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Online Unit Converter — Free, fast, and built for precision. Instantly convert length, volume, energy, temperature, and more with zero tracking and full transparency. Designed for engineers, editors, and everyday users who value clarity and control. No fluff—just results.
| Category | Description |
|---|---|
| Length | Convert between metric and imperial units like meters, inches, and miles. Ideal for construction, mapping, and everyday measurements. |
| Area | Calculate land size, floor plans, or surface coverage using units like square meters, acres, and hectares. |
| Volume | Convert liquid and solid volume units including liters, gallons, and cubic meters. Useful for cooking, shipping, and science. |
| Energy | Convert joules, calories, and kilowatt-hours for physics, nutrition, and power consumption. |
| Pressure | Convert pressure units including pascals, bars, psi, and atmospheres. Useful for engineering, weather systems, medical diagnostics, hydraulics and even animal bite force comparisons. |
| Speed | Convert between m/s, km/h, mph, and knots—great for travel, sports, and physics. |
| Temperature | Switch between Celsius, Fahrenheit, and Kelvin for cooking, climate, and science. |
| Time | Convert milliseconds to days, hours to seconds—perfect for scheduling and programming. |
| Data | Translate digital storage units like bytes, kilobytes, and terabytes. |
| Fuel Consumption | Compare mpg, L/100km, and km/L for vehicle efficiency across regions. |
| Angle | Convert degrees, radians, and gradians for geometry, mapping, and robotics. |
| Frequency | Convert Hz, kHz, MHz, and GHz for audio, electronics, and signal processing. |
| Voltage & Current | Convert volts and amps for electronics, power systems, and diagnostics. |
| Torque | Convert Newton-meters, pound-feet, and kilogram-force meters for mechanical applications. |
| Flow Rate | Convert liters per minute, cubic meters per hour, and gallons per minute for plumbing and industrial systems. |
| Mass (Weight) | Convert between metric and imperial weight units including grams, kilograms, pounds, ounces, and stones. Ideal for shipping, nutrition, and animal physiology. |
| Space Distance | Convert astronomical distances with ease—kilometers, astronomical units (AU), light-years, and parsecs. Perfect for stargazers, sci-fi writers, and future Martian settlers. |
| Luminance | Convert light intensity units including lux, lumen, candela, and foot-candles. Ideal for photography, lighting design, plant growth, and accessibility standards. |
| Cooking | Convert kitchen volume units like teaspoons, tablespoons, cups, and liters. Perfect for recipes, nutrition, and international cooking standards. “US and UK kitchen units differ—choose the one that matches your recipe. For example, 1 tbsp (UK) ≈ 1.2 tbsp (US).” |
| Power | Convert vehicle power units like horsepower, kilowatts, and PS. Ideal for comparing engine specs, EV performance, and tuning metrics. |
| Gravity&Acceleration | Convert gravitational acceleration units like meters per second squared, Gal, and g-force. Useful for physics, aerospace, biomechanics, and geophysics. |