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Automotive / Brakes

Brake Piston Area Calculator

Calculate hydraulic and effective clamping area for fixed or sliding brake calipers.

Caliper pistons

Caliper area

Effective piston area5,026.548 mm²

7.7912 in² effective clamping area

Total hydraulic area
5,026.548 mm² · 7.7912 in²
Effective piston area
5,026.548 mm² · 7.7912 in²
Hydraulic pistons counted
4
Clamping multiplier
1×

For opposed calipers, count all hydraulically driven pistons on both sides. For sliding calipers, count driven pistons on one side; the body reaction doubles effective clamp force.