iPhone Calculator history: copy the expression, not just the answer

To reuse an earlier calculation, open Calculator, tap Change Mode, choose Basic or Scientific, then tap the Clock button. Tap a history entry to resume the calculation where you left off. To take information elsewhere, touch and hold the entry and choose Copy Expression or Copy Result.

Keep the calculation’s context

Suppose two entries both equal 60: 48+12 for workshop supplies and 75-15 for a travel allowance. The result alone cannot tell you which entry you meant. Copy the expression and add a label in your notes. If you also need the answer, the complete lines could read:

• 48+12=60: Workshop supplies
• 75-15=60: Travel allowance left

Copy Result is useful when the destination needs only the single value. For a note you may revisit, the expression and label preserve the inputs and purpose.

Enter both examples in Calculator, open history and copy the expression from each into a note. Add its label and compare the two lines. You can check your expression and label in the calculation context exercise. The exercise checks the chosen record, expression, and context; 60 alone does not identify the record. It does not access your Calculator history.

Remove entries you no longer need

Swipe left on one history entry to delete it. To delete several, tap Edit, select the calculations, then tap Delete. To remove every entry, use Edit > Clear All > Clear History. Copy any expressions you need before clearing the list.

Source: Apple’s iPhone Calculator guide, checked October 12, 2026 KST. The phone steps are based on the guide; the feature was not tested on a physical iPhone.