Roofing Squares Calculator Use this calculator to estimate the number of roofing squares needed for your project. A roofing square is equal to 100 square feet. Length of Roof Plane (eave length in feet): Horizontal Run of Roof Plane (from…

Cost of Living Index Comparison Calculator Your Current Annual Salary ($): Current City’s Cost of Living Index (e.g., 100 for national average): Target City’s Cost of Living Index (e.g., 130 for expensive, 80 for cheaper): Calculate Equivalent Salary Calculation Results:…

Accumulated Depreciation Calculator Asset Cost ($): Salvage Value ($): Useful Life (Years): Years Depreciated: Calculate Accumulated Depreciation Results: Annual Depreciation: Accumulated Depreciation: function calculateAccumulatedDepreciation() { var assetCost = parseFloat(document.getElementById(‘assetCost’).value); var salvageValue = parseFloat(document.getElementById(‘salvageValue’).value); var usefulLife = parseFloat(document.getElementById(‘usefulLife’).value); var yearsDepreciated =…

Cost of Living Index Comparison Calculator Your Current Annual Salary ($): Current City’s Cost of Living Index (e.g., 100 for national average): Target City’s Cost of Living Index (e.g., 130 for expensive, 80 for cheaper): Calculate Equivalent Salary Calculation Results:…

Proportion Calculator Use this calculator to find an unknown value in a proportion. Enter three known values, and the calculator will solve for the fourth, assuming the relationship A/B = D First Known Quantity (A): Second Known Quantity (B) -…

Cost of Living Index Comparison Calculator Your Current Annual Salary ($): Current City’s Cost of Living Index (e.g., 100 for national average): Target City’s Cost of Living Index (e.g., 130 for expensive, 80 for cheaper): Calculate Equivalent Salary Calculation Results:…

Rectangle Area and Perimeter Calculator Length: Width: Calculate Enter dimensions and click ‘Calculate’ to see the area and perimeter. function calculateRectangle() { var lengthInput = document.getElementById(“rectangleLength”).value; var widthInput = document.getElementById(“rectangleWidth”).value; var length = parseFloat(lengthInput); var width = parseFloat(widthInput); var resultDiv…

Return on Investment (ROI) Calculator Initial Investment Amount ($): Total Revenue from Investment ($): Total Additional Costs ($): Calculate ROI Understanding Return on Investment (ROI) Return on Investment (ROI) is a fundamental metric used to evaluate the efficiency or profitability…

Marketing ROI Calculator Total Marketing Spend ($): Revenue Generated from Marketing ($): Calculate ROI function calculateMarketingROI() { var marketingSpendInput = document.getElementById(“marketingSpend”).value; var revenueGeneratedInput = document.getElementById(“revenueGenerated”).value; var resultDiv = document.getElementById(“marketingROIResult”); var marketingSpend = parseFloat(marketingSpendInput); var revenueGenerated = parseFloat(revenueGeneratedInput); if (isNaN(marketingSpend) ||…

Roof Slope Degree Calculator Roof Rise (inches): Roof Run (inches): Calculate Roof Slope Enter values and click “Calculate” to see the roof slope. function calculateRoofSlope() { var roofRiseInput = document.getElementById(“roofRise”).value; var roofRunInput = document.getElementById(“roofRun”).value; var resultDiv = document.getElementById(“roofSlopeResult”); var rise…