The Dano-Norwegian fleet consisted of 40 ships with about 927 guns, and the Swedish fleet consisted of 34 ships with 1018 guns and 7 fireships. The Dano-Norwegian fleet, coming from the east, and the Swedish fleet, coming from the west, met just north of the island of Fehmarn. The Swedes turned and sailed south along the west side of Fehmarn, inshore of a shoal, while the Danes followed a little further offshore. The Swedes turned north and swung around before resuming their westward course alongside the Danes. As the battle progressed the fleets turned before the wind, north and then back east south of the island of Langeland. As they approached the island of Lolland the Swedes turned south and eventually ended up in Kiel Bay while the Danes continued south-east, anchoring to the east of Fehmarn.
Casualties
Neither side had lost a ship. Dano-Norwegian casualties were 37 killed and 170 wounded, and Swedish casualties were 32 killed and 69 wounded. Among the Dano-Norwegian casualties were commander Jørgen Vind, who died of his wounds soon after the battle, and the king, whose wounds included the loss of an eye.
Impact
While the Dano-Norwegian fleet gained a minor success when it subsequently managed to incarcerate the Swedish fleet at the Bay of Kiel, the battle was not decisive: in a subsequent encounter, the Dano-Norwegian navy was utterly defeated off the Fehmarn coast. The significance of the battle lies rather in it being retrospectively perceived as the last Dano-Norwegian victory over her long-time adversary, Sweden, in the two countries' struggle for control of the dominium maris baltici, as well as the heroization of the Dano-Norwegian king's personal commitment during the battle, memorized in the famous Marstrand painting and the first lines of the Danish royal anthym Kong Christian stod ved højen mast.
The Dano-Norwegian merchant ships averaged around 20 guns each.
Sweden
Van:
Scepter 58
Drake 40
Göteborg 36
Leopard 36
Rafael 36
Jupiter 34
Regina 34
Smålands Lejon 32
Katta 22
Tiger 18
Måne 16
2 fireships
Center:
Krona 68
Nyckel 34
Stockholm 34
Samson 32
Apollo 26
Merkurius 26
Salvator 26
Vestervik 26
Vestgöta Lejon 26
Rekompens 22
Svan 22
St Jakob 12
2 fireships
Rear:
Göta Ark 72
Svärd 32
Mars 30
Andromeda 26
Jägare 26
Vesterviks Fortuna 24
Akilles 22
Enhorn 18
Falk 18
Gamla Fortuna 18
Papegoja 12
3 fireships
The fireships were named Meerman, Caritas, Meerweib, Bona, Jungru, St Mikael and 1 other. 4 had previously been used as horse transports and were barely ready.