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Engineering Tools

Professional engineering calculators for civil, mechanical, electrical, and software engineering.

Convert between metric, imperial, and other unit systems.

Calculate voltage, current, resistance, and power in circuits.

Full-featured scientific calculator with advanced functions.

Decode resistor values from color bands.

Convert between binary, decimal, hexadecimal, and octal.

Calculate sine, cosine, tangent, and inverse trig functions.

Calculate output voltage and resistor ratios for divider circuits.

Find the resistor value needed for an LED and estimate power dissipation.

Compute tau, cutoff frequency, and charging percentage for RC circuits.

Convert between frequency and period for signals and AC systems.