For NOK 600, the headline is straightforward: you get NOK 600 in bonus. But when I work out what an oddsbonus means in NOK, I look at the betting required before you can withdraw, not just the amount added to your deposit.
Eight of the nine sites at the top give you a 100 % bonus on your first sports deposit. The requirement is to wager your deposit plus the bonus 6 times, at odds of 1.50 or higher, within 21 days.
So your NOK 600 deposit and NOK 600 bonus make NOK 1,200. Multiply that by 6, and you have NOK 7,200 in bets to place before you can withdraw. Spread across the full 21 days, that comes to about NOK 343 a day. That is the figure I would keep alongside the NOK 600 bonus when comparing the offers.
The biggest offer right now is Quickz: 100 % up to €500, with code WELCOME500. Next is Reblz, offering 100 % up to €400 with code WELCOME400. Betinferno, Winzie, SlotOwl, LuckyJungle, Unlimit Casino and Monsino each offer 100 % up to €250 with code WELCOME250.
Those ceilings tell you how high the matching bonus can go. For the NOK 600 example, the calculation remains deposit plus bonus, multiplied by 6.
There is also a limit on what counts: each bet counts for at most 20 % of the bonus. Keep that alongside the minimum odds and the 21-day deadline.
If you want to use a different deposit, the calculator lets you change it and see the turnover at once.