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Convert between 1000+ units instantly. Length, weight, temperature, currency, time, area, volume, speed, power, energy, pressure conversions.
Select Conversion Category: Choose from 12+ categories including length, weight, temperature, currency, time, area, volume, speed, power, energy, and pressure.
Choose Units: Select your source unit (From) and target unit (To) from comprehensive dropdown menus.
Enter Value & Get Results: Input the value you want to convert and receive instant, accurate results with 6 decimal place precision.
Distance & Length Conversion: Convert kilometers to miles, feet to meters, inches to cm.
Weight & Mass Conversion: Convert pounds to kg, grams to ounces, stone to kg.
Currency Conversion: Real-time exchange rates for USD, EUR, GBP, CAD, and more.
Temperature Conversion: Convert Celsius to Fahrenheit, Fahrenheit to Celsius, Kelvin.
Volume & Liquid Conversion: Convert liters to gallons, cups to ml, fluid ounces.
Area Conversion: Convert square feet to square meters, acres to hectares.
Speed Conversion: Convert km/h to mph, knots, m/s.
Power & Energy Conversion: Convert watts to HP, joules to calories.
Pressure Conversion: Convert PSI to bar, Pascal, atmosphere.
Time Conversion: Convert seconds, minutes, hours, days, weeks.
Cooking & Baking Conversion: Convert cups to grams, tablespoons to ml.
Scientific Conversion: Binary, decimal, hexadecimal, octal conversions.
Our conversion calculator online is the most comprehensive conversion calculator measurement tool available, handling over 1000+ unit conversions across 12+ categories. Whether you need a conversion calculator for currency, distance measurements, weight conversions, or specialized calculations, our free conversion calculator provides instant, accurate results.
Perfect for international travel. 100 kilometers equals 62.137 miles.
Essential for construction and engineering. Convert building dimensions instantly.
Perfect for fitness tracking and medical applications.
Essential for cooking and baking conversions.
Accurate ingredient conversions for flour, sugar, butter, and more.
Convert liters, milliliters, fluid ounces, cups, pints, and gallons.
Convert PSI, bar, Pascal, Newton-meters, and foot-pounds.
Convert watts, horsepower, joules, calories, and BTUs.
Completely free to use with no signup required. Access unlimited conversions instantly.
Live exchange rates updated every few minutes for accurate currency conversions.
Precise formulas validated against international standards (NIST, BIPM, ISO).