Countdown Calculator (Days) Start Date: End Date: Calculate Days function calculateCountdown() { var startDateStr = document.getElementById(“startDateInput”).value; var endDateStr = document.getElementById(“endDateInput”).value; if (!startDateStr || !endDateStr) { document.getElementById(“countdownResult”).innerHTML = “Please enter both start and end dates.”; return; } var startDate = new…

Cubic Feet Calculator Length (in feet): Width (in feet): Height (in feet): Calculate Cubic Feet function calculateCubicFeet() { var length = parseFloat(document.getElementById(‘lengthFeet’).value); var width = parseFloat(document.getElementById(‘widthFeet’).value); var height = parseFloat(document.getElementById(‘heightFeet’).value); if (isNaN(length) || isNaN(width) || isNaN(height) || length <= 0…

SEO Content ROI Calculator Estimate the potential return on investment for your SEO content strategy. Cost per Content Piece ($): Number of Content Pieces: Avg. Monthly Organic Traffic per Piece: Average Conversion Rate (%): Average Value per Conversion ($): Content…

Counting Macros Calculator Use this calculator to estimate your daily caloric needs and break them down into recommended grams of protein, carbohydrates, and fats based on your personal details and fitness goals. Gender: Male Female Age (years): Weight (lbs): Height…

CSAT Score Calculator Number of Satisfied Customers: (e.g., customers who rated 4 or 5 out of 5) Total Number of Respondents: (Total number of customers who responded to the survey) Calculate CSAT Score function calculateCSAT() { var satisfiedCustomersInput = document.getElementById(“satisfiedCustomers”).value;…

Credit Card Point Calculator Estimate your potential credit card points earnings based on your spending habits and card rewards structure. Monthly Groceries Spending ($): Groceries Points Multiplier (e.g., 2 for 2x points): Monthly Dining Spending ($): Dining Points Multiplier (e.g.,…

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:…

Confidence Interval for a Proportion Calculator Sample Size (n): Number of Successes (x): Confidence Level: 90% 95% 99% Calculate Confidence Interval function calculateConfidenceInterval() { var sampleSize = parseFloat(document.getElementById(‘sampleSize’).value); var numberOfSuccesses = parseFloat(document.getElementById(‘numberOfSuccesses’).value); var confidenceLevel = parseFloat(document.getElementById(‘confidenceLevel’).value); var resultDiv = document.getElementById(‘result’);…

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:…

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:…