// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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eng.gear-ratio-speed Calculator
Calculates gear ratio, output speed, torque multiplication, and efficiency from input gear teeth count and output gear teeth count. Spur gears have efficiency of 98–99% per mesh — worm gears are 50–90% efficient but provide large reduction ratios in a compact package.
Inputs
T Drive
Reference formula or conversion factor shown for context.
T Driven
Reference formula or conversion factor shown for context.
Rpm Input
Rate of movement. 1 m/s = 3.6 km/h = 2.237 mph.
Torque Input Nm
Rotational force (N·m) = force × perpendicular lever arm. Engine torque peaks at lower RPM; horsepower peaks higher.
Results
gear ratio GR
The proportional relationship between two quantities.
output speed (rpm)
The computed rate of movement or processing.
output torque (N·m)
Rotational force (N·m) = force × perpendicular lever arm. High torque at low RPM is ideal for hauling; high RPM suits high-speed applications.
power (W, assuming 100% efficiency)
Useful output divided by total input, as a percentage. True 100% efficiency is impossible — losses appear as heat. LEDs: 30–50%. Electric motors: 85–97%. Switching supplies: 85–95%.
GR = T_driven/T_drive = ω_in/ω_out
Sample size or count used in the calculation.
application
Recommended use case or application for this configuration or result.