Voyage Fuel & CO₂

Estimate fuel consumption and CO₂ emissions for a single voyage from engine powers, SFOC, hours underway and at anchor, with a per-fuel Cf split.

VoyageIMOFuel

Loading calculator…

This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

F = \frac{P \cdot h \cdot \text{SFOC}}{10^6}, \quad \text{CO}_2 = F \cdot C_f

Symbol	Meaning	Unit
$F$	Fuel mass consumed on the voyage	t
$P$	Delivered engine power at voyage load	kW
$h$	Hours operated at that load	h
$\text{SFOC}$	Specific fuel consumption at the running load	g / kWh
$C_f$	CO₂ conversion factor for the fuel burned	t CO₂ / t fuel
$10^6$	Grams → tonnes conversion

Source: IMO MEPC.364(79) - Cf conversion factors; IMO MEPC.282(70) - SEEMP guidance on voyage measurement

Estimate a voyage's fuel burn and CO₂ from engine powers, SFOC, hours underway and Cf factors.