Catering Portion Calculator
Calculate how much food and how many portions you need per guest for a party or event with this free catering calculator in your browser.
Enter Values
Minimum 0
How to use this calculator
- Enter the number of guests and the serving per person (g).
- Read the total needed.
How it works
Total = guests × serving per person.
Worked example
50 guests at 200 g. = 10 kg.
Common mistakes
- Under-catering — add ~10% spare and extra for big eaters.
- Using cooked weight where the recipe means raw (or vice versa).
Frequently asked questions
How much food do I need per person?
It varies by course and appetite — the tool scales standard per-head portions by your guest count so you can shop with confidence.
Should I cater for extra guests?
Adding about 5–10% headroom covers bigger appetites and no-shows balancing out; for buffets, people tend to take a little more.
How much food per person?
As a guide: ~150–200 g main protein, ~75 g dry rice/pasta, plus sides. Scale up for hearty appetites.
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Cite this tool
Zerdly. (2026). Catering Portion Calculator. Retrieved from https://www.zerdly.com/tools/catering-portion-calculator/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.