Cooking & Baking calculator
Party Planner
Party Planner. Use the actual product label and your measured quantities. Starting values are editable examples, not universal rates or product specifications. Keep the units beside each input.
Method and practical checks
- The retained example uses two adult servings in the first hour and one per later hour, with child volumes at 75%. These are editable event-planning assumptions, not alcohol recommendations.
- Events shorter than one hour use that fraction of the first-hour rate. Include water and non-alcoholic choices.
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Your measurements and assumptions
Use the actual product label and your measured quantities. Starting values are editable examples, not universal rates or product specifications. Keep the units beside each input.
| Adults | 10 | |
|---|---|---|
| Children | 4 | |
| Event duration | 4 | h |
| Adult servings in the first hour | 2 | |
| Child servings in the first hour | 1.5 | |
| Adult servings per later hour | 1 | |
| Child servings per later hour | 0.75 | |
| Serving size | 250 | ml |
| Extra allowance | 10 | % |
| Pack size | 1.5 | L |
Method and assumptions
servings = first_hour_rate * min(hours,1) + later_rate * max(hours-1,0), multiplied by each guest group
Portions are editable examples. A meal replacement needs more pieces than a short drinks reception; plan the menu rather than applying one universal hourly rule.
Count each dish separately so you do not buy a full meal portion of every item.
Use portions appropriate to the cut and appetite. Bone, trimming and cooking losses vary; this is not a BBQ-specific plan.
Previous planning examples were 180 g for a side, 250 g for roast or mash, and 350 g as a main ingredient, with child portions at 60%. These are editable examples, not universal portions.
The child example is 65% of the adult portion. Change both portions for a starter or a main meal; carton or batch size must use millilitres.
The child example is 65% of the adult portion. Follow the mix instructions for added liquid and yield; pancake size and appetite vary.
Drink rates are editable planning assumptions, not alcohol recommendations. Include water and non-alcoholic choices.
The retained example uses two adult servings in the first hour and one per later hour, with child volumes at 75%. These are editable event-planning assumptions, not alcohol recommendations.
Events shorter than one hour use that fraction of the first-hour rate. Include water and non-alcoholic choices.
The default is an example, not a weather-proof rule. Storage, heat and duration change melt losses; adjust the allowance.
Every adult and child is counted equally. Calculate each supply separately; include extra courses or replacements in pieces per person.
Table capacity must reflect the real layout and accessible seating. Children count as whole seated people.
Use recipients for the people receiving bags. Calculate each type of filler separately when its pack size differs.
Example with the selected inputs
- Servings: 72
- Required quantity: 17.875 L
- Packs to buy: 12
- Purchase quantity: 18 L
- Left over: 0.125 L
Change the inputs to match your own task. Whole packages are rounded up after allowances, so purchase quantity and actual requirement can differ. Apply each allowance once.