Calculate standard deviation, probable error, and error of the mean for surveying and civil measurements. Switch between imperial and metric units. Perform calculations for series of observations and single or combined accidental errors.
Convert to kilometers and kilometers to with instant, precise calculations. Save conversion history and switch between dark and light themes. Works offline and features a clean, user-friendly interface.
Perform arithmetic and scientific calculations with dedicated calculators. Convert units between different measurement systems. Access multiple converters for currency, temperature, and more.
Perform complex calculations, convert units, and manage dates. Calculate financial figures, solve equations, and track progress. Save frequently used formulas and access a scientific . Share results via email or copy to clipboard.
Calculate power levels in dBm and watt with addition and subtraction. Convert between dBm, dBW, mW, W, mV, V, dBV, dBµV, and dBu. Adjust for impedance. Perform voltage calculations for correlated and uncorrelated values.
Convert between bits, bytes, and larger data units like kilobits, megabytes, terabytes, and more. Enter a value and unit to automatically convert to all other units. Choose between K = 1024 or K = 1000 for different calculation types.
Perform calculations with arithmetic, SI and non-SI units, and physical constants. Support natural and SI units for scientific and everyday use. Evaluate expressions with functions like exp, arctan, and cosh.