PartyCalcs.uk
Catering Budget Calculator — Food & Drink Costs
Budget for food and drink costs per head for any party or event.
How We Calculate This
This calculator estimates total catering costs from per-head food and drink rates plus fixed costs, then adds a service charge, optional gratuity and a contingency buffer.
Formula
- Food total = food cost per head × guests
- Drinks total = drinks cost per head × guests
- Subtotal = food + drinks + staff + equipment hire
- Total catering = subtotal × (1 + service charge% + gratuity% + contingency%)
- Cost per head = total catering ÷ guests
- Budget remaining = your budget − total catering
Defaults applied in Advanced Options: 12.5% service charge (the UK convention for waited catering), 0% gratuity and a 5% contingency buffer. Leave Food Cost per Head blank to use a typical UK rate for your chosen service style (self-catered ≈ £8, catered buffet ≈ £22, sit-down ≈ £42, canapés ≈ £14 per head).
Frequently Asked Questions
Self-catered buffets cost £5-£12 per head. Catered buffets run £15-£30. Sit-down meals from caterers cost £25-£60 per head. Canapes are £8-£20 per person for 6-10 pieces. Drinks add £10-£25 per head depending on whether you include alcohol.
Self-cater with batch-cooked dishes. Choose a buffet over a sit-down meal. Limit the bar to beer, wine, and one cocktail. Buy drinks wholesale. Ask guests to bring a bottle. Serve fewer courses. Choose seasonal ingredients and avoid premium items.
For a sit-down meal with 40+ guests, you will need waiting staff (typically £12-£18 per hour each). Buffets need fewer staff. Self-catered events can manage without hired staff for under 30 guests if friends help. Allow 1 waiter per 20-25 guests for a buffet, 1 per 10-12 for table service.
Food and drink typically account for 35-45% of a total party budget. For weddings, it can be 40-50%. If your venue includes catering, this combined cost (venue + food) might be 60-70% of total spend.
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Last updated: February 2026
All calculations are estimates. Adjust quantities based on your guests and event type.