Event Catering Calculator
How much food, drink and ice an event needs for its guests, hours and service style — canapé pieces and platters for a cocktail party, portions for a buffet or plated meal — and roughly what the food costs.
A cocktail event replaces a meal: pieces = guests × pieces per person per hour × hours; pre-dinner canapés run lighter at a fixed number per guest.
| Canapés | 2,000 |
|---|---|
| Drinks | 500 |
| Ice (kg) | 50 |
How the event catering calculator works
A cocktail event replaces a meal: pieces = guests × pieces per person per hour × hours; pre-dinner canapés run lighter at a fixed number per guest. Platters are pieces ÷ pieces per platter, rounded up; food cost is pieces × cost per piece. A buffet or plated service needs guests × 1.1 portions (a 10% buffer) at the per-head price. Drinks: two in the first hour, then one per person per hour; ice at about half a kilogram per guest.
Formula: Cocktail pieces = guests × per person per hour × hours · platters = ⌈pieces ÷ platter size⌉ · portions = guests × 1.1 · drinks = guests × (hours + 1)
How the catering quantities are worked out
Guests, hours and style set everything
Catering maths starts with three numbers: how many guests, how many hours, and the service style. For a cocktail party where canapés are the meal, the standard planning rate is about 5 pieces per person per hour, so total canapés = guests × hours × 5. If the canapés are only pre-dinner nibbles before a sit-down meal, drop to about 4 pieces per head for the pre-dinner window. Turn pieces into orders by dividing by the pieces per platter (usually around 20). For a buffet or plated meal you plan portions, not pieces: about guests × 1.1 covers second helpings. Drinks follow the classic rule guests × (hours + 1) — one for the first hour and one an hour after — and ice is about 0.5 kg per guest. Costs come from your own menu: cost per canapé, or a per-head rate for buffet and plated.
Worked example
A 4-hour cocktail party for 100 guests: canapés = 100 × 4 × 5 ≈ 2,000 pieces, which at 20 pieces a platter is 100 platters. At $3.30 a canapé that's about $6,600 of food, or $66 per head. The same party needs 100 × (4 + 1) = 500 drinks and 100 × 0.5 = 50 kg of ice. Switch to a buffet at $65 per head and 110 portions and the food budget lands near $7,150.
This is a planning estimate, not a quote. Real quantities depend on your menu, the time of day, the crowd and the weather. Use these numbers to brief your caterer or shop the party, then confirm the final order — it's better to have a little spare than to run short.
Portions, pieces & plattersCanapés, buffet portions and how many platters
How much food to serve depends entirely on whether the food is the meal or sits alongside one:
- Cocktail, canapés as the meal — ~5 pieces per person per hour. Over a 3–4 hour party that's 15–20 pieces a head, which stands in for dinner. Aim for a mix of hot, cold and something substantial.
- Pre-dinner nibbles — ~4 pieces per head. Just enough to go with the first drink before everyone sits down; more and guests won't have room for the meal.
- Buffet or plated — ~1.1 portions per guest. Plan a little over one serve each so the last guests through the line aren't short, and so there's cover for bigger appetites.
- Platters — pieces ÷ ~20. Most catering platters hold around 20 pieces, so 2,000 canapés is about 100 platters. Check your caterer's platter size — grazing boxes and share boards vary.
Weight the mix toward filling items late in a long event, and always round up when ordering — leftovers are easy to send home, but running out mid-party is not.
Drinks, ice & cost per headDrinks, ice and what it costs per head
How many drinks
The reliable rule is one drink per guest for the first hour, then one per hour after — in short guests × (hours + 1). A 4-hour party for 100 guests is about 500 drinks. Split it to suit the crowd; a common Australian mix is roughly 60% wine, 30% beer and 10% spirits or non-alcoholic, shifting toward beer on a hot afternoon and toward wine and cocktails for an evening event. Always include a generous non-alcoholic option.
How much ice
Allow about 0.5 kg of ice per guest for chilling drinks, so 100 guests need roughly 50 kg. On a hot day, or if you're building an esky bar or serving cocktails over ice, step up to nearer 1 kg per guest. Ice melts fast, so buy it as late as you can and keep it in insulated tubs out of the sun.
Cost per head in Australia
As broad Australian food-only bands, finger food and canapés run about $45 per head, a buffet around $65, and a plated sit-down meal about $90 — before drinks, staff, hire and service. City venues and premium menus push well above these; a backyard party self-catered from the supermarket sits well below. Enter your own cost per canapé or per-head rate for a figure you can budget to.
Frequently asked Frequently asked questions
Where these figures come from
The quantities here are the standard event-planning rules of thumb used by Australian caterers and function venues. They're planning averages you should tune to your own menu, crowd and quotes — not fixed rules.
- Canapés — about 5 pieces per person per hour when canapés are the meal; about 4 per head as pre-dinner nibbles before a sit-down meal.
- Platters — pieces ÷ ~20, the typical catering platter size (confirm your caterer's count).
- Buffet / plated portions — about 1.1 servings per guest to cover second helpings.
