Voyage estimate
Aframax voyage: Sture to Ulsan
A Aframax carrying 80,000 tonnes from Sture to Ulsan sails about 11,438 nm laden via the Dover Strait, Strait of Gibraltar, Suez Canal, Bab-el-Mandeb and Malacca Strait, about 38.1 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 2,328 tonnes of fuel.
Round voyage
78.8 d
38.1 d laden
Laden distance
11,438 nm
Shortest route
Fuel (VLSFO)
2,328 t
Round voyage
CO2
7,336 t
3,668 t in EU ETS
Round voyage breakdown
| Leg | Distance | Speed | Days | Fuel |
|---|---|---|---|---|
Laden Sture → Ulsan | 11,438 nm | 12.5 kn | 38.1 | 1,258 t |
Ballast Ulsan → Sture | 11,438 nm | 13 kn | 36.7 | 990 t |
Port time Loading and discharge | — | — | 4.0 | 80 t |
| Round voyage | 22,877 nm | 78.8 | 2,328 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 2,328 tonnes of VLSFO, emitting about 7,336 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 3,668 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
- 80,000 t
- Laden speed
- 12.5 kn at 33 t/day
- Ballast speed
- 13 kn at 27 t/day
- Port time
- 4 days at 20 t/day
- Laden draft
- 14.5 m
- CO2 factor
- 3.151 t per t fuel
Other ship sizes on this route
Questions
How long does a Aframax take from Sture to Ulsan?
About 38 days 3 hours laden at 12.5 knots over 11,438 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 Aframax burn on this voyage?
About 2,328 tonnes of VLSFO for the round voyage (1,258 t laden, 990 t ballast, 80 t in port), emitting about 7,336 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 3,668 tonnes of CO2, which means the same number of EU allowances to surrender.