Ice Cream Sundae Bar Calculator

How it works

Portions = adults + children × 0.7 · Scoops = portions × scoops per guest × (1 + margin) · Ice cream = scoops × scoop size (standard ½ cup = 4 fl oz ≈ 118 ml) · Gallons = fl oz ÷ 128 · Containers = ice cream ÷ container size, rounded up to an equal number per flavor · Each sauce = portions × sauce per guest ÷ number of sauces · Each topping = portions × toppings per guest ÷ number of toppings · Whipped cream ≈ 3 tbsp per sundae (heavy cream doubles when whipped)

The ice cream comes straight from the headcount, the scoops per guest and the scoop size. A standard scoop is half a cup (4 fl oz, about 118 ml), so a gallon holds 32 scoops and a 1.5-quart tub about 12. Children under 10 count as about 70% of an adult portion. A safety margin, 10% by default, covers seconds, melting and heavy-handed scooping. The total is then turned into the containers you will actually buy, from pints and liters to 3-gallon foodservice tubs, and rounded up so every flavor gets the same number. Sauces and toppings are planned as a total per guest (¼ cup of sauce and ¼ cup of toppings by default) and split evenly across the kinds you offer. Whipped cream, cherries, bowls, spoons and napkins follow the guest count. Add the price per container to see the ice cream cost.

Worked example

For 30 guests at 2 standard scoops each with a 10% margin: 30 × 2 × 1.1 = 66 scoops, × 4 fl oz = 264 fl oz, which is about 2.1 gallons (7.8 L). In 1.5-quart tubs (48 fl oz) that is 264 ÷ 48 = 5.5, so 6 tubs, 2 of each of 3 flavors. Two sauces at ¼ cup per guest need 30 × 4 ÷ 2 = 60 tbsp, about 3.8 cups of each. Six toppings need about 1¼ cups each, plus about 5½ cups of whipped cream (two 8-oz tubs), 60 cherries and 33 bowls and spoons.

Frequently asked questions