ENGINEERING TOOLS
Engineering Calculators
Marine engineering calculators for fuel consumption, engine performance, SFOC, heat exchangers, pumps and propulsion systems.
All Engineering Calculators
← Back to CalculatorsFuel Consumption Rate
Calculate daily fuel consumption based on engine load, speed and fuel type
FC (MT/day) = SFOC × MCR × Load% × 24 ÷ 1,000,000
Engine Power Output
Calculate shaft power, indicated power, and brake power from engine parameters
BHP = (BMEP × L × A × N × n) ÷ 60,000 | P = 2π × n × T
SFOC Calculator
Calculate specific fuel oil consumption to evaluate engine efficiency
SFOC (g/kWh) = (Fuel Consumption × 1,000,000) ÷ (Power × Time)
Heat Exchanger Efficiency
Calculate thermal efficiency and heat transfer rate for marine heat exchangers
η = (T_hot_in − T_hot_out) ÷ (T_hot_in − T_cold_in) × 100%
Pump Flow Rate
Calculate pump flow rate, head, and power requirements for marine pumps
Q = A × V | Power = ρ × g × Q × H ÷ η_pump
Motor Current Calculator
Calculate motor running current, starting current and power factor for selection
I = P ÷ (√3 × V × cos φ × η) for 3-phase AC motors
Compressed Air Calculation
Calculate compressed air bottle capacity, consumption and recharge times
Free Air = Bottle Volume × (P_storage − P_min) ÷ P_atm
Main Engine RPM to Speed
Convert main engine RPM to vessel speed using slip and propeller pitch
Speed (kn) = (RPM × Pitch × (1 − slip)) × 60 ÷ 1852
About Engineering Calculators
Marine engineering calculators for Chief Engineers, Second Engineers and watchkeeping engineers. These tools cover routine calculations for engine room operations, fuel management, and machinery maintenance. SFOC and fuel consumption figures should be calibrated against actual engine performance data from the vessel's sea trial results.