A chef earning €16 per hour actually costs you €24.62 per productive hour. Most restaurant owners underestimate their true labor costs by ignoring employer contributions and non-productive time. The real cost calculation reveals why your margins might be thinner than expected.
What is labor cost per productive hour?
Labor cost per productive hour represents what you actually pay for one hour of genuine kitchen productivity. It's not just the hourly wage—you're accounting for employer contributions plus all those minutes lost to breaks, meetings, and prep tasks.
💡 Example:
A chef earns €16 gross per hour. But the real costs are:
- Gross wage: €16.00
- Employer contributions (25%): €4.00
- Total labor costs: €20.00 per hour
But of every 8-hour workday only 6.5 hours are productive (breaks, changing clothes, meetings).
Cost per productive hour: €20.00 × (8 ÷ 6.5) = €24.62
Calculating employer contributions
Beyond the gross wage, you're paying additional costs that typically range from 20-30% in the Netherlands:
- Employer social insurance contributions: approximately 18-20%
- Pension premium: 3-8% (depending on collective labor agreement)
- Holiday pay: 8% (often already included in gross wage)
- Sick leave and replacement: 2-5%
⚠️ Note:
Employer contributions vary by collective labor agreement. Check your specific percentages with your payroll administrator or accountant.
Determining productivity factor
Here's where it gets tricky—not all work hours equal productive hours. From an 8-hour shift, time gets consumed by:
- Breaks: 30-45 minutes
- Changing clothes and personal care: 10-15 minutes
- Team meetings and briefings: 15-30 minutes
- Cleaning workspace: 15-20 minutes
- Waiting time between orders: 10-30 minutes
Typically, 75-85% of work time translates to productivity. For calculations, 80% works as a solid baseline. And this is a pattern we see repeatedly in restaurant financials—owners who don't account for this productivity gap consistently underestimate their true labor costs.
💡 Example calculation:
Workday of 8 hours with 80% productivity:
- Total work time: 8 hours
- Productive time: 8 × 0.80 = 6.4 hours
- Productivity factor: 8 ÷ 6.4 = 1.25
Your total labor costs per hour × 1.25 = cost per productive hour
Complete calculation with example
Here's how the full calculation works for a chef in an average restaurant:
💡 Complete calculation:
Step 1: Total labor costs per hour
- Gross hourly wage: €17.50
- Employer contributions (25%): €4.38
- Total per hour: €21.88
Step 2: Adjust for productivity
- Productivity: 80% = factor 1.25
- €21.88 × 1.25 = €27.35
Labor cost per productive hour: €27.35
Why this matters for your cost price
If you're calculating labor cost per dish, you need the productive hour rate. Many entrepreneurs underestimate this figure and lose money on labor-intensive dishes.
- Dish requiring 15 minutes prep: €27.35 ÷ 4 = €6.84 labor costs
- Dish requiring 30 minutes: €27.35 ÷ 2 = €13.68 labor costs
- Quick dishes (5 minutes): €27.35 ÷ 12 = €2.28 labor costs
You combine these labor costs with ingredient costs to determine the total cost price of each dish.
⚠️ Note:
During busy periods your productivity can reach 90-95%, while quiet periods might drop to 60-70%. Adjust your calculations seasonally.
Labor cost per position
Different positions carry different hourly costs:
- Kitchen assistant: €20-25 per productive hour
- Chef: €25-30 per productive hour
- Sous chef: €30-40 per productive hour
- Head chef: €40-55 per productive hour
Use the appropriate rate for whoever prepares each dish. A simple salad made by a kitchen assistant costs less in labor than a complex dish crafted by the head chef.
How do you calculate labor cost per productive hour? (step by step)
Calculate total labor costs per hour
Add employer contributions to the gross hourly wage. In the Netherlands this averages 25% of the gross wage. So at €16 gross this becomes €16 + (€16 × 0.25) = €20 total per hour.
Determine the productivity factor
Measure what percentage of work time is actually productive. On average this is 80% due to breaks, meetings and waiting time. The factor then becomes: total hours ÷ productive hours = 8 ÷ 6.4 = 1.25.
Multiply costs by productivity factor
Take your total labor costs per hour and multiply by the productivity factor. €20 × 1.25 = €25 per productive hour. This is what one hour of actual kitchen work costs.
✨ Pro tip
Time your kitchen team's actual productive tasks for 3 consecutive shifts this week. Most owners overestimate productivity by 15-20%, causing them to underprice labor-intensive dishes.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
Should I include holiday pay in labor costs?
Yes, if holiday pay isn't already built into the gross hourly wage. Check your payslip for 'including holiday pay'—if it says that, you're covered. Otherwise, add 8% to the gross wage.
How do I determine my kitchen's actual productivity?
Track for one full week how much time gets spent on actual cooking, cutting, and prep work. Subtract breaks, meetings, and waiting periods from total work hours. The average percentage gives you your productivity baseline.
Does labor cost vary between lunch and dinner shifts?
Absolutely—busy shifts mean higher productivity since there's less waiting around. Lunch might hit 70-80% productivity, while a packed dinner service could reach 85-95%. You can calculate separate rates for each shift type if the difference is significant.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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