- Drinks — guests × (hours + 1): one per guest for the first hour, one per hour after.
- Ice — about 0.5 kg per guest for chilling, up to ~1 kg on a hot day or for cocktails.
- Per-head food bands (AU) — finger food ~$45, buffet ~$65, plated ~$90, food only, before drinks, staff and hire.
- Further guidance — MoneySmart (ASIC) — budgeting and cost guidance.
Last checked: July 2026. This is a planning estimate, not a quote or nutrition advice. Actual quantities and prices vary with your menu, venue, city and the crowd — always confirm the final order and costs with your caterer or supplier.
Understanding your resultSelect the question that matches where you are right now.
The headline number is the amount of food to cater — total canapés for a cocktail party, or portions for a buffet or plated meal — to feed your guests over the event. The breakdown then shows the platters, drinks, ice and the estimated cost and cost per head behind it.
What to do with itUse it to brief a caterer or to shop the party yourself. Round up when you order, weight the menu toward filling items late on, and keep a little spare rather than risk running short.
What it is notIt's not a quote and not a nutrition plan. It doesn't know your exact menu, your venue's platter sizes or your drinks deal — treat it as the starting brief, then confirm the real numbers.
Why style mattersWhether food is the meal or sits beside one changes everything. Cocktail canapés replace dinner at ~5/head/hour; pre-dinner nibbles are ~4/head; buffet and plated plan ~1.1 portions per guest.
Four things move the catering plan the most: guest count, event length, service style, and your per-item or per-head prices.
Guests & hoursCanapés scale with both guests and hours, so a longer party needs proportionally more food. Drinks follow guests × (hours + 1), and ice tracks guest numbers at about 0.5 kg each.
Service styleCocktail, pre-dinner, buffet and plated use different rates entirely. Picking the right style is the single biggest driver of how much food you order.
Your pricesCost per canapé and the per-head buffet or plated rate turn quantities into a budget. Australian food-only bands (~$45 finger, ~$65 buffet, ~$90 plated) are a guide — enter your own quotes for a figure you can plan to.
A few habits keep the catering right and the budget honest.
Round up, don't skimpOrder a little over on food and drink. Leftovers go home; running out mid-party doesn't. The 1.1-portion allowance and the extra drink per guest are there for exactly this.
Match food to the clockServe lighter early and something filling late in a long cocktail event, so guests aren't hungry by the last hour. Time your platters, don't put it all out at once.
Plan drinks and ice togetherMore cold drinks means more ice. On a hot day double the ice allowance and add insulated tubs — warm drinks are the fastest way to a flat party.
Catering is one line in the party budget. Model the wider cost of the event and how it fits your outgoings.
The whole householdSee how a big spend fits your monthly running costs.
Cost of living → Save for the eventPut money aside for the party or celebration.
Savings goal → A buffer for the extrasBuild a rainy-day fund for the unexpected cost.
Emergency fund → Related calculators 🧾Cost of LivingHousehold running costs 👶Baby CostCost of a new arrival 🛟Emergency FundRainy-day buffer 🚗Car Running CostThe other big outgoing 🎯Savings GoalSave for a big spend 📊Net WorthYour full picture 🎂Birthday Party CostThe cost of a birthday party You might also be interested in 🧾Cost of LivingBudget the whole home 👶Baby CostPlan for a baby 🛟Emergency FundBuild a buffer 🚗Car Running CostRun the numbers ⛽Fuel CostTrip & commute cost 📊Net WorthYour full picture Rate this calculatorQuick answers
How many canapés per person? ~5/hr as a meal · ~4 before dinner
For a cocktail event where canapés replace a meal, plan about 5 pieces per person per hour — so a 4-hour party for 100 guests needs around 2,000 pieces. If a sit-down meal follows, canapés are just an appetiser: about 4 pieces per guest total is enough. Order a little over for a hungry crowd or a long event, and mix hot, cold and substantial options so no single item runs out first.
| Meal replacement | ~5/person/hr |
|---|---|
| Before a meal | ~4/person total |
| 100 guests, 4 hr | ≈2,000 pieces |
- Long event Order over
- Mix Hot, cold, filling
How many platters do I need? 100 guests ≈ 100 platters
Divide the total pieces by how many each platter holds (about 20 is typical). For 2,000 canapés at 20 per platter, that's 100 platters across the event — brought out in waves, not all at once. At roughly $3.30 a piece, those 2,000 canapés cost about $6,600 in food. Staggering the platters keeps food fresh and stops guests filling up in the first half-hour.
| Per platter | ~20 pieces |
|---|---|
| 2,000 pieces | 100 platters |
| Food cost | ≈$6,600 |
- Serve in Waves
- Per piece ~$3.30
Per-head catering prices $45 finger · $65 buffet · $90 plated
Australian caterers usually quote per head. Finger-food/canapé packages run about $45 a head for a few hours, buffets around $50–80, and plated sit-down service $70–100+. For 100 guests that's roughly $4,500 finger food, $6,500 buffet, or $9,000 plated. Plated is dearer because it needs more staff and courses; cocktail and buffet stretch further for the same money, which is why they're popular for big guest lists.
