When is it krona versus kronor?

Krona is the singular, used only for exactly one (en krona). Every other amount, including zero, uses the plural kronor — so 2 kr is två kronor and 1 kr is en krona.

How is the öre part written?

Öre, the hundredth of a krona, is conventionally read as digits rather than spelled out, for example och 56 öre. The tool takes the first two decimal places as the öre value.

Why is one written en and not ett?

Krona is a common-gender (utrum) noun, so it takes the common-gender form of one, en krona, not the neuter ett. The tool applies en automatically before kronor-related words.

Which decimal separator should I use?

Both work. If you use a comma, as in 1 234,56, it is treated as the decimal point in line with Swedish convention; if you use a dot, as in 1234.56, that is the decimal point. Any other grouping character is ignored.

Is the amount sent to a server?

No. The number-to-words logic and currency rules are bundled into the page, so the entire conversion runs in your browser with no upload.

Swedish Currency in Words

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The Swedish Currency in Words tool writes a krona amount the way it would appear on a Swedish invoice or cheque: the whole-krona part spelled out in words and labelled krona or kronor, with the öre fraction shown as digits.

How it works

Parse the amount. The tool accepts Swedish formatting (1 234,56) or English formatting (1234.56). It detects the decimal separator, strips grouping characters, and splits the figure into whole kronor and öre.
Spell the kronor. The integer part is converted to Swedish cardinal words using the short scale (tusen, miljon, miljard). Because krona is a common-gender noun, a single unit is rendered en krona, and every other count uses kronor.
Append the öre. The first two decimal places become the öre value, read as digits, for example och 56 öre. Öre is invariant, so it is the same word for 1 öre and 56 öre.

Singular versus plural

1 kr → en krona
2 kr → två kronor
0 kr → noll kronor

Example

1 234,56 becomes Ettusen tvåhundratrettiofyra kronor och 56 öre. The first letter is capitalised so the line can be dropped straight into an amount-in-words field.