A promising restaurant concept failed after eight months because the owner never calculated how many people actually lived within walking distance. Market size determines everything - from daily covers to monthly revenue. You can predict profitability before signing any lease by analyzing your local customer base properly.
Why local market size matters more than you think
Restaurants survive on repeat customers, not one-time visitors. You might think exceptional food guarantees success, but even Michelin-starred concepts fail without sufficient foot traffic.
⚠️ Note:
Restaurants typically draw 70-80% of revenue from customers within 3 km. Distance kills frequency - people won't drive 20 minutes for Tuesday dinner.
Essential data for your calculation
Gather these specific metrics about your target location:
- Population within 1 km: Your core customers, visiting 2-4 times monthly
- Population within 3 km: Occasional diners, 1-2 visits monthly
- Daytime workforce: Lunch rush and after-work crowds
- Tourist/visitor flow: Seasonal but higher spending
- Direct competitors: Restaurants targeting similar demographics
Most kitchen managers discover too late that municipal websites and CBS StatLine provide this data free. Market research firms charge thousands for information that's already public.
Calculate your realistic market share
Now you'll determine how many people will actually become customers:
💡 Example:
Suburban location with mixed residential/commercial:
- Within 1 km: 8,000 residents
- Within 3 km: 25,000 residents
- Daily workforce: 2,000 people
- Current restaurants: 12 establishments
Step 1: Apply realistic conversion rates
Dutch consumers dine out 1.5 times monthly on average. But you won't capture everyone. For casual dining, expect:
- 1 km radius residents: 5% become regulars (400 people)
- 3 km radius residents: 2% visit occasionally (500 people)
- Local workers: 3% try lunch/dinner (60 people)
💡 Monthly visit calculation:
Customer base: 960 potential diners
- Regular customers (400): 2 visits monthly = 800 covers
- Occasional diners (500): 0.5 visits monthly = 250 covers
- Workforce (60): 1.5 visits monthly = 90 covers
Monthly total: 1,140 covers
Transform covers into revenue
Covers don't equal cash. You need these variables:
- Average spend per person: Food, drinks, dessert combined
- Party size: Solo diners vs couples vs groups
- Seasonal fluctuation: December vs February differences
💡 Revenue breakdown:
From 1,140 monthly covers:
- Per-person spend: €28.50
- Average party size: 1.8 people
- Revenue per cover: €28.50 × 1.8 = €51.30
Gross monthly revenue: 1,140 × €51.30 = €58,482
The profitability reality check
Revenue means nothing without understanding costs. Restaurant expenses typically break down as:
- Food costs: 28-35% of revenue
- Labor expenses: 25-35% of revenue
- Rent payments: Maximum 8-12% of revenue
- Operating costs: 15-20% (utilities, marketing, insurance)
Combined expenses: 76-82% of revenue. This leaves 18-24% net margin if everything goes perfectly.
⚠️ Note:
Rent exceeding 12% of projected revenue signals trouble. Either negotiate aggressively or walk away - high rent kills more restaurants than bad food.
Account for competitive pressure
Ignoring existing restaurants is financial suicide. Competitors split your potential market regardless of your concept's uniqueness.
💡 Competition adjustment:
With 12 existing restaurants:
- Market split among 13 total restaurants
- Your realistic share: roughly 7.7%
- Adjusted revenue: €58,482 × 0.77 = €45,031 monthly
Run profitability calculations using this reduced figure. If you still achieve 18-24% margins after competition adjustments, your concept has potential.
Research tools that actually work
Skip expensive consultants. These resources provide accurate data:
- CBS StatLine: Detailed population demographics by postal code
- BAG Viewer: Precise distance measurements and boundary mapping
- Municipal planning departments: Development projects affecting foot traffic
- Local chamber of commerce: Business density and economic trends
Food cost calculators help track actual performance against projections once you're operational.
How do you calculate profitability? (step by step)
Gather local market data
Find out how many people live and work within 1 km and 3 km of your location. Use CBS StatLine and municipal websites for reliable figures.
Calculate your potential customer base
Calculate what percentage of these people realistically become customers. For casual dining: 5% within 1 km, 2% within 3 km as regular customers.
Estimate visit frequency and bill value
Calculate how often your customers come per month and what they spend on average. Multiply this for your monthly revenue.
Subtract competition impact
Divide your potential revenue by the total number of restaurants in your area. This gives a more realistic picture of your market share.
Compare with your cost structure
Check if you still have 18-24% net margin left after deducting all costs (food 30%, labor 30%, rent 10%, other 18%).
✨ Pro tip
Verify your projections by surveying 50 local residents within your first 60 days about dining frequency and spending habits. Most operators find their actual draw radius is 15-20% smaller than calculated.
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
How many potential customers do I need minimum for viability?
You need approximately 800-1,000 regular customers visiting 1-2 times monthly. This typically requires 15,000-20,000 residents within 3 km of your location.
What if my area already has heavy competition?
More than 1 restaurant per 2,000 residents creates oversaturation. Success requires either exceptional differentiation or significantly outperforming existing establishments. Consider alternative concepts like takeout-focused operations.
How do I determine if rent costs are sustainable?
Rent should never exceed 10-12% of projected monthly revenue. With €50,000 expected monthly revenue, maximum rent is €5,000-6,000. Higher percentages make profitability nearly impossible.
Should tourist traffic factor into my calculations?
Only include tourists if they provide consistent, measurable flow year-round. Build your financial model on local residents - tourists are unpredictable and seasonal. Treat tourist revenue as bonus income.
What population density makes a location unviable?
Below 8,000 residents within 3 km struggles unless you have unique advantages like highway visibility or special events. Consider delivery-focused models for sparse areas.
How accurate are these market share percentages?
The 2-5% conversion rates reflect industry averages, but your concept affects results significantly. Premium restaurants might capture 1-2%, while fast-casual concepts could reach 7-8% in ideal conditions.
What seasonal variations should I expect in revenue?
Most restaurants see 20-30% revenue swings between peak and slow seasons. December often peaks while February typically hits bottom. Budget for 3-4 months of below-average performance annually.
📚 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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