Voyage estimate
Suezmax voyage: Freeport to Trieste
A Suezmax carrying 130,000 tonnes from Freeport to Trieste sails about 6,437 nm laden via the Strait of Gibraltar, about 21.5 days at 12.5 knots. With the ballast leg back and 4 days in port, the round voyage takes about 46.1 days and burns about 1,639 tonnes of fuel.
Round voyage
46.1 d
21.5 d laden
Laden distance
6,437 nm
Shortest route
Fuel (VLSFO)
1,639 t
Round voyage
CO2
5,165 t
2,582 t in EU ETS
Round voyage breakdown
| Leg | Distance | Speed | Days | Fuel |
|---|---|---|---|---|
Laden Freeport → Trieste | 6,437 nm | 12.5 kn | 21.5 | 858 t |
Ballast Trieste → Freeport | 6,437 nm | 13 kn | 20.6 | 681 t |
Port time Loading and discharge | — | — | 4.0 | 100 t |
| Round voyage | 12,874 nm | 46.1 | 1,639 t |
Laden via the Strait of Gibraltar; ballast via the Strait of Gibraltar.
Emissions and EU ETS
The round voyage burns about 1,639 tonnes of VLSFO, emitting about 5,165 tonnes of CO2. One end of the voyage is in the EU ETS area, so half of the emissions at sea count, plus emissions at the EU berth: about 2,582 tonnes of CO2, or the same number of EU allowances.
From 2026 shipping companies surrender allowances for 100% of in-scope emissions. Who pays is for the charter party to say.
Assumptions
- Cargo
- 130,000 t
- Laden speed
- 12.5 kn at 40 t/day
- Ballast speed
- 13 kn at 33 t/day
- Port time
- 4 days at 25 t/day
- Laden draft
- 17 m
- CO2 factor
- 3.151 t per t fuel
Other ship sizes on this route
Questions
How long does a Suezmax take from Freeport to Trieste?
About 21 days 11 hours laden at 12.5 knots over 6,437 nm via the Strait of Gibraltar. The full round voyage, with the ballast leg back and 4 days in port, takes about 46.1 days.
How much fuel does a Suezmax burn on this voyage?
About 1,639 tonnes of VLSFO for the round voyage (858 t laden, 681 t ballast, 100 t in port), emitting about 5,165 tonnes of CO2.
Is this voyage in the EU Emissions Trading System?
Yes. One end is in the EU ETS area, so half the sea emissions count, plus emissions at the EU berth: about 2,582 tonnes of CO2, which means the same number of EU allowances to surrender.