All Free Party & Event Calculators
Browse all 92 free calculators across 10 categories. Every tool uses UK measurements and catering standards.
Calculate how much alcohol, soft drinks, mixers, and ice you need for any party or event.
Party Drinks Calculator
Work out the total drinks needed for your party or event, covering beer, wine, spirits and soft drinks per guest. Free online calculator.
Wine Calculator
Calculate exactly how many bottles of wine to buy for your party based on guest numbers, event duration and drinking habits. Free online tool.
Beer Calculator
Estimate how many cans, bottles or kegs of beer to buy for your party or event based on guest count and duration. Free online calculator.
Spirits Calculator
Work out how many bottles of spirits you need for your party including measures per guest and popular mixer pairings. Free online calculator.
Punch Bowl Calculator
Calculate punch ingredients, serving quantities and bowl sizes for your party. Get the perfect ratio of juice, spirits and fruit. Free calculator.
Ice Calculator
Estimate how many bags of ice you need for party drinks, coolers and ice buckets based on your guest count and event length. Free calculator.
Mixers Calculator
Calculate how many bottles of tonic, cola, lemonade and other mixers to buy for your party based on spirit quantities. Free online calculator.
Non-Alcoholic Drinks Calculator
Plan soft drink, juice and water quantities for your party or event. Ensure every guest stays refreshed throughout. Free online calculator.
Champagne Calculator
Work out how many bottles of champagne or prosecco you need for toasts, receptions and celebrations based on guest numbers. Free calculator.
Cocktail Bar Calculator
Plan your cocktail bar with the right quantities of spirits, mixers, garnishes and ice for each guest at your party. Free online calculator.
Plan the right amount of food for buffets, BBQs, pizza parties, kids parties, and more.
Party Food Calculator
Calculate the right amount of food per guest for your party, covering mains, sides, salads and snacks. Plan catering with confidence. Free calculator.
Pizza Party Calculator
Work out how many pizzas to order for your party based on guest numbers, appetites and topping variety. Never over or under-order again. Free tool.
BBQ Calculator
Estimate how much meat, burgers, sausages, buns and sides you need for your barbecue based on guest numbers. Plan the perfect BBQ. Free calculator.
Buffet Calculator
Plan a balanced buffet spread with the right portions of hot food, cold platters and sides per guest for your event. Free online calculator.
Finger Food Calculator
Calculate how many canapes and finger food pieces to prepare per guest for your party or drinks reception. Free online planning tool.
Dessert Calculator
Work out dessert portions and quantities for your party or event, covering cakes, tarts, fruit and sweet treats per guest. Free calculator.
Cheese Board Calculator
Plan the perfect cheese board with the right amounts of cheese, crackers, chutney and accompaniments for your guests. Free online calculator.
Cake Size Calculator
Choose the right cake size and number of tiers for your celebration based on guest count and portion sizes. Free online party calculator.
Snack Bowl Calculator
Calculate how many bags of crisps, nuts, popcorn and other snacks to buy for party bowls based on your guest count. Free online calculator.
Kids Party Food Calculator
Plan child-friendly portions for a kids party tea including sandwiches, sausage rolls, fruit and treats per child. Free online calculator.
Plan balloons, bunting, fairy lights, centrepieces, and all the decorations for your celebration.
Balloon Calculator
Calculate how many balloons you need for your party venue, including latex, foil and helium options for any celebration. Free online calculator.
Bunting Calculator
Work out how many metres of bunting to buy for your party venue or garden based on the space you want to decorate. Free online calculator.
Streamer Calculator
Estimate how many rolls of streamers and crepe paper you need to decorate your party venue or celebration space. Free online calculator.
Table Decoration Calculator
Plan centrepieces, runners and table decorations for each table at your party or event. Get quantities right first time. Free calculator.
Confetti Calculator
Calculate how much confetti you need for your celebration, wedding send-off or party table scatter based on guest numbers. Free calculator.
Banner Calculator
Work out the right banner sizes and quantities to decorate your party venue, including happy birthday and custom message banners. Free calculator.
Fairy Light Calculator
Calculate how many metres of fairy lights you need to decorate your party venue, marquee or garden for a magical celebration. Free calculator.
Centrepiece Calculator
Plan centrepiece materials and quantities for each table at your event, from flowers and candles to themed displays. Free online calculator.
Balloon Arch Calculator
Estimate how many balloons you need to build a stunning balloon arch or garland for your party entrance or backdrop. Free online calculator.
Flower Arrangement Calculator
Calculate the number of stems, vases and arrangements needed for your party or event table decorations and displays. Free online calculator.
Calculate guest capacity, dance floor size, table layouts, marquee dimensions, and facilities needed.
