CALCULATORS

Calculator Tools

Enter values to get instant, copy-ready results.

Gear Ratio Calculator

Calculate gear ratio, output speed, and torque from driver and driven tooth counts (multi-stage)

Spur Gear Center Distance Calculator

Calculate spur gear center distance and key dimensions from the module and two gear tooth counts

GT2 Pulley Center Distance Calculator

Calculate the center distance between GT2 pulleys from the belt length

V-Belt Length & Center Distance Calculator

Calculate the recommended belt designation, actual center distance, wrap angle and belt speed from the belt type and effective pulley diameters

Roller Chain Center Distance & Link Count Calculator

Calculate the number of chain links and actual center distance from sprocket tooth counts and desired center distance

ISO Fit Tolerance Calculator (ISO 286)

Calculate hole and shaft tolerances and fit type from nominal diameter and tolerance class

Stepper Motor Steps/mm Calculator

Calculate steps/mm and travel distance from step angle, microstepping, and drive type

LED Resistor Calculator

Calculate the required resistor value and power consumption from supply voltage, LED forward voltage, and current