Net Present Value (NPV) Calculator Use this calculator to determine the Net Present Value (NPV) of a project or investment. NPV is a capital budgeting tool that helps evaluate the profitability of a projected investment by comparing the present value…

Proportion Calculator Use this calculator to solve for an unknown value in a proportion. A proportion states that two ratios are equal. For example, if A/B = C/D, you can find any one of the values (A, B, C, or…

Overhead Rate Calculator Total Indirect Costs ($): Total Direct Costs ($): Calculate Overhead Rate function calculateOverheadRate() { var indirectCosts = parseFloat(document.getElementById(‘indirectCosts’).value); var directCosts = parseFloat(document.getElementById(‘directCosts’).value); var resultDiv = document.getElementById(‘overheadRateResult’); if (isNaN(indirectCosts) || isNaN(directCosts)) { resultDiv.innerHTML = ‘Please enter valid numbers…

Mutual Fund Return Calculator Initial Lump Sum Investment: Annual Investment Contribution: Investment Period (Years): Expected Annual Return Rate (%): Calculate Return function calculateMutualFundReturn() { var initialInvestment = parseFloat(document.getElementById(“initialInvestment”).value); var annualContribution = parseFloat(document.getElementById(“annualContribution”).value); var investmentYears = parseFloat(document.getElementById(“investmentYears”).value); var expectedAnnualReturn = parseFloat(document.getElementById(“expectedAnnualReturn”).value);…

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:…

Price Elasticity of Demand Calculator Original Price: New Price: Original Quantity Demanded: New Quantity Demanded: Calculate PED Enter values and click “Calculate PED” to see the result. function calculatePED() { var oldPrice = parseFloat(document.getElementById(‘oldPrice’).value); var newPrice = parseFloat(document.getElementById(‘newPrice’).value); var oldQuantity…

Child’s Adult Height Predictor Estimate your child’s adult height based on the mid-parental height method. This method provides a general estimate and actual height can vary due to many factors. Child’s Gender: Male Female Father’s Height: ft in Mother’s Height:…

Refrigerator Cubic Feet Calculator Enter the internal dimensions of your refrigerator to calculate its total cubic feet capacity. Internal Width (inches): Internal Depth (inches): Internal Height (inches): Calculate Cubic Feet function calculateRefrigeratorCubicFeet() { var width = parseFloat(document.getElementById(“refrigeratorWidth”).value); var depth =…

Chinese Lunar Age Calculator Enter your birth date below to calculate your Chinese Lunar Age using the common simplified method. Birth Year (Gregorian): Birth Month (Gregorian): Birth Day (Gregorian): Calculate Chinese Lunar Age function calculateLunarAge() { var birthYearInput = document.getElementById(“birthYear”).value;…

Net Present Value (NPV) Calculator The Net Present Value (NPV) is a financial metric used to estimate the profitability of a potential investment or project. It calculates the present value of all future cash flows, both positive and negative, over…