Guest Capacity Calculator
Work out how many guests fit comfortably in your venue based on room dimensions, layout style and standing or seated arrangements. Free calculator.
Dance Floor Calculator
Calculate the ideal dance floor size for your party or wedding based on guest count and how many people will be dancing. Free online calculator.
Table Layout Calculator
Plan table sizes, quantities and room layout for your event. Choose from round, rectangular or banquet-style arrangements. Free online calculator.
Chair Calculator
Estimate how many chairs you need for your event including ceremony, dining and spare seating for all your guests. Free online party calculator.
Marquee Size Calculator
Calculate the right marquee dimensions for your event based on guest numbers, table layout, dance floor and bar areas. Free online calculator.
Tent Calculator
Work out the right tent or gazebo sizes and quantities for your outdoor party, festival or garden event. Plan for all weather. Free calculator.
Car Park Calculator
Estimate how many parking spaces you need for your event guests based on attendance, car sharing and venue location. Free online calculator.
Toilet Calculator
Calculate how many portable toilets or loos you need for your outdoor event based on guest numbers and event duration. Free online calculator.
Plan and track party budgets, per-guest costs, and spending across every category.
Party Budget Calculator
Create a complete party budget covering food, drinks, venue, decorations and entertainment. Track spending across all categories. Free online calculator.
Per Guest Cost Calculator
Calculate the total cost per guest for your party including food, drinks, venue and extras. Plan your event budget with ease. Free calculator, no signup.
DJ vs Band Calculator
Compare the costs of hiring a DJ versus a live band for your party or wedding, including equipment, duration and extras. Free online calculator.
Venue Cost Calculator
Estimate and compare venue hire costs for your party or event, including room hire, catering packages and hidden extras. Free online calculator.
Decoration Budget Calculator
Plan your party decoration budget across balloons, flowers, table settings and themed items. Stay on track with your spending. Free online calculator.
Catering Budget Calculator
Budget for food and drink costs per head at your party or event. Cover starters, mains, desserts and beverages within your budget. Free calculator.
Photography Budget Calculator
Estimate photography and videography costs for your party or wedding, including hours of coverage, prints and albums. Free online calculator.
Gift Budget Calculator
Plan your spending on party favours, guest gifts and prizes. Calculate total costs based on guest numbers and gift type. Free online calculator.
Invitation Budget Calculator
Calculate the total cost of party invitations including design, printing, postage and stationery for your guest list. Free online calculator.
Entertainment Budget Calculator
Budget for party entertainment including DJs, bands, games, photo booths and activities. Keep event costs under control. Free online calculator.
Manage guest lists, RSVPs, seating plans, and invitation quantities for your event.
Guest List Calculator
Plan your party guest list with expected attendance rates and manage numbers for invites, food and seating. Free online event planning calculator.
RSVP Calculator
Estimate how many guests will actually attend your party based on typical RSVP acceptance rates for different event types. Free online calculator.
Seating Plan Calculator
Work out the best table arrangements and seating layout for your party or wedding guests. Optimise your venue space. Free online planning tool.
Table Assignment Calculator
Calculate how to distribute guests evenly across tables at your event, balancing group sizes and table capacities. Free online calculator.
Plus One Calculator
Estimate the total guest count when offering plus-one invitations. Plan for additional attendees at your party or wedding. Free online calculator.
Invite Quantity Calculator
Calculate exactly how many invitations to print for your party or wedding, including spare copies and household groupings. Free online calculator.
Save the Date Calculator
Work out how many save-the-date cards to send and when to post them for your wedding or special event. Free online planning calculator.
Thank You Card Calculator
Calculate how many thank you cards you need after your party, wedding or event, including spares and grouped households. Free online calculator.
Plan party bags, games, crafts, prizes, and all the supplies for a brilliant kids party.
Party Bag Calculator
Calculate party bag contents and quantities for each child at your kids party. Plan sweets, toys and treats per bag. Free online calculator.
Game Supplies Calculator
Work out all the supplies needed for kids party games and activities, from musical statues to pass the parcel. Free online planning calculator.
Craft Activity Calculator
Plan craft materials and supplies for each child at your party, including paint, paper, glue and decorating items. Free online calculator.
Prize Calculator
Estimate how many prizes and rewards you need for kids party games and competitions. Budget for winners and runners-up. Free online calculator.
Cake Candle Calculator
Calculate birthday cake candles, sparklers, toppers and decorations needed for your celebration. Get the perfect cake display. Free online calculator.
Helium Balloon Calculator
Work out the right helium tank size and number of balloons for your kids party or celebration. Includes float time estimates. Free online calculator.
Pinata Calculator
Calculate how many sweets, toys and fillers you need for your party pinata based on the number of children attending. Free online calculator.
Face Paint Calculator
Estimate face paint colours, brushes, sponges and supplies needed for your kids party based on guest numbers and designs. Free online calculator.
