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Circle Area Calculator Radius of the Circle: Enter the radius of the circle (e.g., 5, 10.5). Calculate Area function calculateCircleArea() { var radiusInput = document.getElementById(“circleRadius”).value; var radius = parseFloat(radiusInput); if (isNaN(radius) || radius <= 0) { document.getElementById("circleAreaResult").innerHTML = "Please enter…
Excel Percentage Calculator Use this calculator to quickly determine percentages based on common Excel scenarios, such as a part of a whole or percentage change. Part Value: Whole Value: Calculate Percentage of Total Calculate Percentage Change Old Value: New Value:…
Net Present Value (NPV) Calculator The Net Present Value (NPV) is a fundamental concept in finance and project management, used to evaluate the profitability of a potential investment or project. It helps decision-makers determine whether the expected future cash flows…
Profit Percentage Calculator Total Revenue ($): Total Cost of Goods Sold ($): Calculate Profit Percentage function calculateProfitPercentage() { var totalRevenueInput = document.getElementById(“totalRevenue”); var totalCostOfGoodsSoldInput = document.getElementById(“totalCostOfGoodsSold”); var resultDiv = document.getElementById(“result”); var revenue = parseFloat(totalRevenueInput.value); var cost = parseFloat(totalCostOfGoodsSoldInput.value); if (isNaN(revenue)…
Cylinder Surface Area Calculator Radius (r): Height (h): Calculate Surface Area function calculateCylinderSurfaceArea() { var radiusInput = document.getElementById(‘cylinderRadius’); var heightInput = document.getElementById(‘cylinderHeight’); var resultDiv = document.getElementById(‘cylinderResult’); var radius = parseFloat(radiusInput.value); var height = parseFloat(heightInput.value); if (isNaN(radius) || isNaN(height) || radius…
Standard Error of the Mean (SEM) Calculator Standard Deviation (SD): Sample Size (n): Calculate SEM function calculateSEM() { var standardDeviationInput = document.getElementById(“standardDeviation”).value; var sampleSizeInput = document.getElementById(“sampleSize”).value; var resultDiv = document.getElementById(“semResult”); var sd = parseFloat(standardDeviationInput); var n = parseInt(sampleSizeInput); if (isNaN(sd)…
Roof Pitch Calculator Roof Run (inches): Horizontal distance from wall to ridge. Roof Rise (inches): Vertical distance from wall plate to ridge. Calculate Roof Pitch Results will appear here. function calculateRoofPitch() { var roofRun = parseFloat(document.getElementById(‘roofRun’).value); var roofRise = parseFloat(document.getElementById(‘roofRise’).value);…
How Much Do I Need to Retire Calculator Use this calculator to estimate the total nest egg you’ll need for retirement and how much you might need to save annually to reach that goal. This tool considers inflation, your current…
Return on Equity (ROE) Calculator Net Income ($): Shareholder Equity ($): Calculate ROE function calculateROE() { var netIncome = parseFloat(document.getElementById(‘netIncome’).value); var shareholderEquity = parseFloat(document.getElementById(‘shareholderEquity’).value); var resultDiv = document.getElementById(‘roeResult’); if (isNaN(netIncome) || isNaN(shareholderEquity)) { resultDiv.innerHTML = ‘Please enter valid numbers for…
Significant Figures Calculator Enter a Number: Calculate Significant Figures The number 12.00 has 4 significant figure(s). Understanding Significant Figures Significant figures (often abbreviated as sig figs) are the digits in a number that carry meaning contributing to its precision. They…