ToolForge

Gear Ratio Calculator

Calculate gear ratio, output RPM and torque from gear teeth counts.

How to use

Enter teeth counts and input RPM to calculate drive parameters.

Related Tools

AC Size CalculatorEstimate the cooling capacity (BTU/W/HP) needed for a room. Aspect Ratio CalculatorSimplify any width/height to its aspect ratio (16:9) or compute the missing dimension for a target ratio. Beer Calorie CalculatorEstimate calories in beer by volume, ABV and number of drinks. Video Bitrate CalculatorCalculate video bitrate from file size and duration, or file size from bitrate. Due Date CalculatorCalculate due date, conception date, current pregnancy week and trimester from your last period. Electricity Cost CalculatorEstimate electricity cost from power usage, duration and tariff.

Data is processed entirely in your browser; nothing is uploaded to our servers.