# How much is a gallon of pennies worth \$\$\$ ?

#### light_emitting_dude

##### Flashlight Enthusiast
I have a glass gallon jar that I am using to collect my pennies. It is about 3/4 full and I will cash it in when it gets full. Luckily my credit union offers a free service to do this. Does anyone know approximately how much my gallon of pennies will be worth when it gets full? Hey maybe I can use this to buy a new flashlight!

##### Flashlight Enthusiast
i also have a gallon jar that is an old glass colorox bleach jug. it to is about 85% full . i think it is about worth 20 bucks of so?

#### Nitroz

##### Flashlight Enthusiast

For pennies (diameter: 0.75", thickness: 1.55 mm) the above computation would give a "V" of about 0.029727 cu in, or about 7771 pennies per gallon.

#### Valpo Hawkeye

##### Flashlight Enthusiast
Nitroz said:

For pennies (diameter: 0.75", thickness: 1.55 mm) the above computation would give a "V" of about 0.029727 cu in, or about 7771 pennies per gallon.

Yes, but the pennies can't occupy the volume of the gallon perfectly due to their shape and the fact that they aren't hand-packed one at a time into the container. However, your calculation certainly gets us headed the right way. I say approx. \$55.

#### BB

##### Flashlight Enthusiast
Contest anyone? :lolsign:

-Bill

#### Nitroz

##### Flashlight Enthusiast
Valpo Hawkeye said:
Yes, but the pennies can't occupy the volume of the gallon perfectly due to their shape and the fact that they aren't hand-packed one at a time into the container. However, your calculation certainly gets us headed the right way. I say approx. \$55.

Yes, the 7771 pennies would have to be perfectly packed. That was just something I googled and not my calculation.

If we had a contest, someone would need alot of pennies and settle on what to use for a gallon container.

#### Illum

##### Flashaholic
weigh a single penny, then weigh an equivalent container, then weigh the container full of pennies

this'll give you a generalized idea of worth in cents

#### ABTOMAT

##### Flashlight Enthusiast
Pennies are worth more as metal (zinc alloy) than currency, I think.

#### swampgator

##### Enlightened
I have a quart jelly jar half full of pennies. Last count was less than \$3.

But the quart jar of quarters is one day going to pay for my Corvette!

#### Morelite

##### Flashlight Enthusiast
I can tell you that a five gallon bucket (drywall joint compound) full will yield almost \$400, Can't remember the exact figure but it was in the 390's.

Oh, BTW, I gallon of quarters has yielded me close to \$1,000

#### winny

##### Flashlight Enthusiast
Illum_the_nation said:
weigh a single penny, then weigh an equivalent container, then weigh the container full of pennies

Good idea!

Better idea: Do the same but weigh ten pennies. That will give you ten times the accuracy.

Even better: Coins are manufactured with very good precision. Your national bank can most likely provide you with a weight-figure for them, or perhaps google. Then do what Illum_the_nation suggested.

#### light_emitting_dude

##### Flashlight Enthusiast
So about \$70-\$80 for a gallon of pennies approximately? Sounds about right.
When I cash it in I will dig up this post and give the exact amount!

#### bwaites

##### Flashlight Enthusiast
Pennies aren't all copper, guys!! To use weight, you have to know the right alloy of zinc-copper (I think that is what pennies are now!) If I have it right, they are 97.5% zinc, 2.5% copper.

Bill

#### fire-stick

##### Enlightened
I'd like a 5 gallon jug of those sacagawea dollar!

#### Nitroz

##### Flashlight Enthusiast
wow mine weighs something like 30 or so pounds. how much would that be:thinking:

Maybe around \$50.

#### bjn70

##### Flashlight Enthusiast
My mother has 2 or 3 5-gallon jugs full of pennies.

#### KC2IXE

##### Flashaholic*
\$54 - or at least that is what my gallon of pennies in a Gallo Wine "port" gallon was worth - plus a few cents

#### Trashman

##### Flashlight Enthusiast
bwaites said:
To use weight, you have to know the right alloy of zinc-copper

Bill

No you don't! You only need to know the weight of a penny, the weight of the jar, and the weight of the jar with the pennies in it!

Back when I was 17 and had my first job working for Selecta Switch, Inc., I used to have to count their advertisement papers using a scale. I'd weight one single sheet of paper, set that as 1, and then drop any size stack of papers on the scale and it would actually count how many papers were on the scale! If there were a thousand sheets on the scale and I removed 1, it would register!