Calorie (th) to Erg Converter

Energy Converter

27 units available

Decimals:

From

To

41,840,000

1 cal = 41,840,000 erg

Formula:

erg = cal × 41,840,000

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

How big is that?

Everyday references on a logarithmic scale, all expressed in calorie (th) so you can sanity-check the result.

Heartbeat (1/4.2 your value)0.239 cal

Your value1.00 cal

AA battery charge (2.4e+3× your value)2.39e+3 cal

Slice of bread (6.7e+4× your value)6.69e+4 cal

Daily food intake (2.0e+6× your value)2.01e+6 cal

Litre of petrol (8.2e+6× your value)8.17e+6 cal

Other Calorie (th) to Erg conversions

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

Calorie (th) to Erg Conversion Table

Calorie (th) (cal)	Erg (erg)
0.5	20,920,000
1	41,840,000
2	83,680,000
5	209,200,000
10	418,400,000
15	627,600,000
20	836,800,000
25	1,046,000,000
50	2,092,000,000
100	4,184,000,000.000001
250	10,460,000,000
500	20,920,000,000
1000	41,840,000,000

Erg to Calorie (th) Conversion Table

Erg (erg)	Calorie (th) (cal)
0.5	1.195029e-8
1	2.390057e-8
2	4.780115e-8
5	1.195029e-7
10	2.390057e-7
15	3.585086e-7
20	4.780115e-7
25	5.975143e-7
50	1.195029e-6
100	2.390057e-6
250	5.975143e-6
500	1.195029e-5
1000	2.390057e-5

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.

Calorie (th) (cal)

Energy

Exact conversion

The thermochemical calorie is exactly 4.184 J.

The International Table calorie (4.1868 J) and the 15 °C calorie differ slightly.

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 Calorie (th) to Erg

To convert from Calorie (th) (cal) to Erg (erg), multiply the value by 41,840,000.

Formula: erg = cal × 41,840,000

Reverse: cal = erg × 2.390057e-8

Step-by-Step Example

Start with your value in Calorie (th). For example: 5 cal
Multiply by the conversion factor: 5 x 41,840,000
The result is: 209,200,000 erg

About Calorie (th)

The thermochemical calorie equals 4.184 joules. Not to be confused with the food Calorie (kcal), which equals 1,000 calories.

Common uses: chemistry, nutrition, heating.

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 Calorie (th)?

There are exactly 41,840,000 Erg in 1 Calorie (th). This means the conversion factor from Calorie (th) to Erg is 41,840,000.

What is the formula to convert Calorie (th) to Erg?

The formula to convert Calorie (th) to Erg is: erg = cal × 41,840,000. For example, to convert 10 Calorie (th) to Erg, you would multiply 10 by 41,840,000.

What is a Calorie (th)?