working out cals in store brought food

Pearlyladybug

Does anyone know of a quick and simple way to work out how many cals are in somthing

eg. Today i have been sick and not been able to eat the lunch i made and brought to work, I need some sugar as i was fading quickly so i brought some gluten free fudge ( not the bed choice but thought i was going to die haha)

The back reads like this
kj 381.84
protein .5
fat 3.85
carbs 13.61
sugar 12.22

thoughts?

CoraGregoryCPA

You should be able to figure the calories as long as you have the fat, protein and carbs. <---that's the 3 ingredients that make up calories. Gooogle it for the equation.

Pearlyladybug

I have googled it but haven't managed to mind anything helpful, I have a really bad headache so i could not be looking in the right places

BlueObsidian

http://www.rapidtables.com/convert/energy/kj-to-kcal.htm

Pink_turnip

it's around 92

http://www.asknumbers.com/kilojoules-to-calories.aspx

mareeee1234

Divide the Kilojules by 4.2

Pearlyladybug

cheers guys

Pearlyladybug

Divide the Kilojules by 4.2

Easy! just what i wanted! thank you

mareeee1234

Divide the Kilojules by 4.2

Easy! just what i wanted! thank you

My pleasure! Just remember that number and you're good to go!