Math & Numbers
Calculate n! for a non-negative integer with exact BigInt output, optional steps, and related values such as trailing zeros
factorial-calculatorMath & Numbers
Calculate natural exponential values e^x, inspect growth factors, and compare them with the inverse e^-x
exponential-calculatorMath & Numbers
Convert Fahrenheit to Celsius with configurable decimal precision
fahrenheit-to-celsiusMath & Numbers
Convert feet to meters with configurable decimal precision
feet-to-meterMath & Numbers
Generate Fibonacci sequence with customizable start numbers, length, and output format. Includes golden ratio analysis and mathematical properties.
fibonacci-generatorDate & Time
Calculate holidays for a specific year and country
holiday-calculatorDate & Time
Convert dates to/from Julian Day Number and Julian calendar
julian-calendarMath & Numbers
Calculate hyperbolic functions (sinh, cosh, tanh)
hyperbolic-calculatorMath & Numbers
Partial-fraction inverse Laplace transform for proper rational functions: root factorization (real + conjugate pairs), exact coefficient system, term-by-term inversion.
inverse-laplace-calculatorMath & Numbers
Compute complex impedance, magnitude |Z| and phase angle φ for series or parallel RLC circuits: X_L=2πfL, X_C=1/(2πfC), |Z|=√(R²+X²), φ=atan2(X,R). Supports any subset of R/L/C and an optional linear frequency sweep.
impedance-calculatorFinance
Project investment growth with initial principal plus monthly contributions and compound interest. Supports compounding frequency, inflation-adjusted real value, and yearly contribution escalation, with a yearly breakdown table and nominal vs real balance curves.
investment-calculatorMath & Numbers
Convert inches to yards with configurable decimal precision
inches-to-yard