Solution Dilution Calculator (C1V1 = C2V2) Use this calculator to determine the unknown concentration or volume when diluting a solution. The principle of dilution is based on the formula C1V1 = C2V2, where: C1 = Initial Concentration V1 = Initial…

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:…

Roofing Squares Calculator Roof Length (feet): Roof Width (feet): Roof Pitch: Flat / Low Slope (0/12 – 3/12) 4/12 (approx. 18.4°) 5/12 (approx. 22.6°) 6/12 (approx. 26.6°) 7/12 (approx. 30.3°) 8/12 (approx. 33.7°) 9/12 (approx. 36.9°) 10/12 (approx. 39.8°) 11/12…

Calculator Cat: Feline Contentment Estimator Ever wondered how content your feline friend truly is? Our Calculator Cat tool provides a fun, estimated “Cat Contentment Score” based on key aspects of their daily life. Input details about your cat’s naps, play,…

Whole Number and Fraction Division Calculator Enter a whole number and a fraction to find their quotient. Whole Number: Fraction Numerator: Fraction Denominator: Calculate Division Result: function gcd(a, b) { a = Math.abs(a); b = Math.abs(b); while (b) { var…

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:…

Inherited IRA RMD Calculator Use this calculator to estimate the Required Minimum Distribution (RMD) for an inherited IRA based on common IRS rules. Please note that tax laws are complex and can change. Always consult with a qualified tax professional…

App Download Time & Data Cost Estimator App Size (MB): Your Download Speed (Mbps): Data Plan Cost per GB ($): Enter 0 if you have unlimited data or don’t pay per GB. Calculate Download Enter values and click ‘Calculate Download’…

Euler’s Number (e) Series Calculator Number of Terms (n) for Series Expansion: Enter an integer representing how many terms of the series 1/n! to sum. Calculate ‘e’ Enter the number of terms and click “Calculate ‘e'”. function factorial(k) { if…

AP Exam Score Estimator This calculator helps you estimate your potential AP Exam score (1-5) based on your performance on the Multiple Choice (MCQ) and Free Response Question (FRQ) sections. Please note that actual scoring rubrics and raw score to…