Calculator provides basic and scientific calculation functions. Users can access a history of past calculations for review or reuse. It includes a live currency converter for exchange rate checks.
by Impala Studios B.V.★ 4.6358,634 ratingsUtilitiesFreeData updated 2026-09-08
Calculate pH, pOH, [H⁺], or [OH⁻] from any one value. Input concentration or ion activity to solve for missing variables. Automatically handles strong and weak acids/bases using provided Ka or Kb values.
Generate sound waves with sine, square, sawtooth, or triangle waveforms. Adjust between 1Hz and 22000Hz. Play single oscillator tones. Test speakers or tune instruments using generated frequencies.
The app offers scientific notation and engineering multipliers for calculations. It includes calculation history, user-defined constants, interactive variables, and a variety of mathematical functions.
Convert units across 14 categories including length, weight, and temperature. Switch between metric, imperial, and Chinese traditional systems. Customize display formats and save frequently used conversions.
Perform basic calculations including addition, subtraction, multiplication, and division. Calculate percentages and use nested expressions. View full equations and intermediate results. Access a history of 25 recent calculations.