Q:

# How many pennies does it take to make 100 grams?

A:

Since U.S. pennies weigh 2.5 grams each, it takes 40 pennies to make 100 grams. However, pennies minted before 1982 weigh 3.11 grams, so it would take only 33 of them to add up to 100 grams.

Know More

The weight discrepancy between pennies minted before and after 1982 is a result of different compositions. Pre-1982 pennies are composed of 95 percent copper, while post-1982 pennies are 97.5 percent zinc and coated with a thin layer of copper. The U.S. Mint switched to making pennies primarily out of zinc because copper had become prohibitively expensive. Both copper and zinc pennies were minted in 1982; a scale is the only way to tell the composition of a penny minted in that year.

Sources:

## Related Questions

• A:

Exactly 453.592 grams are equivalent to 1 pound. Depending on what is being weighed or the conversion chart being used, 453.592 is often rounded to the closest whole number of 454 grams or to 453.6 grams.

Filed Under:
• A:

Although one can convert 100 grams to cups, the conversion factor or equivalent is different, depending on the specific ingredient. Grams and cups also are two different types of measurements.

Filed Under:
• A:

According to the U.S. Mint, one penny weighs 2.5 grams, which means 100 pennies weigh 250 grams. That equals 8.81 ounces or a little over half a pound.