Dry Ice Calculator

Formula

The formula to calculate the amount of dry ice needed (Di) is:

\[ Di = \frac{T \times 15 \times CS}{75} \]

Where:

\( Di \) is the Amount of Dry Ice (lbs)
\( T \) is the Time Needed to Keep Items Cool (days)
\( CS \) is the Cooler Size (quarts)

What is Dry Ice?

Dry ice is the solid form of carbon dioxide that is achieved when the CO₂ is cooled to very low temperatures. The CO₂ must reach temperatures of -110°F in order to become solid.

Example Calculation

Let's consider an example:

Time Needed to Keep Items Cool (T): 3 days
Cooler Size (CS): 50 quarts

Using the formula to calculate the amount of dry ice needed:

\[ Di = \frac{3 \times 15 \times 50}{75} = 30 \, \text{lbs} \]

This demonstrates that with a time of 3 days and a cooler size of 50 quarts, the amount of dry ice needed would be approximately 30 lbs.