Math & Science Tools - Advanced Calculators & Unit Converters

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Math & Formulas

Solve and convert mathematical formulas, algebra, geometry and more.

area, perimeter, volume, Pythagorean theorem, quadratic formula, trigonometry

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Energy Converter

Convert between energy units for physics, engineering and nutrition.

joule (J), kilojoule (kJ), calorie (cal), kilocalorie (kcal), watt-hour (Wh), kilowatt-hour (kWh)

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Power Converter

Convert between power units for electricity, mechanics, and more.

watt (W), kilowatt (kW), megawatt (MW), horsepower (hp), BTU/h

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Pressure Converter

Convert between pressure units for weather, science, engineering.

pascal (Pa), bar, atmosphere (atm), torr, psi, mmHg, inHg

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Force Converter

Convert between force units for physics, engineering, mechanics.

newton (N), kilonewton (kN), dyne, pound-force (lbf), kilogram-force (kgf)

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Torque Converter

Convert between torque units for mechanics, engineering, physics.

newton-meter (Nm), pound-foot (lb·ft), kilogram-meter (kg·m)

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Frequency Converter

Convert between frequency units for radio, electronics, science.

hertz (Hz), kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz)

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Acceleration Converter

Convert between acceleration units for physics, engineering, sports.

meter/second² (m/s²), g-force (g)

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Radiation Converter

Convert between radiation units for physics, medicine, safety.

gray (Gy), sievert (Sv), rem, rad, becquerel (Bq), curie (Ci)

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Magnetism Converter

Convert between magnetism units for physics, engineering, science.

tesla (T), gauss (G), weber (Wb), ampere/meter (A/m)

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Illuminance Converter

Convert between illuminance units for lighting, photography, science.

lux (lx), foot-candle (fc)

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Sound Converter

Convert between sound units for acoustics, audio, engineering.

decibel (dB), phon, sone, bel

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Astronomical Distance

Convert between astronomical distance units for space and science.

astronomical unit (AU), light year (ly), parsec (pc), kilometer (km), mile (mi)

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Viscosity Converter

Convert between dynamic and kinematic viscosity units for fluids.

pascal second (Pa·s), poise (P), centipoise (cP), stokes (St), centistokes (cSt)

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pH Calculator

Convert between pH units for chemistry, biology, and water quality.

pH scale (0-14)

🧮 Math & Science