Unit Converters

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

Convert Celsius to Fahrenheit with the exact formula F = C x 9/5 + 32. See the result on a dual-scale animated thermometer with real-world context, a step-by-step breakdown, Kelvin and Rankine equivalents and a reference chart.

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.

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.

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

Convert Fahrenheit to Celsius with the exact formula C = (F - 32) x 5/9. See the result on a dual-scale animated thermometer with real-world context, a step-by-step breakdown, Kelvin and Rankine equivalents and a reference chart.

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.

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.

Find your glove size from hand circumference and hand length. Gives a letter size (XS-XXL) and numeric size (6-12), shows how to measure with an animated diagram, and covers men's, women's and unisex charts and fit preference.

Convert head circumference into US, UK, EU and S-M-L hat sizes. Enter a measurement in centimetres or inches, or start from a size you know, and get a full cross-system conversion with a tape-measure diagram and a complete size chart.

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

Convert knots to miles per hour with the exact 1.15078 factor. See your speed on an animated Beaufort scale, get km/h, m/s and ft/s at the same time, and find the matching storm or hurricane category. Works both ways.

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

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

Convert miles per hour to kilometres per hour and back with the exact 1.609344 factor. One needle sweeps a dual-scale speedometer so you read both at once, matched to US and European speed-limit signs, plus m/s, ft/s and knots.

Convert percent (%) to ppm (parts per million) with instant results, a visual scale diagram, and a common % to ppm reference table.

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

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

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.

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.

Convert measurements between scale model ratios such as 1:72, 1:35 and 1:24 and real-world dimensions. Built for aircraft, vehicles, ships, architectural models and miniatures, with a visual comparison and common scale presets.

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.

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.

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

Convert torque between newton-metres, foot-pounds, inch-pounds, kilogram-force centimetres and metres, and dyne-centimetres. Includes real-world references for car wheels, bike pedals and fasteners plus a force-times-radius diagram.

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

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.

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.