Free Engineering Calculator Suite - 22 Professional Engineering Tools | FreeWWW.com

Engineering Calculator Suite

Professional-grade engineering calculations at your fingertips. Choose from 22 specialized calculators.

Welcome to Engineering Dashboard

Your complete engineering toolkit with 22 free tools. Click any card below to get started.

⚙️ Mechanical Engineering

⚙️

Gear Ratio Calculator

Calculate gear ratios

🔄

Pulley System

Mechanical advantage

⚖️

Lever Calculator

Forces and distances

🌀

Spring Calculator

Hooke's Law

📏

Beam Calculator

Bending and deflection

💪

Stress Calculator

Tensile and shear

Power and Motion

🔧

Torque Calculator

Rotational force

🔃

RPM Calculator

Rotational speed

🐎

Horsepower

HP from torque

📊

Efficiency

System efficiency

🏗️ Structural and Thermal

🎯

Moment of Inertia

Second moment of area

🔥

Heat Transfer

Conduction, convection

💧

Fluid Flow

Pipe flow, Reynolds

🔩

Bolt Torque

Fastener specs

🔌 Electrical Engineering

Ohm's Law

V, I, R, P

🔌

Voltage Divider

Resistive divider

🔋

Capacitor

Capacitance, RC time

🧲

Inductor

Inductance, RL time

🎨

Resistor Color

Decode bands

📡

Wire Gauge

AWG specs

📶 RF Engineering

📶

Antenna Length

Dipole, monopole

📻

Signal Strength

dBm, path loss

Gear Ratio Calculator

Calculate gear ratios, mechanical advantage, and speed relationships.

Pulley System Calculator

Calculate mechanical advantage for pulley systems.

Lever Calculator

Calculate forces and distances using the principle of moments.

Spring Calculator

Calculate spring force, displacement, and constant using F = kx.
N/m
m
N

Beam Calculator

Calculate bending moment and deflection for simply supported beams.

Stress Calculator

Calculate stress from force and area.

Torque Calculator

Calculate torque using T = F x r x sin(angle).

RPM Calculator

Calculate rotational speed and linear velocity.

Horsepower Calculator

Calculate horsepower from torque and RPM.

Efficiency Calculator

Calculate system efficiency from power values.

Moment of Inertia Calculator

Calculate the second moment of area for common cross-sections.

Heat Transfer Calculator

Calculate heat transfer for conduction, convection, and radiation.

Fluid Flow Calculator

Calculate pipe flow parameters including velocity and Reynolds number.

Bolt Torque Calculator

Calculate bolt tightening torque and preload force.

Ohm's Law Calculator

Calculate voltage, current, resistance, and power. Enter any two values.

Voltage Divider Calculator

Calculate output voltage for resistive voltage dividers.

Capacitor Calculator

Calculate capacitance, reactance, and RC time constant.

Inductor Calculator

Calculate inductance, reactance, and RL time constant.

Resistor Color Code Decoder

Decode 4-band and 5-band resistor color codes.

Wire Gauge (AWG) Calculator

Look up wire specifications by AWG gauge.

Antenna Length Calculator

Calculate optimal antenna lengths for various frequencies.

Signal Strength Calculator

Convert between signal strength units and calculate path loss.