Voyage estimate
Suezmax voyage: Mongstad to Porvoo
A Suezmax carrying 130,000 tonnes from Mongstad to Porvoo sails about 1,057 nm laden on the open-sea route, about 3.5 days at 12.5 knots. With the ballast leg back and 4 days in port, the round voyage takes about 10.9 days and burns about 353 tonnes of fuel.
Round voyage
10.9 d
3.5 d laden
Laden distance
1,057 nm
Shortest route
Fuel (VLSFO)
353 t
Round voyage
CO2
1,112 t
1,112 t in EU ETS
Round voyage breakdown
| Leg | Distance | Speed | Days | Fuel |
|---|---|---|---|---|
Laden Mongstad → Porvoo | 1,057 nm | 12.5 kn | 3.5 | 141 t |
Ballast Porvoo → Mongstad | 1,057 nm | 13 kn | 3.4 | 112 t |
Port time Loading and discharge | — | — | 4.0 | 100 t |
| Round voyage | 2,115 nm | 10.9 | 353 t |
Laden on the open-sea route; ballast on the open-sea route.
Emissions and EU ETS
The round voyage burns about 353 tonnes of VLSFO, emitting about 1,112 tonnes of CO2. Both ports are in the EU ETS area, so all emissions count: about 1,112 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 Porvoo?
About 3 days 13 hours laden at 12.5 knots over 1,057 nm on the open-sea route. The full round voyage, with the ballast leg back and 4 days in port, takes about 10.9 days.
How much fuel does a Suezmax burn on this voyage?
About 353 tonnes of VLSFO for the round voyage (141 t laden, 112 t ballast, 100 t in port), emitting about 1,112 tonnes of CO2.
Is this voyage in the EU Emissions Trading System?
Yes. Both ports are in the EU ETS area, so all emissions count: about 1,112 tonnes of CO2, which means the same number of EU allowances to surrender.