Gjere om tekst til tal

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# Konvertere tekst til tal

Defaults settings in Calc converts text inside cells to the respective numeric values if an unambiguous conversion is possible. If no conversion is possible, Calc returns a #VALUE! error.

Only integer numbers including exponent are converted, and ISO 8601 dates and times in their extended formats with separators. Anything else, like fractional numbers with decimal separators or dates other than ISO 8601, is not converted, as the text string would be locale dependent. Leading and trailing blanks are ignored.

Desse ISO 8601-formata vert konverterte:

- CCYY-MM-DD

- CCYY-MM-DDThh:mm

- CCYY-MM-DDThh:mm:ss

- CCYY-MM-DDThh:mm:ss,s

- CCYY-MM-DDThh:mm:ss.s

- tt:mm

- hh:mm:ss

- hh:mm:ss,s

- hh:mm:ss.s

Koden CC står for århundre og kan ikkje sløyfast. I staden for T, som er skiljeteiknet mellom dato- og tidsformatet, kan du bruka (nøyaktig) eitt mellomrom.

Dersom ein dato er brukt, må han vere ein gyldig Gregoriansk kalenderdato. I dette tilfellet må klokkeslettet vere i intervallet 00:00 til 23:59:59.99999…

Dersom berre ein tidsstreng er gjeven, kan han ha timetal større enn 24 medan minutt og sekund ikkje må vera større enn 59.

The conversion is done for single scalar values only, not within ranges.

The conversion is done for single scalar values, as in =A1+A2, or ="1E2"+1. Cell range arguments are not affected, so SUM(A1:A2) differs from A1+A2 if at least one of the two cells contain a convertible string.

Tekststrengar i formlar vert også konverterte. T.d. vil ="1999-11-22"+42 returnere datoen 42 dagar etter 22. november 1999. Utrekningar som involverer lokaliserte datoar som ein streng inne i formlar returnerer ein feil. For eksempel kan dei lokaliserte datostrengane "11/22/1999" eller "22.11.1999" ikkje brukast i automatiske konverteringar.

When using functions where one or more arguments are search criteria strings that represents a regular expression, the first attempt is to convert the string criteria to numbers. For example, ".0" will convert to 0.0 and so on. If successful, the match will not be a regular expression match but a numeric match. However, when switching to a locale where the decimal separator is not the dot makes the regular expression conversion work. To force the evaluation of the regular expression instead of a numeric expression, use some expression that can not be misread as numeric, such as ".[0]" or ".\0" or "(?i).0".

## Eksempel

In A1 enter the text '1e2 (which is converted to the number 100 internally).

In A2 enter =A1+1 (which correctly results in 101).

The formula =SUM(A1:A2), returns 101 instead of 201 because the conversion does not occur in a range, only for single scalar values. Here, '1e2 is treated as string which has value 0 for the SUM function.

=SUM("1E2";1) returns #VALUE! because SUM() and some others that iterate over number sequences explicitly check the argument type.

## Changing the default text to number conversion settings

The text to number conversion can be customized in the Detaljerte innstillingar for utrekningar option.

Liknande emne

Detaljerte innstillingar for utrekningar

Formatera tal som tekst

Skrive inn tal med innleiande nullar

Format → Celler → Tal

Formatera tal med desimalar