Mechanics
Belt drive ratio
Calculates ideal ratio from two pulley diameters.
Related calculators
Belt speed
Calculates belt linear speed from pulley diameter and rpm.
Pulley output rpm
Calculates output rpm from input rpm and pulley diameters.
Open belt drive length
Estimates belt length for an open belt drive.
Belt tangential force
Calculates tangential force from power and belt speed.
Belt tension force ratio and power
Calculates tension force ratio, tight-side tension force, and transmitted power from the capstan equation.
Chain drive ratio
Calculates ideal ratio from sprocket tooth counts.