-by-Step Example

Start with your value in Kilocalorie. For example: 5 kcal
Multiply by the conversion factor: 5 x 41,840,000,000
The result is: 209,200,000,000 erg

About Kilocalorie

The kilocalorie (food Calorie) equals 1,000 calories or 4,184 joules. It is the standard unit for food energy content.

Common uses: nutrition, diet, food labeling.

About Erg

The erg (erg) is a unit of energy and work. One erg equals 1.000000 × 10^-7 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

Frequently Asked Questions

How many Erg are in 1 Kilocalorie?

There are exactly 41,840,000,000 Erg in 1 Kilocalorie. This means the conversion factor from Kilocalorie to Erg is 41,840,000,000.

What is the formula to convert Kilocalorie to Erg?

The formula to convert Kilocalorie to Erg is: erg = kcal × 4.184000e+10. For example, to convert 10 Kilocalorie to Erg, you would multiply 10 by 41,840,000,000.

What is a Kilocalorie?