#VALUE! often indicates that a formula received an unsuitable input. Diagnose the argument that failed rather than converting every cell in the referenced range.
Identify the function and inputs
Inspect the detailed error and the function’s argument requirements. If functions are nested, test the inner calculation in a helper cell first. Check whether a referenced cell contains text, a number, a date serial, or another error.
For an expected numeric input, =ISNUMBER(A2) provides a useful type check. A display such as 125.50 does not establish whether that value was imported as text.
Correct meaning before coercion
Use VALUE only when the source string genuinely represents a supported number, date, or time. Inspect decimal conventions and unit labels. Do not strip every nonnumeric character from an identifier or a measurement without understanding its meaning.
Some functions also require compatible range dimensions or a text argument rather than a numeric one. Read the current function guide instead of assuming that every #VALUE! comes from the same text-number problem.
Retest exceptions visibly
Check a valid value, a blank, and a malformed example. Keep conversion errors visible until their cause is understood. If an upstream import repeatedly supplies the wrong type, fix that boundary rather than adding unexplained conversions throughout the workbook.
A broad IFERROR can make the warning disappear while leaving the calculation wrong. Use explicit missing-data behavior only after the valid path works. Preserve the original inputs and compare the final result against a small independently calculated example before replacing formulas across many rows. This also distinguishes a repaired formula from a coincidentally plausible output.
References
Reviewed against the linked official product guidance on November 3, 2026. Features, limits, screen labels, and access can vary by account, platform, region, and organization policy.