How many Gigajoules are in one calorie?

There are 4.184e-9 Gigajoules in one calorie. This means 1 cal equals 4.184e-9 GJ.

What is the formula for calories to Gigajoules?

The conversion formula is: Gigajoules = calories × 4.184e-9. Simply multiply your value in calories by 4.184e-9 to get the result in Gigajoules.

Convert calories to Gigajoules (cal to GJ)

Use this tool to convert between energy units like Watt-second, Watt-minute, Watt-hour etc.

Amount

From

Result

4.184e-8

Use this calculator to convert calories (cal) to Gigajoules (GJ) with ease. Get accurate energy conversions instantly.

How to Convert calories to Gigajoules

Converting calories to Gigajoules is straightforward. The conversion formula is:

Gigajoules = calories × 4.184e-9

This means that 1 calorie equals 4.184e-9 Gigajoules. Conversely, 1 Gigajoule equals 239005736.13767 calories.

Example Calculation

To convert 10 calories to Gigajoules:

10 cal × 4.184e-9 = 4.184e-8 GJ

Common calories to Gigajoules Conversions

100 cal = 4.184e-7 GJ
500 cal = 0.000002092 GJ
1000 cal = 0.000004184 GJ
5000 cal = 0.00002092 GJ
10000 cal = 0.00004184 GJ

calories to Gigajoules Reference

The conversion ratio between calories and Gigajoules is:

1 cal = 4.184e-9 GJ
1 GJ = 239005736.13767 cal

Use this ratio to convert any value between these units.

Common Applications

Converting between calories and Gigajoules is frequently needed in:

Electrical consumption tracking
Nutritional energy calculations
Physics and engineering
Renewable energy systems

Whether you're working on a professional project or need conversions for everyday tasks, this energy converter provides accurate results instantly.

Frequently Asked Questions

How do you convert calories to Gigajoules?

To convert calories to Gigajoules, multiply the value by 4.184e-9. The formula is: Gigajoules = calories × 4.184e-9. For example, 100 cal = 4.184e-7 GJ.

How many Gigajoules are in 1 calorie?

There are 4.184e-9 Gigajoules in 1 calorie. This is the standard conversion factor for energy measurements.

What is the formula for converting cal to GJ?

The conversion formula is: GJ = cal × 4.184e-9. Simply multiply your calories value by 4.184e-9 to get the equivalent in Gigajoules.

How do you convert Gigajoules to calories?

To convert Gigajoules back to calories, multiply by 239005736.13767. The inverse formula is: calories = Gigajoules × 239005736.13767.

Is calories to Gigajoules conversion accurate?

Yes, this converter uses the standard international conversion factor of 4.184e-9, ensuring accurate and reliable results for all energy conversions.

When should I use calories vs Gigajoules?

calories and Gigajoules are different units of energy. Use calories for various applications and Gigajoules for various applications.

Quick Reference - cal to GJ

Quick reference table showing common calories to Gigajoules conversions. Use this chart for fast lookups of frequently used values.

cal	GJ
0.1 cal	4.184e-10 GJ
0.2 cal	8.368e-10 GJ
0.3 cal	1.2552e-9 GJ
0.4 cal	1.6736e-9 GJ
0.5 cal	2.092e-9 GJ
0.6 cal	2.5104e-9 GJ
0.7 cal	2.9288e-9 GJ
0.8 cal	3.3472e-9 GJ
0.9 cal	3.7656e-9 GJ

cal	GJ
1 cal	4.184e-9 GJ
2 cal	8.368e-9 GJ
3 cal	1.2552e-8 GJ
4 cal	1.6736e-8 GJ
5 cal	2.092e-8 GJ
6 cal	2.5104e-8 GJ
7 cal	2.9288e-8 GJ
8 cal	3.3472e-8 GJ
9 cal	3.7656e-8 GJ

cal	GJ
10 cal	4.184e-8 GJ
20 cal	8.368e-8 GJ
30 cal	1.2552e-7 GJ
40 cal	1.6736e-7 GJ
50 cal	2.092e-7 GJ
60 cal	2.5104e-7 GJ
70 cal	2.9288e-7 GJ
80 cal	3.3472e-7 GJ
90 cal	3.7656e-7 GJ

cal	GJ
100 cal	4.184e-7 GJ
200 cal	8.368e-7 GJ
300 cal	0.0000012552 GJ
400 cal	0.0000016736 GJ
500 cal	0.000002092 GJ
600 cal	0.0000025104 GJ
700 cal	0.0000029288 GJ
800 cal	0.0000033472 GJ
900 cal	0.0000037656 GJ

cal	GJ
1000 cal	0.000004184 GJ
2000 cal	0.000008368 GJ
3000 cal	0.000012552 GJ
4000 cal	0.000016736 GJ
5000 cal	0.00002092 GJ
6000 cal	0.000025104 GJ
7000 cal	0.000029288 GJ
8000 cal	0.000033472 GJ
9000 cal	0.000037656 GJ

cal	GJ
10000 cal	0.00004184 GJ
20000 cal	0.00008368 GJ
30000 cal	0.00012552 GJ
40000 cal	0.00016736 GJ
50000 cal	0.0002092 GJ
60000 cal	0.00025104 GJ
70000 cal	0.00029288 GJ
80000 cal	0.00033472 GJ
90000 cal	0.00037656 GJ

Related Tools

Unit Converter

Convert other units.

Base64 Encoder

Encode to Base64.

GUID Generator

Generate GUIDs.