Denver Event Venue Capacity & Revenue Calculator

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.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }

Denver Event Venue Capacity & Revenue Calculator

Estimate your Denver event venue's maximum guest capacity, projected revenue, and net profit based on square footage, layout style, pricing, and local operating costs.

Total Venue Square Footage (sq ft)

Event Layout Style

Theater / Ceremony (10 sq ft/person) Banquet / Seated Dinner (15 sq ft/person) Cocktail Reception (8 sq ft/person) Classroom / Conference (20 sq ft/person) Dance / Concert (6 sq ft/person)

Usable Space Percentage (%)

Accounts for stage, bar, restrooms, circulation (typically 65–80%)

Venue Rental Rate ($ per event)

Denver average: $1,500–$15,000 depending on size and amenities

Food & Beverage Revenue per Guest ($)

Denver average: $65–$150/person; 0 if venue is rental-only

Events per Month

Average Attendance Rate (% of capacity)

Staff Cost per Event ($)

Denver living wage ~$17.29/hr; typical crew 4–10 staff × 6–8 hrs

Monthly Fixed Overhead ($)

Rent, utilities, insurance, permits (Denver avg. $8,000–$25,000/mo)

Miscellaneous Cost per Event ($)

Cleaning, supplies, décor, marketing per event

Calculate Revenue & Capacity

function denCalc() { // --- Inputs --- var sqft = parseFloat(document.getElementById('den-sqft').value); var layout = document.getElementById('den-layout').value; var usablePct = parseFloat(document.getElementById('den-usable').value); var rentalRate = parseFloat(document.getElementById('den-rental-rate').value); var fbPerHead = parseFloat(document.getElementById('den-fb-per-head').value); var eventsMonth = parseFloat(document.getElementById('den-events-month').value); var attendPct = parseFloat(document.getElementById('den-avg-attendance').value); var staffCost = parseFloat(document.getElementById('den-staff-cost').value); var overhead = parseFloat(document.getElementById('den-overhead-monthly').value); var miscCost = parseFloat(document.getElementById('den-misc-cost').value);

// --- Validation --- var errors = []; if (isNaN(sqft) || sqft 95) errors.push("Usable space percentage must be between 40% and 95%."); if (isNaN(rentalRate) || rentalRate 31) errors.push("Events per month must be between 1 and 31."); if (isNaN(attendPct) || attendPct 100) errors.push("Attendance rate must be between 10% and 100%."); if (isNaN(staffCost) || staffCost 0) { resultDiv.style.display = 'block'; resultDiv.innerHTML = 'Please fix the following:' + errors.map(function(e){ return ''; }).join('') + ''; return; }

// --- Layout sq ft per person --- var sqftPerPerson = { theater: 10, banquet: 15, reception: 8, classroom: 20, dance: 6 }; var layoutLabels = { theater: 'Theater / Ceremony', banquet: 'Banquet / Seated Dinner', reception: 'Cocktail Reception', classroom: 'Classroom / Conference', dance: 'Dance / Concert' }; var spacePerPerson = sqftPerPerson[layout];

// --- Step 1: Usable Square Footage --- // Usable SF = Total SF × (Usable% / 100) var usableSqft = sqft * (usablePct / 100);

// --- Step 2: Maximum Capacity --- // Max Capacity = floor(Usable SF / sq ft per person) var maxCapacity = Math.floor(usableSqft / spacePerPerson);

// Denver fire code: also cap at 1 person per 7 sq ft of gross area (occupancy load) var fireCodeCap = Math.floor(sqft / 7); var effectiveCapacity = Math.min(maxCapacity, fireCodeCap);

// --- Step 3: Average Guests per Event --- // Avg Guests = Effective Capacity × (Attendance% / 100) var avgGuests = Math.round(effectiveCapacity * (attendPct / 100));

// --- Step 4: Revenue per Event --- // Revenue/Event = Rental Rate + (Avg Guests × F&B per Head) var revenuePerEvent = rentalRate + (avgGuests * fbPerHead);

// --- Step 5: Monthly Gross Revenue --- // Monthly Gross = Revenue/Event × Events/Month var monthlyGross = revenuePerEvent * eventsMonth;

// --- Step 6: Monthly Total Costs --- // Variable Costs/Month = (Staff Cost + Misc Cost) × Events/Month // Total Monthly Cost = Variable Costs/Month + Monthly Fixed Overhead var variableCostPerEvent = staffCost + miscCost; var monthlyVariableCosts = variableCostPerEvent * eventsMonth; var monthlyTotalCosts = monthlyVariableCosts + overhead;

// --- Step 7: Monthly Net Profit --- // Net Profit = Monthly Gross Revenue − Monthly Total Costs var monthlyNetProfit = monthlyGross - monthlyTotalCosts;

// --- Step 8: Profit Margin --- // Profit Margin (%) = (Net Profit / Monthly Gross Revenue) × 100 var profitMargin = (monthlyGross > 0) ? (monthlyNetProfit / monthlyGross) * 100 : 0;

// --- Step 9: Annual Projections --- var annualGross = monthlyGross * 12; var annualCosts = monthlyTotalCosts * 12; var annualProfit = monthlyNetProfit * 12;

// --- Step 10: Revenue per Sq Ft (annual) --- // Rev/SqFt = Annual Gross Revenue / Total SqFt var revPerSqft = annualGross / sqft;

