BMI and Waist-to-Height Ratio Calculator Weight: kg lbs Height: cm inches Waist Circumference: cm inches Calculate Your Health Metrics: Body Mass Index (BMI): BMI Category: Waist-to-Height Ratio (WHtR): WHtR Category: function calculateMetrics() { var weightInput = document.getElementById(“weightInput”).value; var heightInput =…

Boat Trip Time Calculator Total Trip Distance (Nautical Miles): Average Boat Speed (Knots): Planned Stop Duration (Hours): Calculate Trip Time function calculateBoatTripTime() { var tripDistance = parseFloat(document.getElementById(‘tripDistance’).value); var boatSpeed = parseFloat(document.getElementById(‘boatSpeed’).value); var stopDuration = parseFloat(document.getElementById(‘stopDuration’).value); if (isNaN(tripDistance) || tripDistance <…

Body Mass Index (BMI) Calculator Select Units: Metric (kg, cm) Imperial (lbs, inches) Weight (kg): Height (cm): Calculate BMI function updateUnitLabels() { var metricSelected = document.getElementById(‘metricUnits’).checked; if (metricSelected) { document.getElementById(‘weightLabel’).innerText = ‘Weight (kg):’; document.getElementById(‘weightInput’).placeholder = ‘e.g., 70’; document.getElementById(‘heightLabel’).innerText = ‘Height…

Black Book Trade-In Value Calculator Use this calculator to estimate the wholesale or “black book” trade-in value of your vehicle. This value represents what a dealership might offer you for your car, considering its condition, mileage, features, and the costs…

BMI and Body Fat Percentage Calculator Age: Gender: Male Female Weight: kg lbs Height: cm inches Calculate Enter your details and click ‘Calculate’ to see your results. function calculateBMIAndBodyFat() { var age = parseFloat(document.getElementById(“ageInput”).value); var weight = parseFloat(document.getElementById(“weightInput”).value); var height…

Blood Sugar A1C Calculator Use this calculator to convert between A1C percentage and estimated average glucose (eAG) in both mg/dL and mmol A1C to eAG A1C Percentage (%): Calculate eAG eAG (mg/dL): — eAG (mmol/L): — eAG (mg/dL) to A1C…

Board Foot Calculator Thickness (inches): Width (inches): Length (feet): Number of Pieces: Calculate Board Feet Board Feet Per Piece: 0 Total Board Feet: 0 function calculateBoardFeet() { var thicknessInches = parseFloat(document.getElementById(‘thicknessInches’).value); var widthInches = parseFloat(document.getElementById(‘widthInches’).value); var lengthFeet = parseFloat(document.getElementById(‘lengthFeet’).value); var…

Blood Alcohol Content (BAC) Estimator Number of Standard Drinks Consumed: (e.g., 1 standard drink = 12oz beer, 5oz wine, 1.5oz spirits) Body Weight (lbs): Gender: Male Female Time Since First Drink (hours): Calculate BAC Estimated BAC: Understanding Your Blood Alcohol…

Blinds Size and Cost Estimator Use this calculator to determine the recommended blind dimensions for your windows, whether you’re planning an inside or outside mount, and get an estimated material cost. Window Width (inches): Window Height (inches): Mount Type: Inside…

Bleach in Pool Calculator Use this calculator to determine how much liquid bleach (sodium hypochlorite) you need to add to your pool to reach a desired Free Chlorine (FC) level. Maintaining proper chlorine levels is crucial for sanitizing your pool…