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Calculator](https://www.calculatorsoup.com/calculators/technology/aspect-ratio-calculator.php "find aspect ratio, width or height for display and image") [Average Calculator (Mean)](https://www.calculatorsoup.com/calculators/statistics/average.php "Average Calculator (Mean)") [Average Velocity Calculator](https://www.calculatorsoup.com/calculators/physics/velocity_avg.php "Average Velocity Calculator") [Avoirdupois Weight Conversion Calculator](https://www.calculatorsoup.com/calculators/conversions/weightavoirdupois.php "Avoirdupois Weight Conversion Calculator") [Basic Calculator](https://www.calculatorsoup.com/calculators/math/basic.php "Basic Calculator") [Bid-Ask Calculator](https://www.calculatorsoup.com/calculators/financial/bid-ask-calculator.php "Bid-Ask Calculator") [BMI Calculator (Body Mass Index)](https://www.calculatorsoup.com/calculators/health/bmi-calculator.php "Body Mass Index Calculator") [BMI Calculator for 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cubic feet to cubic yards") [Cubic Yards to Cubic Feet \| yd³ to ft³](https://www.calculatorsoup.com/calculators/conversions/cubic-yards-to-cubic-feet.php "volume converter for cubic yards to cubic feet") [Currency Appreciation and Depreciation Calculator](https://www.calculatorsoup.com/calculators/financial/currency-appreciation-depreciation-calculator.php "Currency Appreciation and Depreciation Calculator") [Currency Converter](https://www.calculatorsoup.com/calculators/financial/currency-converter.php "Currency Converter") [Date Days Calculator](https://www.calculatorsoup.com/calculators/time/date-day.php "Date Days Calculator") [Date Difference Calculator](https://www.calculatorsoup.com/calculators/time/date-difference-calculator.php "Date Difference Calculator") [Date ± Calendar Units Calculator](https://www.calculatorsoup.com/calculators/time/date-calendar.php "Date &plusmn; Calendar Units Calculator") [Debt Ratios Calculator](https://www.calculatorsoup.com/calculators/financial/debt-ratios-calculator.php "Financial Ratios for Debt") [Decimal Degrees to Degrees Minutes Seconds](https://www.calculatorsoup.com/calculators/conversions/convert-decimal-degrees-to-degrees-minutes-seconds.php "convert decimal degrees to degrees minutes seconds") [Decimal to Fraction Calculator](https://www.calculatorsoup.com/calculators/math/decimal-to-fraction-calculator.php "Decimal to Fraction Calculator") [Decimal to Percent Calculator](https://www.calculatorsoup.com/calculators/math/decimal-to-percent-calculator.php "Decimal to Percent Calculator") [Decimal to Time Calculator](https://www.calculatorsoup.com/calculators/time/decimal-to-time-calculator.php "Decimal to Time Calculator") [Declining Balance Depreciation Calculator](https://www.calculatorsoup.com/calculators/financial/depreciation-declining-balance.php "Declining Balance Depreciation Calculator") [Deferred Fixed Annuity Calculator](https://www.calculatorsoup.com/calculators/financial/deferred-fixed-annuity-calculator.php "Deferred Fixed Annuity Calculator") [Density (Physics)](https://www.calculatorsoup.com/calculators/physics/density.php "Density Calculator") [Density Conversion Calculator](https://www.calculatorsoup.com/calculators/conversions/density.php "Density Conversion Calculator") [Depreciation Calculator](https://www.calculatorsoup.com/calculators/financial/depreciation-calculator.php "financial calculator for Depreciation") [Depreciation Calculators Index](https://www.calculatorsoup.com/calculators/financial/index-depreciation-calculators.php "Depreciation Calculators") [Descriptive Statistics Calculator](https://www.calculatorsoup.com/calculators/statistics/descriptivestatistics.php "Descriptive Statistics Calculator") [Square Feet to Acres](https://www.calculatorsoup.com/calculators/conversions/square-feet-to-acres.php "convert square feet to acres") [Square Feet to Square Meters](https://www.calculatorsoup.com/calculators/conversions/square-feet-to-square-meters.php "convert square feet to square meters") [Square Meters to Square Feet](https://www.calculatorsoup.com/calculators/conversions/square-meters-to-square-feet.php "convert square meters to square feet") [Statistics Formulas](https://www.calculatorsoup.com/calculators/statistics/statistics-formulas.php "formulas for summary and descriptive statistics") [Diamond Problem Solver](https://www.calculatorsoup.com/calculators/math/diamond-problem-solver.php "Diamond Problem Solver") [Dice Roller](https://www.calculatorsoup.com/calculators/games/diceroll.php "Dice Roller") [Difference of Two Squares Calculator](https://www.calculatorsoup.com/calculators/algebra/difference-of-two-squares-calculator.php "Difference of 2 Squares Calculator") [Digital Stopwatch Timer Calculator](https://www.calculatorsoup.com/calculators/time/stopwatchtimer.php "Digital Stopwatch Timer Calculator") [Digits to Words](https://www.calculatorsoup.com/calculators/conversions/digits-to-words.php "convert strings of digits into words") [Discount Calculator](https://www.calculatorsoup.com/calculators/financial/discount-calculator.php "Calculate the percentage discount given list price and paid price") [Discrete Mathematics Calculators](https://www.calculatorsoup.com/calculators/discretemathematics/ "Discrete Mathematics Calculators") [Displacement as a Function of Average Velocity and