Party Planner
Calculate party shopping quantities from guests, hours, and party type using per-head ratios.
Written by Golam Rabbani, Founder & Lead Engineer
How to use this party planner
- Enter the number of guests (1–500) in the "Number of guests" field.
- Choose a party type from the dropdown: Casual get-together, Dinner party, Cocktail party, Kids' party, or Birthday party.
- Enter the duration in hours (1–12) in the "Duration (hours)" field.
- Tick or untick "Include alcohol estimates" to control whether beer and wine appear in the list.
- Optionally add custom items using the "Add custom shopping item" section, then press "Calculate shopping list" to generate your quantities.
About this party planner
The party planner calculates a per-item shopping list scaled to your guest count, party type, and duration. For each of the five party formats it applies a fixed ratio set — appetizers per guest per hour, grams of main food, cans of soft drinks, beer cans, wine bottles, ice in kg, snack portions, and dessert portions — to produce a ready-to-copy list in one click.
The formula for appetizers runs slightly differently from the rest: the first hour uses a higher "first-hour" rate, and each additional hour adds at the lower "extra-hour" rate. Beer and wine quantities scale with both guest count and duration (e.g. beer = ceil(guests × beer_rate × hours)). Wine is converted from glasses to bottles at five glasses per bottle. All other items are straight multiplications rounded to one decimal place. Custom items you add manually are appended to the list unchanged.
For example, enter 20 guests, Cocktail party, 3 hours, and alcohol on. The tool produces: 280 pieces of appetizers (ceil(20 × (6 + 4×2))), 3 kg of main food (20 × 150 g), 60 soft drink cans, 45 beer cans (ceil(20 × 0.75 × 3)), 30 wine bottles (20 × 2.5 glasses × 3 h ÷ 5), and 10 kg of ice (20 × 0.5 kg). Tick the pre-built to-do checklist — invitations, venue, music, ice, plates, and more — to track preparation alongside the shopping list.
The tool is useful for anyone organising a home gathering, birthday celebration, or casual event and wanting a quick, adjustable quantities reference without manual arithmetic.
FAQ
- What does the party planner calculate?
- It produces a quantity-per-item shopping list covering appetizers, main food, snacks, dessert, soft drinks, water, ice, and optionally beer and wine. Quantities are scaled to your guest count, party type, and duration using fixed per-guest ratios.
- What happens if I untick "Include alcohol estimates"?
- Beer and wine lines are removed from the shopping list entirely. All non-alcoholic items — soft drinks, water, food, ice — remain unchanged regardless of the checkbox state.
- Can I add custom items to the list?
- Yes. Use the "Add custom shopping item" section to enter an item name, quantity, and unit, then press "Add item". Custom items appear at the bottom of the results list marked with an asterisk and are included when you copy the list to your clipboard.
- How accurate are the quantities?
- They are rule-of-thumb estimates based on typical consumption rates per party format, not a guarantee. Adjust up or down for your guests' known appetites, dietary requirements, and whether the event includes a full meal or light grazing.
- Does the tool store my inputs?
- Yes — inputs, custom items, and checklist state are saved to your browser's localStorage under the key "toolnest:party-planner", so they survive a page reload. Nothing is sent to a server. Clearing site data or using private/incognito mode will wipe the stored state.
- Is the party planner free?
- Yes, it is completely free with no account or signup required.