This online conversion calculator collection includes all of the most popular unit converters, including free converters for fractions, decimals, percents, binary, metric weights and measures, standard weights and measures, memory storage, area, distance, volume, and more. Plus, all online conversion calculator pages attempt to explain how each unit is converted manually.
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Area Conversion Calculator
Convert common standard and metric area units (acres, hectares, kilometers, miles, meters, etc.) to their most popular counterparts.Area Conversion CalculatorBinary to Decimal Converter
Convert a base 2 number into its base 10 equivalent.Binary to Decimal ConverterBinary to Hexadecimal Converter
Convert a binary number into its base 16 equivalent.Binary to Hexadecimal ConverterDecimal to Binary Converter
Convert a base 10 number into its base 2 equivalent.Decimal to Binary ConverterDecimal to Fraction Calculator
Convert a non-repeating decimal into a fraction and reduce the resulting fraction into simplest form.Decimal to Fraction CalculatorDecimal to Hexadecimal Converter
Convert a base 10 number into its base 16 equivalent.Decimal to Hexadecimal ConverterDecimal to Octal Converter
Convert a base 10 number into its base 8 equivalent.Decimal to Octal ConverterDecimal to Percent Calculator
Convert a decimal into a percentage and see the steps.Decimal to Percent CalculatorDistance Conversion Calculator
Convert common standard and metric length measurement units to their most popular counterparts.Distance Conversion CalculatorFraction to Decimal Calculator
Reduce a fraction or mixed number into simplest form and convert into a decimal.Fraction to Decimal CalculatorFraction to Percent Calculator
Reduce a fraction into simplest form and convert into a percentage.Fraction to Percent CalculatorHexadecimal to Decimal Converter
Convert a hexadecimal number into its decimal equivalent.Hexadecimal to Decimal ConverterInfix to Postfix Converter
Convert a mathematical infix expression into a postfix expression (also known as reverse polish notation, or RPN) using the stack method.Infix to Postfix ConverterInfix to Prefix Converter
Convert a mathematical infix expression into a prefix expression (also known as Polish notation, or PN) using the stack method.Infix to Prefix ConverterJewelry Weight Converter
Convert between common jeweler's weight units.Jewelry Weight ConverterNumber to Word Converter
Convert a number into three separate word strings: Basic, Currency, and Check Writing.Number to Word ConverterOctal to Decimal Converter
Convert a base 8 number into its base 10 equivalent.Octal to Decimal ConverterPercent to Decimal Calculator
Convert a percentage into a decimal and see the steps.Percent to Decimal CalculatorPostfix to Infix Converter
Converts a postfix expression to an infix expression and shows the steps used to arrive at the result using stack.Postfix to Infix ConverterPostfix to Prefix Converter
Converts a postfix expression to a prefix expression and shows the steps used to arrive at the result using stack.Postfix to Prefix ConverterPrefix to Infix Converter
Converts a prefix expression to an infix expression and shows the steps used to arrive at the result using stack.Prefix to Infix ConverterPrefix to Postfix Converter
Converts a prefix expression to a postfix expression and shows the steps used to arrive at the result using stack.Prefix to Postfix ConverterRecipe Conversion Calculator
Adjust a recipe's ingredients to accommodate a greater or lesser number of servings, or from one baking pan size and shape to another.Recipe Conversion CalculatorRoman Numeral Converter
Convert Roman numerals into Arabic numbers, or an Arabic number to a Roman numeral.Roman Numeral ConverterScientific Notation Converter
Convert between exponential notation and standard notation.Scientific Notation ConverterSpeed Distance Time Calculator
Calculate speed, distance, or time given the two known variables.Speed Distance Time CalculatorTemperature Conversion Calculator
Convert Celsius, Fahrenheit, and Kelvin temperatures to either of the other two.Temperature Conversion CalculatorOhms Volts Watts Amps Converter
Calculate any two of the four electrical values (ohms, volts, watts, or amps) from the other two.Ohms Volts Watts Amps ConverterVolume Conversion Calculator
Convert common standard and metric volume (liquid) units to their most popular counterparts.Volume Conversion CalculatorWeight Conversion Calculator
Convert common standard and metric weight units to their most popular counterparts.Weight Conversion Calculator