Voyage estimate
Suezmax voyage: Mongstad to Ulsan
A Suezmax carrying 130,000 tonnes from Mongstad to Ulsan sails about 11,448 nm laden via the Dover Strait, Strait of Gibraltar, Suez Canal, Bab-el-Mandeb and Malacca Strait, about 38.2 days at 12.5 knots. With the ballast leg back and 4 days in port, the round voyage takes about 78.8 days and burns about 2,837 tonnes of fuel.
Round voyage
78.8 d
38.2 d laden
Laden distance
11,448 nm
Shortest route
Fuel (VLSFO)
2,837 t
Round voyage
CO2
8,940 t
4,470 t in EU ETS
Round voyage breakdown
| Leg | Distance | Speed | Days | Fuel |
|---|---|---|---|---|
Laden Mongstad → Ulsan | 11,448 nm | 12.5 kn | 38.2 | 1,526 t |
Ballast Ulsan → Mongstad | 11,448 nm | 13 kn | 36.7 | 1,211 t |
Port time Loading and discharge | — | — | 4.0 | 100 t |
| Round voyage | 22,895 nm | 78.8 | 2,837 t |
Laden via the Dover Strait, Strait of Gibraltar, Suez Canal, Bab-el-Mandeb and Malacca Strait; ballast via the Dover Strait, Strait of Gibraltar, Suez Canal, Bab-el-Mandeb and Malacca Strait.
Emissions and EU ETS
The round voyage burns about 2,837 tonnes of VLSFO, emitting about 8,940 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 4,470 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 Mongstad to Ulsan?
About 38 days 4 hours laden at 12.5 knots over 11,448 nm via the Dover Strait, Strait of Gibraltar, Suez Canal, Bab-el-Mandeb and Malacca Strait. The full round voyage, with the ballast leg back and 4 days in port, takes about 78.8 days.
How much fuel does a Suezmax burn on this voyage?
About 2,837 tonnes of VLSFO for the round voyage (1,526 t laden, 1,211 t ballast, 100 t in port), emitting about 8,940 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 4,470 tonnes of CO2, which means the same number of EU allowances to surrender.