1 Swedish Krona is worth about $0.14.
It depends on the day, but on an average day there is between 60-100 Kronas in one US Dollar, making the krona worth about 1-2 cents.
i have one and from what i've seen its worth roughly 10 us dollars
That's one Krona. Currently (June 2013) it's about 6 Krona to one USD. Or 10 Krona to one British Pound.
The Kroner is an obsolete monetary unit, so it is a bit like comparing Federal Reserve Notes with Confederate Money.
Your coin is from Iceland and is worth less than one US cent. "Island" isn't the English word island; rather, it's Icelandic for "Iceland".
One cent
The Icelandic krona is very unstable. when this answer was written you could get kr.260 but one year ago you could had kr.160
A US dollar is worth 8.4 Swedish Kroners. The actual answer is 8.43882 but I rounded the answer to get 8.4 Exchange rates change every day, so anything posted here can become rapidly out of date. You'll need to check a site such as www.xe.com for current values.
If it's dated within the last 25 years or so it's a common circulation coin worth face value only, about 12 to 14 U.S. cents. Conversion rates change every day. You can find current figures at many sites. www.xe.com is a very good one.
Ore
The only legal one, sold for $7,590,020.00 in July of 2002
Aurar is the plural of eyrir, an Icelandic monetary unit worth one hundredth of a krona. Icelandic for Iceland is Island. So a coin that says 'Island 20 aurar' is an Icelandic fifth of a krona.