Convert length, mass, temperature, area, volume, velocity, computer data storage, pressure, and energy with high precision mathematical standards.
Convert meters, feet, inches, centimeters, kilometers, yards, nautical miles, and millimeters.
Convert kilograms, pounds (lbs), grams, ounces (oz), metric tons, stones, and carats.
Convert square meters, square feet, acres, hectares, square kilometers, and square miles.
Convert liters, US gallons, milliliters, cubic meters, cups, pints, and fluid ounces.
Convert Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine with exact mathematical precision.
Convert km/h, miles per hour (mph), meters per second (m/s), knots, and Mach speed.
Convert milliseconds, seconds, minutes, hours, days, weeks, months, and calendar years.
Convert pascals (Pa), kilopascals (kPa), bars, PSI (pounds per square inch), and standard atmospheres.
Convert watts (W), kilowatts (kW), horsepower (hp), megawatts, and BTU per hour.
Convert newton meters (N·m), foot-pounds (ft-lb), inch-pounds, and kilogram-meters.
Convert volts (V), millivolts (mV), kilovolts (kV), and megavolts electrical potential.
| Conversion Type | Base Unit | Target Unit | Formula / Factor |
|---|---|---|---|
| Length | 1 Inch (in) | Centimeters (cm) | 1 in = 2.54 cm |
| Length | 1 Meter (m) | Feet (ft) | 1 m = 3.28084 ft |
| Weight | 1 Kilogram (kg) | Pounds (lbs) | 1 kg = 2.20462 lbs |
| Temperature | Celsius (°C) | Fahrenheit (°F) | °F = (°C × 1.8) + 32 |
| Area | 1 Acre | Square Feet (sq ft) | 1 Acre = 43,560 sq ft |
| Volume | 1 US Gallon | Liters (L) | 1 Gallon = 3.78541 L |
| Data | 1 Gigabyte (GB) | Megabytes (MB) | 1 GB = 1024 MB (binary) / 1000 MB |
Yes, all unit converters on OperateTools are 100% free with unlimited calculations and zero registration requirements.
Our converters use exact NIST and ISO standard mathematical conversion constants with double-precision floating point calculations.
Yes. All converters provide bidirectional conversion between SI Metric units (meters, kilograms, Celsius) and US/Imperial units (feet, pounds, Fahrenheit).
Yes, this lightweight AMP version is optimized for lightning-fast loading and smooth touch control on smartphones and tablets.