Engineering & Electronics All Tools

Circuit, mechanical, fluid, thermal and engineering geometry learning calculation.

Engineering & Electronics27

Circuit, mechanical, fluid, thermal and engineering geometry learning calculation.

Resistor Color Code Calculator
The resistance value, tolerance and range are calculated according to the four-color ring or five-color ring.
Ohm's Law Calculator
Input two independent electrical parameters to calculate voltage, current, resistance and power.
Series and Parallel Resistor Calculator
Calculate the equivalent resistance of all positive resistors in series or all in parallel.
Series and Parallel Capacitor Calculator
Calculate the equivalent capacitance of capacitors in series or parallel and their stored energy at a given voltage.
RC and RL Transient Response Calculator
Find the time constant and normalized response of an ideal first-order RC or RL circuit.
LC Resonant Frequency Calculator
Calculate an ideal LC resonant frequency or solve for the required inductance or capacitance.
LED Series Resistor Calculator
Estimate a series LED resistor, its dissipation and a rounded-up E12 reference resistance for low-voltage DC.
Loaded Voltage Divider Calculator
Compare unloaded and loaded divider voltages and calculate the dissipation in each resistor.
Decibel and Gain Ratio Converter
Convert between decibels and linear power or amplitude ratios using the correct logarithmic factor.
AC Power and Power Factor Calculator
Calculate real, reactive and apparent power for sinusoidal single-phase or balanced three-phase circuits.
Power Factor Correction Calculator
Estimate capacitive reactive power compensation from real power and a target power factor.
Multistage Gear Train Calculator
Calculate stage ratios, output speed, torque and rotation direction for a multistage external gear train.
Two-Pulley Belt Length Calculator
Calculate the ideal length, wrap angles and speed ratio for an open or crossed two-pulley belt.
RPM and Peripheral Speed Calculator
Convert between rotational speed and peripheral linear speed and calculate angular velocity.
Bolt Circle Coordinate Calculator
Generate coordinates for equally spaced holes on a specified bolt circle.
Spring Force and Energy Calculator
Calculate restoring force and elastic potential energy from spring stiffness and displacement.
Projectile Motion and Free Fall Calculator
Calculate flight time, horizontal distance, maximum height and a trajectory table for ideal projectile motion.
Ideal Gas Law Calculator
Solve for one unknown among absolute pressure, volume, amount of substance and absolute temperature.
Solution Dilution Calculator
Calculate stock solution and added solvent volumes using concentrations expressed in the same units.
Linear Thermal Expansion Calculator
Calculate length change from initial length, thermal expansion coefficient and temperature change.
Sensible Heat and Heating Time Calculator
Calculate sensible heat and estimate heating time from input power and efficiency.
Density, Mass and Volume Calculator
Solve for density, mass or volume when the other two quantities are known.
Pipe Flow Rate and Velocity Calculator
Calculate volumetric flow from pipe internal diameter and mean velocity, or solve for velocity.
Pipe Reynolds Number Calculator
Calculate pipe Reynolds number from density, mean velocity, internal diameter and dynamic viscosity.
Hydrostatic Pressure Calculator
Calculate pressure increase, absolute pressure and force on a horizontal plane at a given liquid depth.
Horizontal Cylinder Tank Volume Calculator
Calculate liquid volume and remaining space in a horizontal cylindrical tank from diameter, length and liquid height.
Second Moment of Area Calculator
Calculate area, centroidal second moments of area and section moduli for rectangles, solid circles and annuli.