Skip to content
Excel

ISNUMBER function in Excel

Returns TRUE if the value is a number

=ISNUMBER(value)

ISNUMBER syntax and parameters

One argument, one required.

  • valueanyRequired

    The value that you want tested. The value argument can be a blank (empty cell), error, logical value, text, number, or reference value, or a name referring to any of these.

ISNUMBER examples

Formulas you'll actually reuse.

  1. Coerce amounts that were pasted as text:

    =IF(ISNUMBER(C2), C2, VALUE(C2))

    Result1250

  2. The classic contains-text test — SEARCH returns a number or an error:

    =IF(ISNUMBER(SEARCH("urgent", G2)), "Priority", "Normal")

    Result"Priority"

ISNUMBER in Google Sheets

Same name — your formula ports as-is.

Try ISNUMBER in the playground

Edit the example — nothing to install.

Preloaded with the ISNUMBER formula from Example 1 — change anything and watch it respond.

Loading the editor…

Related functions

More ways Excel gets this done.