Unit Converters

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

• Celsius to Fahrenheit Converter - Convert Celsius to Fahrenheit instantly with the exact formula °F = °C × 9/5 + 32. See your result on a dual-scale animated thermometer, get a real-world temperature context (freezing, room temperature, fever, boiling), a step-by-step breakdown, plus Kelvin and Rankine equivalents and a full °C to °F reference chart. New

• Clothing Size Converter - Convert clothing sizes between US, UK, EU, France, Italy, Japan, Korea, international alpha sizes, and body measurements. Includes women's clothing, men's tops and jackets, jeans waist sizes, visual size rails, and fit notes. New

• Data Transfer Rate Converter - Convert internet & data transfer speeds between bps, Kbps, Mbps, Gbps, Tbps and their byte counterparts (KB/s, MB/s, GB/s). Includes download-time estimator, ISP tier badge, per-hour/day data totals, and clear bits-vs-bytes explanations. 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.

• Fahrenheit to Celsius Converter - Convert Fahrenheit to Celsius instantly with the exact formula °C = (°F - 32) × 5/9. See your result on a dual-scale animated thermometer, get a real-world temperature context (freezing, room temperature, fever, boiling), a step-by-step breakdown, plus Kelvin and Rankine equivalents and a full °F to °C reference chart. 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. Featured

• Fuel Efficiency Converter - Convert fuel economy between MPG (US & Imperial), L/100km, km/L and mi/L instantly. Includes vehicle benchmarks, efficiency rating, tank range projection and CO2 estimate. New

• Glove Size Calculator - Find your glove size from your hand circumference and hand length. This calculator gives your letter size (XS-XXL) and numeric size (6-12), shows exactly where and how to measure with an animated hand diagram, and places you on a visual size gauge. Supports centimeters and inches, men's / women's / unisex charts, a fit preference (snug, regular, or roomy), and glove-type tips for work, winter, cycling, and gardening gloves. New

• Hat Size Converter - Convert your head circumference into US, UK, EU and international (S-M-L) hat sizes instantly. Enter a measurement in centimeters or inches, or start from a size you already know, and get a full cross-system conversion with an animated tape-measure diagram, a size gauge, a fitted-size fraction, and a complete hat size chart. New

• 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.

• Knots to MPH Converter - Convert knots to miles per hour (mph) instantly, with the exact 1 knot = 1.15078 mph factor. See your speed on an animated Beaufort wind-speed scale, get km/h, m/s and ft/s at the same time, and find the matching storm or hurricane category. Works both ways (knots to mph and mph to knots) with a step-by-step breakdown, a live wind animation, and a full knots-to-mph reference chart. New

• 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.

• MPH to KMH / KMH to MPH - Convert miles per hour to kilometers per hour and back, both ways, using the exact 1 mph = 1.609344 km/h factor. A single needle sweeps a dual-scale speedometer so you read mph and km/h at the same time, and your speed is matched to real-world speed-limit road signs (US mph and European km/h) so you instantly know how fast that really is. Also shows m/s, ft/s and knots, a speed context guess, and a step-by-step breakdown. 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.

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

• 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.

• Ring Size Converter - Convert ring sizes instantly between US, UK, EU/ISO, Japan, China, plus diameter and circumference in millimeters. Includes a true-size visual ring, screen calibration, and a string-method measurement helper. 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.

• 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.

• 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.

• 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.

• Torque Converter (Nm, ft-lb, kgf-cm) - Convert torque between Newton-meters (N·m), foot-pounds (ft-lb), inch-pounds (in-lb), kilogram-force centimeters (kgf·cm), kilogram-force meters (kgf·m), and dyne-centimeters. Includes real-world torque references for car wheels, bike pedals, and fasteners, plus a visual force × radius diagram. New

• 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.

• 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.