If you are considering a catering trailer or food truck, one of the first questions is perfectly natural: "How much can I realistically earn from it?" The internet is full of extremes – from "you'll get rich in a summer" to "it's a grind without profit." The truth is somewhere in the middle.
This article is designed to provide you with a practical framework and a quick calculator, thanks to which you can make a realistic estimate:
- how much you need to sell,
- what margin you need,
- what affects your profit the most,
and how those for whom a catering trailer or food truck actually works calculate their return.
First, let's clarify 3 terms: revenue, gross margin, net profit
To make sure we are calculating the same thing:
- Revenue = number of portions × price per portion
- Gross margin = revenue – ingredients (food cost)
- Net profit = gross margin – all other costs (staff, location, transport, energy, service, marketing…)
For a catering trailer or food truck, it is crucial that you look mainly at the net profit per sales day (or per event), not just at "nice revenue."
Quick calculator: 4 numbers that decide
When you want to estimate the profitability of a catering trailer or food truck, these 4 inputs are enough:
- Average price per portion (e.g., €9)
- Food cost % (e.g., 30%)
- Variable costs per day (location/event fee, transport, energy, temporary staff…)
- Fixed costs (monthly) (leasing/loan, warehouse, accounting, insurance, service…)
Step A: Gross margin per portion
Gross margin per portion = Price per portion × (1 – food cost %)
Example:
- price per portion: €9
- food cost: 30%
→ 9 × 0.70 = €6.30
Step B: Gross margin per day
Gross margin per day = Number of portions × Gross margin per portion
Example:
- 150 portions × €6.30 = €945
Step C: Net profit per day (simplified)
Net profit per day ≈ Gross margin per day – Variable costs per day
Example:
- €945 – €450 = €495
👉 This is the most practical indicator for a catering trailer or food truck: how much you have left after one sales day/event.
Why does the same catering trailer or food truck earn a lot at one time and barely survive at another?
Because profit is most sensitive to 3 things:
- Number of sales days (how many events/operating days you do per month)
- Net profit per day (not revenue!)
- Speed and capacity of service (how many portions you can realistically serve during peak hours)
If you have a great product but can't keep up with service or don't have events, the numbers don't add up. Conversely – even a simple concept can be brutally profitable when it has a good location and system.
Most common mistakes when calculating return on investment (ROI)
1) Calculating ROI from revenue
Return is calculated from profit, not from turnover. Revenue is the "top line," but only what you have left pays off the investment.
2) Forgetting about slow days and seasonality
In reality, there will be:
- rain,
- a slower event,
- staff shortage,
- technical problems,
- seasonal fluctuations.
Therefore, always create 3 scenarios: conservative / realistic / optimistic.
3) Ignoring costs that don't seem large (but add up)
Typically:
- location fee (fixed or % of revenue),
- energy at festivals,
- storage/parking,
- service and consumables,
- marketing,
- accounting and administration.
Quick framework for a "healthy" margin for a catering trailer or food truck
Every concept is different, but generally:
- the higher the food cost, the more you have to push for price or volume,
- the more staff, the more gross margin you need,
- the more expensive the event, the more you need "peak hour output."
Therefore, it is very useful to track:
- food cost %
- gross margin per portion
- net profit per day
Simple example of return on investment (ROI) in 2 scenarios
Imagine that the investment in a catering trailer or food truck is €35,000 excluding VAT.
Scenario A – good events, good system
- net profit per day: €400
- sales days/month: 10
→ monthly profit: €4,000
→ return: 35,000 / 4,000 = 8.75 months
Scenario B – fewer days, lower profit per day
- net profit per day: €250
- sales days/month: 6
→ monthly profit: €1,500
→ return: 35,000 / 1,500 = 23.3 months
The point: return is most affected by the number of sales days and profit per day – not whether you have a "beautiful trailer."
How to connect it all with the concept (and why we do custom concepts)
Concepts (café, bar, street food, ice cream…) differ in:
- what food cost they have,
- what service speed they have,
- what technical complexity they have (electricity, gas, cooling),
- which events they are suitable for.
Therefore, the best procedure is:
- make a calculation (price per portion, food cost, costs per day, number of sales days),
- only then choose the size, equipment, and layout of the catering trailer or food truck.
Disclaimer
- The calculations provided are model-based and indicative. Actual results depend on location, type of events, prices, competition, team, weather, season, and ability to sell.
- ROI is not a promise or a guarantee. It is a framework for how to responsibly estimate return when making a decision.
- When making a decision, we recommend calculating at least with a realistic and conservative scenario.
Gastronova recommendation in conclusion
If you want a catering trailer or food truck to actually earn money, we recommend addressing things in this order:
- Use a quick calculator: price per portion, food cost, costs per day, number of sales days.
- Focus on service capacity: speed of service and workflow often make a bigger difference than "another appliance."
- Choose technology based on the concept, not based on what someone has on Instagram.
- Don't play it too close to the edge: better to have a reserve in electricity/equipment than downtime during peak hours.
And if you want, send us:
- a brief concept (what you are selling),
- target events/locations,
- and an indicative price list of portions,
…and we will help you design a custom catering trailer or food truck so that both numbers and operation make sense.
FAQ
What number is most important for me when making a decision?
For a catering trailer or food truck, the most important is net profit per sales day and how many such days you can consistently do per month. That directly determines your return and cash flow.
How many kW and what connection are "typically" needed for a catering trailer or food truck?
It depends on the appliances, but if you have heating/coffee machine/cooling all at once, in practice 400V with division into phases/circuits is usually the most stable. For simple concepts, 230V may suffice, but you will quickly hit limits.
What food cost is "OK"?
It depends on the concept and price per portion, but the point is to have room for staff, event fees, and profit after ingredients. If the food cost is high, you must have either a higher price or a large sales volume.
Why does someone have brutal revenue but zero profit?
Because revenue doesn't solve costs. A catering trailer or food truck can have a large turnover, but if event fees, wages, energy, and ingredients are high, net profit can evaporate.
Is it better to go for a cheaper setup or higher quality equipment?
If you have a clear concept and know you will be selling often, higher quality equipment and a good workflow will usually increase your service capacity and reliability. When "testing" the market, a more conservative start makes sense – but still with safe technology (especially electricity, water, hygiene).
Can a catering trailer or food truck be a year-round business?
Yes, but you need to account for seasonality and have a plan: indoor events, winter markets, corporate events, collaborations, or another type of sale outside of summer. Year-round operation is more about the event calendar and marketing than the trailer itself.
How quickly can the return on investment (ROI) come out?
ROI can be from a few months to several years – it depends most on the number of sales days and net profit per day. Therefore, we always recommend doing both a conservative and a realistic scenario.
What is the best first step when I want to start?
Find out where you will be selling (events/locations), set your price per portion, calculate your food cost and costs per day – and from that, you will see what concept and equipment make sense for your catering trailer or food truck.
