Industrial & Trades Calculators
22 tools, each with formula and worked examples
Pressure, torque, energy, electrical, and industrial unit converters.
Unit Converters · 21
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Pressure Converter
Convert between PSI, bar, kPa, MPa, atmospheres, torr, and inches of mercury. Free online pressure unit conver…
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Torque Converter
Convert torque units: Nm to ft-lbs, kgf-cm to Nm, kip-ft to kNm. Free calculator for automotive repair and eng…
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Energy Converter
Convert between joules, calories, kilowatt-hours, BTUs, electronvolts, and more. Free online energy unit conve…
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Power Converter
Convert between watts, horsepower (mechanical, electric, metric), BTU per hour, and more. Free online power un…
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Force Converter
Convert force units: newtons to lbf, kgf to N, kips to kN, dynes to pounds. Free calculator for structural eng…
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Density Converter
Convert between kg/m³, g/cm³, lb/ft³, lb/in³, specific gravity, and more. Free online density unit converter f…
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Angle Converter
Convert between degrees, radians, gradians, arcminutes, arcseconds, milliradians, and turns. Free online calcu…
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Frequency Converter
Convert between hertz, kilohertz, megahertz, gigahertz, RPM, radians per second, and BPM. Free online frequenc…
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Fuel Economy Converter
Convert between miles per gallon (US/UK), liters per 100 km, km per liter, and gallons per 100 miles. Free onl…
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Hardness Converter
Convert between Rockwell (HRC, HRB, HRA), Brinell (HBW), Vickers (HV), and Shore hardness scales per ASTM E140…
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Viscosity Converter
Convert between pascal-seconds, poise, centipoise, stokes, centistokes, and more. Free online viscosity unit c…
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Electrical Converter
Convert between volts, amps, ohms, farads, henries, siemens, and coulombs with metric prefixes. Free, instant,…
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Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly. Free online temperature converter for cook…
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Length Converter
Convert between meters, feet, inches, centimeters, kilometers, miles, nautical miles, and more. Free, instant,…
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Weight Converter
Convert between kilograms, pounds, ounces, stone, metric tonnes, and US tons. Free online weight converter for…
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Volume Converter
Convert between liters, gallons, cups, fluid ounces, cubic meters, cubic feet, and more. Free online calculato…
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Speed Converter
Convert between km/h, mph, knots, meters per second, Mach number, and the speed of light. Free online calculat…
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Area Converter
Convert between square meters, square feet, acres, hectares, square kilometers, square miles, and more. Free, …
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Data Storage Converter
Convert between bytes, kilobytes, megabytes, gigabytes, terabytes, kibibytes, mebibytes, and more. Free, insta…
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Cooking Converter
Convert between cups, tablespoons, teaspoons, milliliters, fluid ounces, pints, quarts, gallons, and water-wei…
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Oven Temperature Converter — °C,
Convert oven temperatures between Celsius, Fahrenheit, and Gas Mark instantly. Includes common oven temperatur…