Precision tools for
modern engineering.
A suite of high-fidelity calculation and visualization utilities for engineers.
Voltage Divider
Real-time computation of series resistor networks with schematic visualization.
Resistor Codes
IEC 60062 standard decoder for 4 and 5-band resistors with tolerance checks.
Ohm's Law Calculator
Interactively calculate voltage, current, resistance, and power by providing any two known values.
Circle Solver
Bidirectional calculation of radius, diameter, circumference, and area with visual feedback.
Rectangle Solver
Calculate area, perimeter, and diagonal length instantly given side dimensions.
Square Solver
Compute side length, diagonal, and area with a single input.
Binary Converter
Convert between decimal and binary with step-by-step explanations and byte limit visualization.
Median Calculator
Calculate the median of a dataset with elegant visualization and automatic even/odd detection.
Unit Converter
Convert between different units of measurement with instant calculations and comprehensive support for all common units.
Hexadecimal Converter
Convert seamlessly between hexadecimal, binary, decimal, and octal number systems with real-time visualization.
Bitwise Calculator
Perform bitwise operations (AND, OR, XOR, NOT) with visual representation and detailed step-by-step explanations.
Circuit Canvas
Place and arrange resistors and batteries in series or parallel to instantly calculate key circuit values like equivalent resistance and total voltage.
Pythagorean Theorem
Enter any two sides of a right triangle to instantly calculate the third side, all angles, area, and perimeter with animated visualization.
LED Calculator
Calculate LED resistance, pick standard colors with forward voltages, simulate Arduino PWM brightness, and generate ready-to-use code.
Gear Ratio
Calculate gear ratio, output RPM, and torque from tooth count. Animated meshing gears with real-time speed visualization.
Percentage
All-in-one percentage tool — X% of Y, what percent, percentage change, markup and discount. Donut chart and bar visualization.
Matrix Calculator
Add, subtract, multiply matrices, compute determinant, transpose, and inverse. Supports 2×2, 3×3, and 4×4 with heatmap visualization.
LCD Designer
Design HD44780 LCD screens visually. Create custom characters, preview in real-time, and generate ready-to-use Arduino code for 16×2 and 20×4 displays.
Power Station Runtime
Calculate battery depletion time with multiple connected devices. Instantly estimate power station runtime for any device combination.
