Created by Piotr Małek
Reviewed by Steven Wooding and Jack Bowater
Last updated: Jun 05, 2023

You enter your kitchen, make a cup tea, toast a few slices of bread, and reach for your favorite spread - a big jar of Nutella. You reach into the cupboard, you open it while sipping your tea, and you suddenly feel your heart in your throat. The jar is empty, again! "That's the 4th one this month, (insert rivals name here)!" - you shout. Sound familiar?

Those sweet goodies disappear faster than we can predict, and there's nothing us addicts can do about it. However, to help you keep track of your spending on Nutella, peanut butter, jams, hummus, and some others, we developed this simple calculator.

First of all, choose the type of product you usually spread on your bread. Below, we list the 8 common foodstuffs that feature in this tool. If your favorite spread didn't make the list, you can input its density directly into the density field:

Product Name

Density [g/cm3]

Density [oz/in3]

US teaspoon weight [g]

US teaspoon weight [oz]

Nutella

1.200

0.694

6.000

0.212

Peanut butter, smooth style, with salt

1.082

0.625

5.410

0.191

Nuts, almond butter, with salt

1.082

0.625

5.410

0.191

Hummus, commercial

1.014

0.586

5.070

0.179

Ricotta cheese, whole milk

1.048

0.606

5.240

0.185

Cottage cheese, creamed, large curd

0.951

0.550

4.755

0.168

0.981

0.567

4.905

0.173

Apricot jam

1.353

0.782

6.765

0.239

We use the conversion that 1 teaspoon is equal to 5 cm3. So, if you do not have the density of the bread spread, but instead have the weight of one teaspoon, just divide the weight by 5, and you'll be good to go! You may also find our grams to cups calculator useful if you want to change from teaspoons to cups.

To make accurate calculations, the densities were provided by . We set 3 as the default number of teaspoons used based on various online sources, but of course, this number can be adjusted based on your needs (and how hungry you are!). Keep in mind that values are approximate, so don't risk not having your favorite spread because the calculator told you it would last for one more day. Bon Appétit!

💡 Looking for more breakfast ideas? The pancake recipe calculator can help you determine the measurements of ingredients 🥞 and with the egg boiling calculator, you can find out how long you should boil an egg 🍳

Piotr Małek
Product
Nutella
Density
g/cm³
/person
Eating frequency
/week
Teaspoons per slice
People eating
Jar capacity
oz
Jar lasts for
days
Cost of a jar
$Total cost$/
yr
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