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Conversion
Unit conversion, physics formulas, chemistry tools, and constants.
8 calculators in Conversion
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Energy Converter
Convert between joules, calories, kWh, and other energy units.
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Length Converter
Convert between meters, feet, inches, miles, and more.
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Paper Weight Converter
Convert between GSM (g/m²) and US paper basis weight systems: Bond, Text, Cover, and Index.
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Parsec to Light Year Converter
Convert between parsecs, light-years, and astronomical units with distance visualization.
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Power Converter
Convert between watts, horsepower, and other power units.
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Pressure Converter
Convert between Pa, kPa, MPa, bar, mbar, atm, psi, mmHg, inHg, and cmH₂O instantly.
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Torque Converter
Convert between N·m, ft·lb, in·lb, kg·cm, and kg·m.
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ESSENTIAL Unit Converter
Convert between length, weight, temperature, and volume units instantly.