You can replace a formula with its calculated value so that the formula no longer recalculates. Replacing a formula with its static result can help improve performance if the workbook contains many formulas or complex formulas. If you want to replace only part of a formula, you can replace only the part that you don't want to recalculate. You can convert formulas to their values on a cell-by-cell basis or convert a whole range immediately.
Replace a formula with its calculated value
Caution: When you replace a formula with its value, Excel permanently removes the formula. If you accidentally replace a formula with a value and want to restore the formula, click Undo 
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Select the cell that contains the formula.
If the formula is an array formula, select the range that contains the array formula.
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On the Home tab, click Copy.
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On the Home tab, click Paste.
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Click the arrow next to Paste Options
Replace part of a formula with its calculated value
Caution: When you replace part of a formula with its value, it cannot be restored.
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Select the cell that contains the formula.
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In the formula bar, select the part of the formula that you want to replace with its calculated value.
Note: When you select the part of the formula that you want to replace, make sure that you include the whole operand. For example, if you select a function, you must select the whole function name, the opening parenthesis, the argument, and the closing parenthesis.
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Press
Excel calculates the selected part of the formula.
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Press RETURN.
If the formula is an array formula, press
Excel replaces the selected part of the formula with its calculated value.
See also
Change formula recalculation, iteration, or precision
