Icelandic krona to Swiss francs, in your head
One rule, the error band that comes with it, and the point at which it stops being the right rule. Updated from the live rate feed.
Kronur to Swiss francs. Accurate to within 1.4% at today's rate, which means it reads about 1.4% dearer than the real price.
The ladder
The middle column is what the rule gives you standing in a market. The right column is the real number, so you can see exactly where the shortcut costs you.
| Icelandic krona | Rule of thumb | Actual |
|---|---|---|
| kr50 | CHF 0.333 | CHF 0.329 |
| kr100 | CHF 0.667 | CHF 0.657 |
| kr200 | CHF 1.33 | CHF 1.31 |
| kr500 | CHF 3.33 | CHF 3.29 |
| kr1,000 | CHF 6.67 | CHF 6.57 |
| kr2,000 | CHF 13.33 | CHF 13.15 |
| kr5,000 | CHF 33.33 | CHF 32.87 |
| kr10,000 | CHF 66.67 | CHF 65.73 |
| kr20,000 | CHF 133.3 | CHF 131.5 |
Going the other way
Useful at the ATM, where you choose an amount in Swiss francs and want to know what lands in your hand.
| Swiss francs | Icelandic krona |
|---|---|
| CHF 1 | kr152.1 |
| CHF 5 | kr760.7 |
| CHF 10 | kr1,521 |
| CHF 20 | kr3,043 |
| CHF 50 | kr7,607 |
| CHF 100 | kr15,214 |
What catches people out in Iceland
Iceland is effectively cashless and expensive, so the rule is mostly there to stop the four-figure restaurant totals from causing a panic.
When this rule stops working
Rules of thumb rot quietly. This one holds while the rate stays roughly between 145 and 155 ISK to the franc. Outside that band a different divisor becomes the better one to memorise. We regenerate this page from the live rate feed, so the date above tells you how fresh the number is — if you are reading this a long way after August 2026, check it before you rely on it.
Or skip the arithmetic entirely
RoamRate does this conversion with no signal, in one hand, on a number pad built for a thumb. Free for CHF; ISK and 150+ other currencies unlock for $4.99, once.
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