Angle Converter - Convert angles between degrees, radians, gradians, turns, arcminutes, arcseconds, and milliradians instantly with a visual protractor diagram and DMS notation support. New

Energy Converter - Instantly convert between 12+ energy units including Joules, Calories, BTU, kWh, eV, and more. Features real-time conversion, practical examples, and scientific notation support. New

File Size Converter - Convert file sizes between all units (Bits, Bytes, KB, MB, GB, TB, PB) with binary (1024) and decimal (1000) standards. Includes visual size comparisons and instant all-unit conversion.

kg to lbs Converter - Convert kilograms (kg) to pounds (lbs) and vice versa with step-by-step calculations, weight breakdowns in ounces, and real-world weight comparisons. Featured

Lbs to Kg Converter - Convert pounds (lbs) to kilograms (kg) with our easy-to-use weight conversion calculator. Get accurate conversions with visual representations and detailed explanations. Featured

Length Converter - Convert between length units instantly: meters, centimeters, millimeters, kilometers, feet, inches, yards, miles, and nautical miles. Features real-world comparisons and visual scale. New

Percent to PPM Converter - Free online tool to convert between percent (%) and parts per million (ppm) with instant results, visual scale diagram, and common conversion reference table. Featured

Power Converter - Instantly convert power between Watts, Kilowatts, Megawatts, Horsepower (mechanical & metric), BTU/h, Ton of Refrigeration, and Foot-Pound per Second with visual scale comparison. New

PPM to Percent Converter - Convert ppm (parts-per-million) to percentage with visual scale, real-world examples, and detailed explanations. Featured

Pressure Converter - Instantly convert pressure between Pascals (Pa), Kilopascals (kPa), Megapascals (MPa), Bar, Millibar (mbar), PSI, Atmospheres (atm), Torr, and kgf/cm² with visual gauge and quick presets. New

Scale Model Conversion Calculator - Convert measurements between different scale model ratios (1:72, 1:35, 1:24, etc.) and real-world dimensions. Perfect for hobbyists building aircraft, vehicles, ships, architectural models, and miniatures. Features visual scale comparison, common scale presets, and bidirectional conversion. New

Shoe Size Converter - Instantly convert shoe sizes between US, UK, EU, Japan (Mondopoint), Mexico, Brazil, and Korea. Supports men's, women's, and children's sizes with foot measurement guide. New

Speed Converter - Instantly convert speed between Meters per Second, Kilometers per Hour, Miles per Hour, Feet per Second, Knots, Mach Number, and Speed of Light with interactive speedometer visualization and real-time comparisons. New

Temperature Converter - Convert temperature between Celsius (°C), Fahrenheit (°F), Kelvin (K), Rankine (°R), and Réaumur (°Ré) with visual thermometer display, reference points, and detailed conversion formulas.

Ultimate Frequency & Wavelength Converter - Convert between frequency and wavelength across the electromagnetic spectrum with interactive visualization, step-by-step calculations, and support for custom propagation speeds.

Volume Converter - Convert volume instantly between Liters, Milliliters, Cubic Meters, US Gallons, Quarts, Pints, Cups, Fluid Ounces, Tablespoons, Teaspoons, Cubic Feet, and Cubic Inches with visual comparison. New

Weight (Mass) Converter - Instantly convert weight between Kilograms, Grams, Milligrams, Pounds, Ounces, Stones, Metric Tons, Short Tons, Long Tons, Carats, and Micrograms with real-time updates and visual object comparisons. New