Industrial & Trades Calculators — Free Online Tools | TheCalcUniverse

Free Industrial Calculators

Browse our collection of free online industrial calculators. Each tool includes the formula, step-by-step instructions, and educational content to help you understand the math behind the numbers. No signup required — just enter your values and get instant results.

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22 calculators

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Pressure Converter

Industrial & Trades

Convert between PSI, bar, kPa, MPa, atmospheres, torr, and inches of mercury. Free online pressure unit converter with instant results and common conversion tables.

★ 4.939K uses

Torque Converter

Industrial & Trades

Convert between Newton meters, pound-force feet, kilogram-force centimeters, and more. Free online torque unit converter for automotive and engineering use.

★ 4.925K uses

Energy Converter

Industrial & Trades

Convert between joules, calories, kilowatt-hours, BTUs, electronvolts, and more. Free online energy unit converter for physics, nutrition, and engineering.

★ 4.925K uses

Power Converter

Industrial & Trades

Convert between watts, horsepower (mechanical, electric, metric), BTU per hour, and more. Free online power unit converter for engines and appliances.

★ 4.918K uses

Force Converter

Industrial & Trades

Convert between newtons, pound-force, kilogram-force, kiloponds, dynes, and poundals. Free online force unit converter for physics and engineering.

★ 4.918K uses

Density Converter

Industrial & Trades

Convert between kg/mÂ³, g/cmÂ³, lb/ftÂ³, lb/inÂ³, specific gravity, and more. Free online density unit converter for materials science and engineering.

★ 4.932K uses

Angle Converter

Industrial & Trades

Convert between degrees, radians, gradians, arcminutes, arcseconds, milliradians, and turns. Free online angle unit converter for geometry, navigation, and surveying.

★ 4.918K uses

Frequency Converter

Industrial & Trades

Convert between hertz, kilohertz, megahertz, gigahertz, RPM, radians per second, and BPM. Free online frequency unit converter for electronics and audio.

★ 4.946K uses

Fuel Economy Converter

Industrial & Trades

Convert between miles per gallon (US/UK), liters per 100 km, km per liter, and gallons per 100 miles. Free online fuel economy converter for drivers and fleets.

★ 4.917K uses

Hardness Converter

Industrial & Trades

Convert between Rockwell (HRC, HRB, HRA), Brinell (HBW), Vickers (HV), and Shore hardness scales per ASTM E140. Free online hardness converter for metallurgy.

★ 4.939K uses

Viscosity Converter

Industrial & Trades

Convert between pascal-seconds, poise, centipoise, stokes, centistokes, and more. Free online viscosity unit converter for lubricants and fluids.

★ 4.946K uses

Electrical Converter

Industrial & Trades

Convert between volts, amps, ohms, farads, henries, siemens, and coulombs with metric prefixes. Free online electrical unit converter for electronics and engineering.

★ 4.953K uses

Temperature Converter

Industrial & Trades

Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly. Free online temperature converter for cooking, science, weather, and engineering.

★ 4.910K uses

Length Converter

Industrial & Trades

Convert between meters, feet, inches, centimeters, kilometers, miles, nautical miles, and more. Free online length unit converter for construction, travel, and engineering.

★ 4.925K uses

Weight Converter

Industrial & Trades

Convert between kilograms, pounds, ounces, stone, metric tonnes, and US tons. Free online weight converter for fitness, cooking, shipping, and science.

★ 4.925K uses

Volume Converter

Industrial & Trades

Convert between liters, gallons, cups, fluid ounces, cubic meters, cubic feet, and more. Free online volume converter for cooking, automotive, construction, and science.

★ 4.925K uses

Speed Converter

Industrial & Trades

Convert between km/h, mph, knots, meters per second, Mach number, and the speed of light. Free online speed converter for driving, aviation, physics, and weather.

★ 4.918K uses

Area Converter

Industrial & Trades

Convert between square meters, square feet, acres, hectares, square kilometers, square miles, and more. Free online area converter for real estate, construction, and land measurement.

★ 4.911K uses

Data Storage Converter

Industrial & Trades

Convert between bytes, kilobytes, megabytes, gigabytes, terabytes, kibibytes, mebibytes, and more. Free online data storage converter for IT, cloud computing, and file management.

★ 4.917K uses

Cooking Converter

Industrial & Trades

Convert between cups, tablespoons, teaspoons, milliliters, fluid ounces, pints, quarts, gallons, and water-weight equivalents. Free online cooking converter for recipes and baking.

★ 4.932K uses

CBM Calculator

Industrial & Trades

Calculate cubic meters (CBM) and dimensional weight for any shipment. Supports air (1:6000), sea (1:1000), and courier (1:5000) dim factors. Includes container fit estimates for 20ft and 40ft containers.

★ 4.911K uses

Oven Temp

Industrial & Trades

Convert oven temperatures between Celsius, Fahrenheit, and Gas Mark instantly. Includes common oven temperature terms and fan oven adjustments.

★ 4.945K uses

About Industrial & Trades Calculators

Convert between any units of measurement for industrial applications. Our industrial converters cover everything from pressure and torque to viscosity and hardness.

Browse our curated collection of industrial & trades calculators below. Each tool includes detailed formulas, educational content, and real-time results. Use the 22 calculators in this category to make informed decisions, solve problems, and get accurate answers instantly.

22 unit converters covering all major measurement systems

Pressure, torque, energy, and power converters

Length, area, volume, and temperature converters

Viscosity, hardness, and density converters

Frequently Asked Questions

How do I convert PSI to bar?

One bar equals 14.5038 PSI. Divide PSI by 14.504 to get bar, or multiply bar by 14.504 to get PSI. The pressure converter handles this for any value and supports other units like pascals and atmospheres.

What is the difference between kinematic and dynamic viscosity?

Dynamic viscosity measures a fluid's resistance to flow under force (centipoise or pascal-seconds). Kinematic viscosity divides dynamic viscosity by density, giving centistokes or square meters per second. The viscosity converter handles both types.

How do I convert torque between newton-meters and foot-pounds?

One newton-meter equals 0.7376 foot-pounds. Multiply newton-meters by 0.7376 or divide foot-pounds by 0.7376. The torque converter also supports inch-pounds and kilogram-meters for automotive and industrial applications.

How many cubic meters is a standard shipping container?

A 20-foot container holds about 33 cubic meters; a 40-foot container about 67 cubic meters. Usable space varies by container type. The CBM calculator lets you enter your own length, width, and height for any package or container.

What is the formula for converting Celsius to Fahrenheit?

Multiply Celsius by 9/5 (1.8), then add 32. For example, 100°C × 1.8 = 180, plus 32 = 212°F. The temperature converter handles both directions and includes Kelvin and Rankine scales with formulas displayed.