Time](https://www.calculatorsoup.com/calculators/physics/displacement-calculator-svt.php "Displacement as a Function of Average Velocity and Time") [Displacement as a Function of Velocity and Time](https://www.calculatorsoup.com/calculators/physics/displacement_v_t.php "Displacement as a function of Velocity and Time") [Displacement as a Function of Velocity, Acceleration and Time](https://www.calculatorsoup.com/calculators/physics/displacement_v_a_t.php "Displacement as a function of Velocity, Acceleration and Time") [Distance Calculator 2D](https://www.calculatorsoup.com/calculators/geometry-plane/distance-two-points.php "2D Distance Calculator") [Distance Calculator 3D](https://www.calculatorsoup.com/calculators/geometry-solids/distance-two-points.php "3D Distance Calculator") [Distance Conversion Calculator](https://www.calculatorsoup.com/calculators/conversions/distance.php "Distance Conversion Calculator") [Dot Product Calculator](https://www.calculatorsoup.com/calculators/algebra/dot-product-calculator.php "dot-product calculator") [Double Declining Balance Depreciation Calculator](https://www.calculatorsoup.com/calculators/financial/depreciation-declining-double.php "Double Declining Balance Depreciation Calculator") [E = mc2 Calculator](https://www.calculatorsoup.com/calculators/physics/emc2.php "calculate energy or mass and convert units") [Effective Interest Rate Calculator](https://www.calculatorsoup.com/calculators/financial/effective-interest-rate-calculator.php "Effective Interest Rate Calculator") [Effective Annual Rate (EAR) Calculator](https://www.calculatorsoup.com/calculators/financial/effective-annual-rate-calculator.php "Effective Annual Rate Calculator") [Elastic Potential Energy Calculator](https://www.calculatorsoup.com/calculators/physics/elastic-potential.php "calculate elastic energy, spring constant and displacement") [EMI Loan Calculator](https://www.calculatorsoup.com/calculators/financial/emi-loan-calculator.php "EMI Loan Calculator") [Energy Conversion Calculator](https://www.calculatorsoup.com/calculators/conversions/energy.php "Energy Conversion Calculator") [Equilateral Triangles Calculator](https://www.calculatorsoup.com/calculators/geometry-plane/triangles-equilateral.php "Equilateral Triangles Calculator") [Equivalent Fractions Calculator](https://www.calculatorsoup.com/calculators/math/fractionsequivalent.php "Equivalent Fractions Calculator") [Equivalent Interest Rate Calculator](https://www.calculatorsoup.com/calculators/financial/equivalent-interest-rate-calculator.php "Equivalent Interest Rate Calculator") [Estimating Sums and Differences of Fractions Calculator](https://www.calculatorsoup.com/calculators/math/fractionsestimating.php "Estimating Sums and Differences of Fractions Calculator") [Euclid's Algorithm Calculator](https://www.calculatorsoup.com/calculators/math/gcf-euclids-algorithm.php "Euclid's Algorithm Calculator") [Even Permutations Calculator](https://www.calculatorsoup.com/calculators/discretemathematics/evenpermutations.php "Even Permutations Calculator") [Expanded Form Calculator](https://www.calculatorsoup.com/calculators/math/expanded-form-calculator.php "Expanded Form Calculator") [Exponents Calculator](https://www.calculatorsoup.com/calculators/algebra/exponent.php "Exponents Calculator") [Large Exponents Calculator](https://www.calculatorsoup.com/calculators/algebra/large-exponent-calculator.php "calculate large exponents") [Factorial Calculator n\!](https://www.calculatorsoup.com/calculators/discretemathematics/factorials.php "Factorial Calculator n!") 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This basic calculator is a web-based tool to do simple arithmetic operations like addition, subtraction, multiplication, and division. It looks and behaves just like a regular hand-held calculator, and it's perfect for quick math calculations right in your web browser. Programmed using Javascript, HTML and CSS, the calculator has buttons for the digits 0–9, basic operators like +, –, ×, ÷, an all clear key, and an equals key. Calculations are processed locally in your browser using JavaScript, so the webpage does not need to interact with a server. The calculator also features a square root key, a percentage key and a plus/minus button to change the sign of your working entry. Once you enter numbers the AC clear key becomes a CE key so you can correct input errors. This web-based calculator is lightweight, mobile-friendly, and you can operate it with a mouse, number pad, keyboard, or touch screen. If you need an online calculator with additional functionality like powers or exponents, pi, memory features, and repeating operations please the CalculatorSoup® [Basic Calculator](https://www.calculatorsoup.com/calculators/math/basic.php "10 digit keypad calculator to add, subtract, divide and multiply") page. Calculator Soup is a comprehensive resource of professionally designed and programmed free online calculators. Here you will find free loan, mortgage, time value of money, math, algebra, trigonometry, fractions, physics, statistics, time & date and conversions calculators. Many of the calculator pages show work or equations that help you understand the calculations. If you don't find what you need, we are always happy to consider requests for new calculators or additional features and information. Contact us for [Calculator Requests and Suggestions](https://www.calculatorsoup.com/suggest-calculator.php).