6 tools
Length & Motion Converters
Convert distance, area, volume, speed, pace, and acceleration between metric, US customary, nautical, and scientific units.
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Free Online Converter Tools
Convert measurements, digital values, engineering quantities, number formats, and currencies with accurate browser-based tools built for clear input and dependable results.
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Browse converters for physical measurements, everyday units, digital values, scientific quantities, and general comparisons.
4 tools
Weight & Everyday Converters
Convert weight, temperature, density, and cooking measurements with clear metric, imperial, and US unit choices.
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Time & Digital Converters
Convert time, file size, data transfer rates, number bases, Roman numerals, and text or binary representations.
Time ConverterData Storage ConverterData Transfer Rate ConverterNumber Base ConverterRoman Numeral Converter
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Science & Engineering Converters
Convert pressure, energy, power, force, torque, and frequency units for technical calculations and engineering references.
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General Converter Tools
Convert angles, fuel economy, percentages, fractions, decimals, and international currencies in focused browser-based tools.
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26 professional working converters
Open a converter to enter a value, choose units or formats, swap directions where supported, and copy the calculated result.
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Length Converter
Convert meters, kilometers, miles, feet, inches, yards, nautical miles, and smaller metric length units instantly.
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Area Converter
Convert square meters, square feet, acres, hectares, square miles, and other surface area units accurately.
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Volume Converter
Convert liters, milliliters, gallons, quarts, cups, fluid ounces, and cubic units in one professional tool.
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Speed Converter
Convert miles per hour, kilometers per hour, meters per second, knots, feet per second, and Mach values.
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Pace Converter
Convert running pace between minutes per kilometer, minutes per mile, speed, and projected race times.
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Acceleration Converter
Convert meters per second squared, feet per second squared, standard gravity, Gal, and other acceleration units.
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Weight and Mass Converter
Convert kilograms, pounds, ounces, grams, stones, metric tons, and US or imperial tons accurately.
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Temperature Converter
Convert Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur temperatures with correct offset formulas.
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Density Converter
Convert kilograms per cubic meter, grams per cubic centimeter, pounds per cubic foot, and other density units.
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Cooking Measurement Converter
Convert teaspoons, tablespoons, cups, fluid ounces, pints, quarts, gallons, milliliters, and liters for recipes.
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Time Converter
Convert seconds, minutes, hours, days, weeks, months, years, milliseconds, and microseconds.
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Data Storage Converter
Convert bits, bytes, KB, MB, GB, TB, KiB, MiB, GiB, and TiB using decimal and binary standards.
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Data Transfer Rate Converter
Convert bps, Kbps, Mbps, Gbps, bytes per second, megabytes per second, and binary transfer rates.
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Number Base Converter
Convert integers between binary, octal, decimal, hexadecimal, and base 36 with input validation.
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Roman Numeral Converter
Convert standard Roman numerals to decimal numbers and decimal integers from 1 to 3,999 into Roman numerals.
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Text to Binary Converter
Convert Unicode text to UTF-8 binary bytes and decode valid 8-bit binary groups back into readable text.
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Pressure Converter
Convert pascals, kilopascals, bar, psi, atmospheres, torr, millimeters of mercury, and inches of mercury.
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Energy Converter
Convert joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, foot-pounds, and electronvolts.
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Power Converter
Convert watts, kilowatts, megawatts, mechanical horsepower, metric horsepower, BTU per hour, and more.
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Force Converter
Convert newtons, kilonewtons, pound-force, kilogram-force, ounce-force, dynes, and poundals.
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Torque Converter
Convert newton-meters, pound-feet, pound-inches, kilogram-force meters, and other torque units.
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Frequency Converter
Convert hertz, kilohertz, megahertz, gigahertz, terahertz, revolutions per minute, and radians per second.
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Angle Converter
Convert degrees, radians, gradians, turns, arcminutes, arcseconds, and milliradians.
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Fuel Economy Converter
Convert miles per gallon, kilometers per liter, liters per 100 kilometers, and miles per liter correctly.
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Percent Decimal Fraction Converter
Convert percentages, decimals, and fractions in either direction with a simplified fraction result.
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Currency Converter
Convert international currencies with current daily reference rates and a manual-rate fallback when live data is unavailable.
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