| Finger food | ~$45/head |
|---|---|
| Buffet | ~$65/head |
| Plated | ~$90/head |
- 100 guests plated ≈$9,000
- Big lists Cocktail/buffet
How many drinks to provide 100 guests, 4 hr ≈ 500
A standard planning rule is 2 drinks in the first hour, then 1 per person per hour after — so allow guests × (hours + 1). For 100 guests over 4 hours that's about 500 drinks. Split it across beer, wine, sparkling and non-alcoholic to taste (a common mix is roughly 40% beer, 30% wine, 15% spirits, 15% soft), and always over-cater soft drinks and water. Our party drinks calculator turns this into bottles and cans to buy.
| Rule | guests × (hrs + 1) |
|---|---|
| 100 guests, 4 hr | ≈500 drinks |
| Over-cater | Soft + water |
- First hour 2 per person
- After 1/person/hr
How much ice for an event? ~0.5 kg per person +
People forget ice. Budget at least half a kilogram per person just for drinks over a few hours — 50 kg for 100 guests — and more on a hot day or if you're chilling bottles and kegs in tubs, where 1 kg or more per person is safer. Ice melts fast, so it's the one thing worth over-ordering; running out mid-event is a classic party fail. Store it in insulated tubs or an esky, not open buckets.
| Drinks only | ~0.5 kg/person |
|---|---|
| Chilling bottles | ~1 kg/person+ |
| 100 guests | 50–100 kg |
- Hot day Order more
- Store in Insulated tubs
Buffet portions and cost 100 guests ≈ 110 portions
For a buffet or plated meal, cater about 10% over your guest count so the last person through the line isn't short — 110 portions for 100 guests. At a buffet rate around $65 a head that's about $6,500 in food. The 10% buffer covers big eaters and second helpings; go a little higher for a young or very hungry crowd, and make sure there's a substantial vegetarian option that isn't just the side dishes.
| Buffer | +10% over guests |
|---|---|
| 100 guests | 110 portions |
| Buffet cost | ≈$6,500 |
- Big eaters Go higher
- Always A real veg option
Worked examples
| Inputs | Canapés or portions | Note |
|---|---|---|
| 100 guests, 4-hour cocktail party | 2,000 | 2,000 canapés, 100 platters, 500 drinks, 50 kg ice |
| Pre-dinner canapés for 60 | 240 | 240 pieces, 12 platters |
| A plated dinner for 80 | 88 | 88 portions at $90 a head |
FAQFrequently asked questions
How many canapés per person?
For a cocktail event where canapés replace a meal, plan on about 5 pieces per person per hour — so a 4-hour party for 100 guests needs roughly 2,000 canapés. If the canapés are only pre-dinner nibbles before a sit-down meal, about 4 pieces per head across the pre-dinner hour is plenty. Divide the total pieces by the pieces per platter (usually around 20) to see how many platters to order — 2,000 pieces is about 100 platters.
How much does catering cost per head in Australia?
As a rough Australian guide, finger food and canapés run about $45 per head, a buffet around $65 per head, and a plated sit-down meal about $90 per head, before drinks, staff and hire. These are food-only bands and vary widely by city, venue and menu — premium canapés or a grazing table push the finger-food figure well past $45. For a costed plan, enter your own cost per canapé or per-head rate and let the calculator total it.
How many drinks should I provide?
A common planning rule is one drink per guest for the first hour and one per hour after that — in other words guests × (hours + 1). A 4-hour party for 100 guests works out to about 500 drinks. Split it roughly by your crowd: a common mix is around 60% wine, 30% beer and 10% spirits or non-alcoholic, adjusting for the time of day and whether you are also serving food.
How much ice for an event?
Allow about 0.5 kg of ice per guest for chilling drinks — so 100 guests need roughly 50 kg. Add more on a hot day or if you are also using ice in cocktails or an esky-based bar, where 1 kg per guest is safer. Ice melts, so buy it as late as possible and keep it in insulated tubs out of the sun.
How much food for a buffet?
For a buffet or plated meal, plan portions rather than pieces: about 1.1 servings per guest is a safe allowance, so 100 guests means catering for roughly 110 portions. The extra 10% covers bigger appetites and second helpings. Multiply the portions by your per-head food cost — around $65 for a buffet or $90 for a plated meal in Australia — to estimate the food budget. Sources
The sources behind this calculator
- American Association of Feline Practitioners — Feline Life Stage Guidelines — the six feline life stages the cat-age page uses
- Wang et al. 2020, Cell Systems — Quantitative translation of dog-to-human aging by conserved remodeling of the DNA methylome — the 16·ln(age)+31 epigenetic formula on the dog-age page
- Fair Work Ombudsman — sets hospitality award wages — why tipping is optional in Australia
Last checked: July 2026. Where a page states a convention (a tipping custom, a pet life stage), the page names the body it follows.