Math & 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-yardMath & Numbers
Convert inches to meters with configurable decimal precision
inches-to-meterMath & Numbers
Convert inches to millimeters with configurable decimal precision
inches-to-mmMath & Numbers
Calculate Q1, Q3, IQR, and optional 1.5 x IQR outlier fences for a numeric dataset
interquartile-range-calculatorMath & Numbers
Convert inches to centimeters with configurable decimal precision
inches-to-cmDate & Time
Convert dates to and from ISO 8601 format
iso-8601-converterMath & Numbers
Calculate indefinite integrals of common functions
integral-calculatorFinance
Calculate future value of investments with compound interest
future-valueFinance
Calculate the effect of inflation on purchasing power and future value of money
inflation-calculator