Calculate decimal, binary, octal, and hexadecimal values
Perform decimal, binary, octal, and hexadecimal arithmetic. Convert between number systems. Apply binary logic functions. Use parentheses for operator grouping. Input hexadecimal values using A-F keys.
by William David★ 4.56 ratingsUtilitiesFreeData updated 2026-09-09
Perform calculations with a simple or interface. Solve equations step by step and view detailed explanations. Access calculation history for review or sharing. Generate graphs for visual representation of equations.
Edit schematics, calculate values, and test circuits
Manage components with a database of resistors, capacitors, and diodes. Calculate circuit values using Ohm’s Law and power formulas. Access schematics, datasheets, and component symbols. Convert units and view component ratings.
Calculate mathematical expressions with infix notation, view full equations as they are typed. Customize themes to match personal style. Access via lock screen widgets. Use one-handed keyboard for larger devices.
A and unit/currency with a clean interface. Convert between 500 units across 29 categories and 161 currencies. Customize colors and display selected units. Enter values to instantly convert between units.
Calculate needed for flower beds, shrubbery, or other landscaped areas. Input dimensions in inches, feet, yards, centimeters, or meters. Output includes cubic yards, cubic feet, cubic meters, liters, and bag counts.
Calculate with trigonometric and exponential functions
Store values by pressing "STO" and selecting a memory slot. Perform basic arithmetic and advanced mathematical functions including sine, cosine, logarithm, and exponential.
Calculate electrical values using . Input voltage, current, or resistance to find missing variables. Supports calculations for series and parallel circuits. Includes unit conversion for volts, amps, and ohms.
Solve math problems from basic arithmetic to advanced algebra. Perform exact fraction calculations and store unlimited variables. Create custom functions and graph equations. Use a powerful algebra engine for precise results.
Calculate with scientific precision and enhanced functions
Simulate the HP-45 scientific calculator with photo-realistic visuals and original LED or LCD display. Print calculations, animate keys with sound and feedback, and replicate the calculator's computation times.
Calculate BMI using height and weight. Determine healthy weight range based on height. Choose height units from mm, cm, m, km, inches, feet. Select weight units from kg, lb. Set decimal places for precision.
Perform calculations with decimal points or commas. Correct entries using a backspace key. View calculation history in a display log. Switch between light and dark themes. Receive regular updates with new features.
Perform complex calculations using algebraic expressions and programmable functions. Support unit conversions and attached units. Save and recall variables. Run scripts and access a comprehensive mathematical library. Export results and history.
Convert decimals to and vice versa. Simplify , adjust to fixed numerators or denominators, and round to the nearest value. Users can request additional features through the .
Perform calculations with basic arithmetic operations. Input numbers and equations for quick results. Use a interface with nostalgic design elements. Adjust display settings for different calculation modes.
Add, subtract, multiply, and divide numbers up to five decimal places. Maintain a running total and view a scrollable . Copy or paste numbers by touching and holding the display area.