Brake Mean Effective Pressure Calculator
Calculate BMEP to understand how efficiently your engine converts cylinder pressure to crankshaft power.
BMEP Results
BMEP (PSI)
29.1
BMEP (Bar)
2.01
BMEP (kPa)
201
Calculated Torque
23.6 lb-ft
(32 Nm)
Specific Power
175.0 HP/L
(2.87 HP/CID)
Displacement
2000 cc
(122.0 CID)
BMEP Rating
Below Average
Engine Classification
Economy or older design
Typical BMEP Ranges
Economy NA
100-130 psi
Performance NA
140-180 psi
Turbo Street
180-250 psi
Turbo Race
250-350+ psi
Understanding BMEP
BMEP represents the average pressure that would need to be applied to the pistons during the power stroke to produce the measured brake power. It normalizes engine output regardless of displacement, making it useful for comparing engine efficiency across different sizes. Higher BMEP indicates better utilization of displacement for power production.