What unit categories and converters does Unit Converter support?

Unit Converter (unitconverters.net) covers far more than the usual length-and-weight tools. Alongside common categories like length, temperature, area, volume, weight, and time, it lists dozens of specialized converters grouped under engineering, heat, fluids, light, electricity, and magnetism. If your conversion is a standard everyday one, the express version handles it in two fields; if it is a niche engineering or scientific unit, the full-version converters are where you look.

Common converters

These are the categories most visitors need, and they are the ones surfaced directly on the homepage.

The homepage also lists ready-made shortcuts for the most frequent pairings, so you can jump straight to a result instead of picking units from two dropdowns. Examples shown on the site include cm to inches, kg to lbs, Celsius to Fahrenheit, mm to inches, meters to feet, km to miles, grams to ounces, liters to gallons, mph to kph, acres to square feet, radians to degrees, hp to kw, mL to cups, and their reverse directions.

Engineering converters

This group handles mechanical and rotational quantities:

• Velocity - Angular Converter
• Acceleration Converter
• Acceleration - Angular Converter
• Density Converter
• Specific Volume Converter
• Moment of Inertia Converter
• Moment of Force Converter
• Torque Converter

Heat converters

Heat-related conversions are split into distinct tools rather than one catch-all:

• Fuel Efficiency - Mass Converter
• Fuel Efficiency - Volume Converter
• Temperature Interval Converter
• Thermal Expansion Converter
• Thermal Resistance Converter
• Thermal Conductivity Converter
• Specific Heat Capacity Converter
• Heat Density Converter
• Heat Flux Density Converter
• Heat Transfer Coefficient Converter

Note the distinction between Temperature Converter (absolute temperatures) and Temperature Interval Converter (temperature differences) — picking the wrong one gives a wrong answer.

Fluids converters

• Flow Converter
• Flow - Mass Converter
• Flow - Molar Converter
• Mass Flux Density Converter
• Concentration - Molar Converter
• Concentration - Solution Converter
• Viscosity - Dynamic Converter
• Viscosity - Kinematic Converter
• Surface Tension Converter
• Permeability Converter

Light converters

• Luminance Converter
• Luminous Intensity Converter
• Illumination Converter
• Digital Image Resolution Converter
• Frequency Wavelength Converter

Electricity converters

• Charge Converter
• Linear Charge Density Converter
• Surface Charge Density Converter
• Volume Charge Density Converter
• Current Converter
• Linear Current Density Converter
• Surface Current Density Converter
• Electric Field Strength Converter
• Electric Potential Converter
• Electric Resistance Converter
• Electric Resistivity Converter
• Electric Conductance Converter
• Electric Conductivity Converter
• Electrostatic Capacitance
• Inductance Converter

Magnetism converters

The site also lists a magnetism group (the excerpt cuts off at "Magnet"), covering magnetic field and flux quantities.

Express version vs. full versions

The homepage offers two ways in:

• Express Version — a short form with From/To fields and a category selector (Length, Temperature, Area, Volume, Weight, Time). Best when you already know both units and just want the number.
• Full Versions — the complete converter pages listed above, one per category, for units not covered by the express form.

The site also includes a predictive tool that suggests possible conversions as you type, which helps when you are unsure of a unit's exact name.

How to decide if it fits your need

• Everyday conversions (height, weight, temperature, cooking volumes, distances, speed): the express version or the common-conversion shortcuts are enough.
• Engineering, thermal, fluid, optical, electrical, or magnetic units: use the corresponding full-version converter, and check whether you need the absolute or the interval/density variant of the quantity.
• Currency and case conversion are also present, so the site is not limited to physical units.

One practical caveat: because heat, fluids, and electricity each have many near-identical converter names, confirm you have opened the converter matching the exact physical quantity before trusting the output.