About Gear Ratio & Speed Calculator

The Gear Ratio & Speed Calculator is designed for mechanical engineers and students to quickly determine the gear ratio and resulting output speed of a gear train.

Formula Used

Gear Ratio = N₂ / N₁

• N₁ = Driver gear teeth
• N₂ = Driven gear teeth
• Output Speed = Input Speed ÷ Gear Ratio

Applications

• ✅ Machine design
• ✅ Automobile gearboxes
• ✅ Robotics & automation
• ✅ Power transmission systems

FAQs

1. What is a gear ratio?

The gear ratio is the ratio of the number of teeth on the driven gear to the number of teeth on the driver gear.

2. How does gear ratio affect speed?

A higher gear ratio reduces output speed but increases torque, while a lower gear ratio increases speed but reduces torque.

3. Why is gear ratio important?

It determines performance, efficiency, and load capacity in machines and vehicles.

4. Can this calculator be used for multi-stage gear trains?

Yes, by multiplying the ratios of each stage, you can calculate the overall gear ratio.