Bouncy Castle Calculator
Work out the right bouncy castle size for your kids party based on the number of children, ages and available garden space. Free online calculator.
Party Hat Calculator
Calculate how many party hats, crowns, tiaras and accessories you need for your kids party including spares. Free online party calculator.
Plan every detail of your wedding from guest numbers and budgets to flowers, favours, and timelines.
Wedding Guest Calculator
Plan your wedding guest list with separate day and evening numbers, plus ones and expected attendance rates. Free online wedding planning tool.
Wedding Budget Calculator
Create a comprehensive wedding budget covering venue, catering, flowers, photography and every other category. Track your spending. Free calculator.
Wedding Cake Calculator
Choose the right wedding cake size and number of tiers based on your guest count. Get perfect portions for your big day. Free online calculator.
Wedding Flower Calculator
Calculate flower quantities for your wedding ceremony, reception, bouquets and table arrangements. Plan stems and costs. Free online calculator.
Wedding Favour Calculator
Work out wedding favour quantities and costs for your guests, including packaging, contents and spare favours. Free online wedding calculator.
Bridesmaid Bouquet Calculator
Plan bouquet sizes and flower quantities for the bride, bridesmaids, flower girls and buttonholes for your wedding party. Free online calculator.
Table Plan Calculator
Create a wedding table plan with the right number and size of tables to seat all your day and evening guests comfortably. Free online calculator.
Wedding Timeline Calculator
Plan your wedding day schedule from getting ready through to the last dance, with realistic timings for every moment. Free online planning tool.
Wedding Confetti Calculator
Calculate how much confetti, petals or rice you need for your wedding send-off based on guests and throwing style. Free online calculator.
Wedding Stationery Calculator
Work out all the wedding stationery you need from save-the-dates and invites to orders of service and place cards. Free online calculator.
Plan seasonal celebrations including Christmas, Halloween, Bonfire Night, and summer BBQs.
Christmas Party Calculator
Plan food, drinks, decorations and Secret Santa for your Christmas party based on guest numbers and budget. Free online festive planning tool.
Halloween Party Calculator
Calculate sweets for trick-or-treaters, spooky decorations and party supplies for your Halloween celebration. Free online event calculator.
Easter Egg Hunt Calculator
Work out how many Easter eggs to buy and hiding spots you need for your egg hunt based on the number of children attending. Free calculator.
Bonfire Night Calculator
Plan fireworks, sparklers, toffee apples, hot dogs and supplies for your Bonfire Night or Guy Fawkes celebration. Free online calculator.
New Year Party Calculator
Calculate champagne, drinks, food and party supplies for your New Year's Eve celebration based on guest numbers. Free online event calculator.
Summer BBQ Calculator
Plan a summer barbecue with the right amounts of meat, sides, salads, drinks and supplies for your garden party guests. Free online calculator.
Pancake Day Calculator
Calculate batter ingredients, toppings and quantities for Shrove Tuesday pancakes based on the number of people you are feeding. Free calculator.
Burns Night Calculator
Plan a traditional Burns Night supper with the right quantities of haggis, neeps, tatties and whisky for your guests. Free online calculator.
Calculate plates, cutlery, glasses, napkins, and tablecloths for any event or celebration.
Plate Calculator
Calculate how many plates you need for each course at your party or event, including dinner, side and dessert plates. Free online calculator.
Cutlery Calculator
Work out how many knives, forks, spoons and serving utensils you need for your party based on courses and guest count. Free online calculator.
Glass Calculator
Calculate how many wine glasses, tumblers, flutes and other glassware you need for different drinks at your event. Free online calculator.
Napkin Calculator
Estimate how many paper or cloth napkins you need for your party or event based on guest numbers and meal courses served. Free online calculator.
Tablecloth Calculator
Calculate the right tablecloth sizes and quantities for your party tables, including round, rectangular and trestle options. Free online calculator.
Serving Dish Calculator
Plan how many serving dishes, platters, bowls and utensils you need for your party buffet or family-style dining. Free online calculator.
Cup Calculator
Calculate how many cups, mugs and saucers you need for tea, coffee and hot chocolate at your party or event. Free online calculator.
Disposable Tableware Calculator
Work out how many disposable plates, cups, cutlery and napkins to buy for your party. Reduce waste by ordering the right amount. Free calculator.
Why Use PartyCalcs?
Every calculator on this page is completely free, requires no signup, and works on any device. All tools use UK measurements and portion standards so your estimates are accurate for British events.
Whether you're planning a small birthday, a large wedding, or a corporate Christmas party, PartyCalcs helps you get accurate estimates for food, drinks, decorations, and budgets. No hardcoded prices — you enter your own costs for estimates tailored to your suppliers.