Free Maritime Calculators
Practical tools for shipowners, charterers and brokers: TCE, laytime, voyage cost, bunker cost, slow steaming, unit conversion and stowage factors.
TCE calculator
Convert voyage-charter earnings into a daily USD/day rate comparable with time-charter hire.
Laytime & demurrage calculator
Work out demurrage owed or despatch earned from allowed vs actual laytime.
Voyage cost calculator
Estimate total voyage cost from distance, speed, bunker price, port charges and commission.
Bunker cost calculator
Break bunker expenditure into sea and port components from daily consumption rates.
Slow steaming calculator
Quantify fuel savings and extra transit days when reducing speed below design.
Maritime unit converter
Convert MT to LT, nautical miles to km, knots to km/h, barrels to litres and more.
Stowage factors table
Reference stowage factor ranges for 14 bulk commodities in m3 per metric tonne.
Results are indicative only and do not constitute financial, chartering or legal advice. Verify against your charter party terms and current market data.