// --- Step 11: Break-Even Events per Month --- // Break-Even Events = Fixed Overhead / (Revenue/Event − Variable Cost/Event) var contributionMargin = revenuePerEvent - variableCostPerEvent; var breakEvenEvents = (contributionMargin > 0) ? (overhead / contributionMargin) : Infinity;

// --- Formatting helpers --- function fmt(n) { return '$' + n.toLocaleString('en-US', {minimumFractionDigits:0, maximumFractionDigits:0}); } function fmtD(n) { return '$' + n.toLocaleString('en-US', {minimumFractionDigits:2, maximumFractionDigits:2}); } function fmtN(n) { return n.toLocaleString('en-US', {minimumFractionDigits:0, maximumFractionDigits:0}); } function pct(n) { return n.toFixed(1) + '%'; }

var profitColor = monthlyNetProfit >= 0 ? '#2e7d32' : '#c62828';
var marginColor = profitMargin >= 20 ? '#2e7d32' : (profitMargin >= 0 ? '#e65100' : '#c62828');
var beText = isFinite(breakEvenEvents)
? breakEvenEvents.toFixed(1) + ' events/month'
'N/A (contribution margin ≤ $0)';

resultDiv.style.display = 'block'; resultDiv.innerHTML = '### 📊 Denver Venue Capacity & Revenue Results ' +

'#### 🏛️ Capacity Analysis ' + '' + 'Total Venue Square Footage' + fmtN(sqft) + ' sq ft' + 'Usable Square Footage (' + usablePct + '%)' + fmtN(Math.round(usableSqft)) + ' sq ft' + 'Layout Style' + layoutLabels[layout] + ' (' + spacePerPerson + ' sq ft/person)' + 'Layout-Based Max Capacity' + fmtN(maxCapacity) + ' guests' + 'Denver Fire Code Cap (1/7 sq ft gross)' + fmtN(fireCodeCap) + ' guests' + 'Effective Maximum Capacity' + fmtN(effectiveCapacity) + ' guests' + 'Average Guests per Event (' + attendPct + '% attendance)' + fmtN(avgGuests) + ' guests' + '' +

'#### 💰 Per-Event Economics ' + '' + 'Venue Rental Revenue' + fmt(rentalRate) + '' + 'F&B Revenue (' + fmtN(avgGuests) + ' guests × ' + fmtD(fbPerHead) + ')' + fmt(Math.round(avgGuests * fbPerHead)) + '' + 'Total Revenue per Event' + fmt(Math.round(revenuePerEvent)) + '' + 'Staff Cost per Event(' + fmt(staffCost) + ')' + 'Miscellaneous Cost per Event(' + fmt(miscCost) + ')' + 'Variable Cost per Event(' + fmt(variableCostPerEvent) + ')' + 'Contribution Margin per Event' + fmt(Math.round(contributionMargin)) + '' + '' +

'#### 📅 Monthly Projections (' + fmtN(eventsMonth) + ' events) ' + '' + 'Monthly Gross Revenue' + fmt(Math.round(monthlyGross)) + '' + 'Monthly Variable Costs(' + fmt(Math.round(monthlyVariableCosts)) + ')' + 'Monthly Fixed Overhead(' + fmt(overhead) + ')' + 'Monthly Total Costs(' + fmt(Math.round(monthlyTotalCosts)) + ')' + 'Monthly Net Profit' + fmt(Math.round(monthlyNetProfit)) + '' + 'Profit Margin' + pct(profitMargin) + '' + '' +

'#### 📆 Annual Projections ' + '' + 'Annual Gross Revenue' + fmt(Math.round(annualGross)) + '' + 'Annual Total Costs(' + fmt(Math.round(annualCosts)) + ')' + 'Annual Net Profit' + fmt(Math.round(annualProfit)) + '' + 'Annual Revenue per Sq Ft' + fmtD(revPerSqft) + '/sq ft' + '' +

'#### ⚖️ Break-Even Analysis ' + '' + 'Break-Even Events per Month' + beText + '' + 'Current Events vs. Break-Even' + (isFinite(breakEvenEvents) ? (eventsMonth >= breakEvenEvents ? '✅ Above break-even' : '⚠️ Below break-even') : '⚠️ Review pricing') + '' + ''; }

#### Formulas Used

Usable Square Footage = Total SF × (Usable% ÷ 100)

Layout Capacity = floor(Usable SF ÷ sq ft per person) — Theater: 10, Banquet: 15, Reception: 8, Classroom: 20, Dance: 6

Fire Code Capacity = floor(Total SF ÷ 7) — Denver/IBC occupancy load standard

Effective Capacity = min(Layout Capacity, Fire Code Capacity)

Average Guests = Effective Capacity × (Attendance% ÷ 100)

Revenue per Event = Rental Rate + (Avg Guests × F&B per Head)

Monthly Gross Revenue = Revenue per Event × Events per Month

Monthly Net Profit = Monthly Gross Revenue − (Variable Costs × Events) − Fixed Overhead

Profit Margin = (Net Profit ÷ Gross Revenue) × 100

Break-Even Events = Fixed Overhead ÷ (Revenue per Event − Variable Cost per Event)

Annual Revenue per Sq Ft = Annual Gross Revenue ÷ Total Square Footage

#### Assumptions & References

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