Gear Ratio Calculator
Physics & EngineeringCalculate the gear ratio between a driving and driven gear based on tooth count.
Gear Ratio
The gear ratio between the driving and driven gear, indicating how many rotations the driving gear makes for one rotation of the driven gear.
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Odeh Ahwal0people find this calculator helpful
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Helpful
Saved
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Physics & Engineering calculators
Frequently Asked Questions
What does a gear ratio above 1 mean?
A gear ratio above 1 means the driven gear has more teeth than the driving gear, resulting in a torque increase but a speed reduction, commonly used for mechanical advantage in applications needing more force.
What is the relationship between gear ratio and rotational speed?
Gear ratio and output speed are inversely related — a higher gear ratio number means the driven gear rotates more slowly than the driving gear, while torque is proportionally increased.
Where are gear ratios commonly applied?
Gear ratios are fundamental to vehicle transmissions, bicycle gearing, industrial machinery, and clock mechanisms, anywhere mechanical speed or torque needs to be adjusted between a power source and an output.
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