How long have you got to get from wherever it is you land on mainland Europe (I assume it is the Hook of Holland) to get to Norway?
Sweden’s border with Norway is some 1,600 km (1,000 miles) long. Where do you intend to head to in Norway when you’ve crossed over the border between Sweden and Norway? Oslo? Trondheim? Tromso?
This is the basic route Hook to Oslo - This is near enough 850 miles
https://kurv.gr/Ds6KQ
This is the basic route Hook, Copenhagen, Malmo, Oslo - This is near enough 1,000 miles
https://kurv.gr/dvNRc
This is the basic route Hook, Copenhagen, Malmo, Tromso - This is near enough 2,100 miles - As you can see it all but avoids Norway entirely
https://kurv.gr/df9rT
This is Hook, Copenhagen, Malmo, Oslo, Trondheim, Tromso - This is near enough 2.100 miles, too but has much more Norway in it
https://kurv.gr/hqSxG
All four avoid all motorways and goat tracks.
You can now see why I ask the two questions.
Whilst Kurviger has its faults, it’s quite useful for just roughing things out. Play around in it, you can’t break it. For example, you could muck around by breaking the Holland / Germany bit into two: Take the motorway from the Hook to Germany and then look at non-motorway alternatives up to Copenhagen. There are even suggestions in the Germany section how to maybe fill in that that part, too.
I am never quite sure why bods say, “Avoiding all motorways” when going, what is a long way from A to B, when the main purpose of their journey is to get to B (in this case I assume, Oslo) to then spend apparently four to six weeks riding around in Norway.
Holland, through north west Germany, into Denmark and through the south west chunk of Sweden into southern Norway is predominantly flat. Does that mean it has to be dull per-se? No, of course not but to avoid the motorways for nearly 1,000 miles will take time and you have to work on planning your route, which itself will depend on the time you have available and the daily distances you want to do, all avoiding the motorways.
To give you an idea: When I made our clockwise lap of the outside of Germany, starting from Lubeck (near enough on the Baltic coast) we had near enough 21 days door-to-door London > Around Germany > London. The German lap was our main purpose and would largely avoid motorways, concentrating on lesser major roads and large’ish minor roads. It would also involve days off the bikes in places, so not all of the 21 days would involve riding clockwise around Germany non-stop. I just bit the bullet and took the motorways from Calais, via Holland to Hamburg and then the ‘better’ roads to Lubeck. Had I just wanted to go to Lubeck and along the Baltic coast and not lapped Germany at all, I might well have done something different, finding smaller roads in north west Germany to get me from Holland to Lubeck. But that would have been a different holiday entirely.
PS The great news is that you have about a year to plan it. That’s great, as many posts start, “Me and my six mates we are off tomorrow and we want us….”