Calculate total caliper piston area for single, dual, or multi-piston configurations and resulting clamping force.
Input Parameters
Results
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Single Piston Area
in²
--
Total Piston Area
in²
--
Clamping Force
lbs
--
Friction Force (both pads)
lbs
Note: Multi-piston calipers distribute clamping force more evenly across the pad for consistent wear. Differential bore calipers use smaller leading pistons.
Reference
Piston Area = pi x (Diameter / 2)²
Total Area = Single Area x Number of Pistons
Clamping Force = Line Pressure x Total Area
Friction Force = Clamping x mu x 2 (both sides)
1 mm = 0.03937 in