China Import Duty & Tax Calculator Estimate the customs duty, consumption tax, and VAT for goods imported into China. This calculator helps you understand the potential tax burden based on your product’s value, shipping, insurance, and applicable tax rates. Product…

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CFM Duct Calculator Duct Shape: Rectangular Round Duct Width (inches): Duct Height (inches): Duct Diameter (inches): Air Velocity (Feet per Minute – FPM): Calculate CFM function toggleDuctInputs() { var ductShape = document.getElementById(“ductShape”).value; var rectangularDiv = document.getElementById(“rectangularInputs”); var roundDiv = document.getElementById(“roundInputs”);…

Cardiac Risk Score Calculator Estimate your potential risk for cardiovascular events based on key health factors. This calculator provides a simplified risk score for informational purposes only and is not a substitute for professional medical advice. Age (years): Sex: Male…

Carnivore Diet Macro Calculator Estimate your daily macronutrient needs (protein and fat) for a carnivore diet based on your personal metrics and goals. Weight (lbs): Height (inches): Age (years): Gender: Male Female Activity Level: Sedentary (little or no exercise) Lightly…

Cholesterol Ratio Calculator Total Cholesterol (mg/dL): HDL Cholesterol (mg/dL): Calculate Ratio Your Cholesterol Ratio: function calculateCholesterolRatio() { var totalCholesterol = parseFloat(document.getElementById(‘totalCholesterol’).value); var hdlCholesterol = parseFloat(document.getElementById(‘hdlCholesterol’).value); var cholesterolRatioResult = document.getElementById(‘cholesterolRatioResult’); var ratioInterpretation = document.getElementById(‘ratioInterpretation’); // Input validation if (isNaN(totalCholesterol) || isNaN(hdlCholesterol)…

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:…

Stoichiometry Calculator: Water Synthesis (2 H₂ + O₂ → 2 H₂O) This calculator determines the limiting reactant, theoretical yield of water, and the mass of excess reactant remaining for the synthesis of water from hydrogen and oxygen, based on the…

Car Value Estimate Calculator Estimate the current market value of your car based on key factors like original price, age, mileage, and condition. Original MSRP ($): Model Year: Current Mileage (miles): Condition: Excellent Good Fair Poor Has Accident History? Calculate…

Cava Macros Calculator Estimate the macronutrient breakdown of your custom Cava bowl or pita. Select Your Base: — Select Base — White Rice (1 serving) Brown Rice (1 serving) SuperGreens (1 serving) Select Your Protein: — Select Protein — Grilled…