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How to Use AutoFill in Excel
Estimated Time to Fix: 3 minutesApplies to: Microsoft Excel (Microsoft 365, Excel 2021, Excel 2019, Excel for the web)
Article Type: How-To
Last Updated: 2026-07-16
Summary
Use Excel's AutoFill feature to quickly fill cells with patterns, sequences, dates, and formulas by dragging the fill handle. AutoFill saves time by recognizing patterns and extending them automatically.
Prerequisites
- Microsoft Excel (desktop or web).
Instructions
1. AutoFill a Simple Series
Fill a column or row with a sequence of numbers, dates, or day names.
- Type the first value in a cell (for example:
1,Monday, orJanuary). - Hover over the small green square in the bottom-right corner of the cell — this is the fill handle. Your cursor changes to a thin black cross (+).
- Click and drag the fill handle down (or right) across the cells you want to fill.
- Release the mouse.
Excel fills the cells with a sequence: 1, 2, 3... or Monday, Tuesday, Wednesday... or January, February, March...
TIP
If dragging a single number copies the value (1, 1, 1...), hold Ctrl while dragging to force a series (1, 2, 3...). Alternatively, enter two values (1 and 2), select both, then drag — Excel recognizes the pattern.
2. AutoFill a Number Pattern
Teach Excel a custom pattern by entering two or more starting values.
- Type
2in one cell and4in the cell below it. - Select both cells.
- Drag the fill handle down.
- Excel continues the pattern: 6, 8, 10, 12, and so on.
This works with any increment: 5, 10, 15 or 100, 200, 300 or even decreasing values like 100, 90, 80.
3. AutoFill Dates
Fill cells with dates in any interval.
- Type a date in a cell (for example:
7/1/2026). - Drag the fill handle down to create a daily sequence (7/1, 7/2, 7/3...).
- To fill by weeks or months instead:
- Right-click the fill handle and drag.
- When you release, a menu appears with options: Fill Days, Fill Weekdays, Fill Months, Fill Years.
- Choose the interval you want.
TIP
Fill Weekdays is perfect for business date sequences — it automatically skips Saturdays and Sundays.
4. AutoFill Formulas
Copy a formula to multiple rows at once.
- Enter a formula in the first cell (for example:
=A2*B2). - Press Enter to confirm the formula. Then click back on the cell with the formula.
- Drag the fill handle down to apply the formula to all rows.
Excel automatically adjusts the row references (A3*B3, A4*B4, etc.). This is called relative referencing.
TIP
If you want part of the formula to stay fixed (like a tax rate in cell $D$1), use absolute references with the $ symbol: =A2*$D$1. The $D$1 part won't change when you AutoFill.
5. AutoFill Options
Control what gets filled after dragging.
- After dragging the fill handle, a small Auto Fill Options button (📋) appears at the bottom-right of the filled range.
- Click it to see options:
- Copy Cells — Repeat the same value in every cell.
- Fill Series — Continue a sequence (default for numbers with a pattern).
- Fill Formatting Only — Apply formatting without values.
- Fill Without Formatting — Copy values without formatting.
6. Verify the Result
Check that the AutoFill produced the correct values.
- Review the filled cells to make sure the pattern, dates, or formulas are correct.
- If something is wrong, press Ctrl + Z to undo and try again with a different starting pattern.
Troubleshooting
TIP
Double-click shortcut: Instead of dragging the fill handle, double-click it. Excel automatically fills down to the last row of adjacent data. This is much faster for large datasets.
| Symptom / Error | Potential Cause | Solution |
|---|---|---|
| AutoFill copies the value instead of creating a series | Only one value entered | Enter two values to establish a pattern, select both, then drag. Or hold Ctrl while dragging a single number. |
| Fill handle doesn't appear | Feature disabled in settings | Go to File > Options > Advanced > check Enable fill handle and cell drag-and-drop. |
| Formulas don't adjust row references | Formula uses absolute references ($) | Remove the $ signs from the cell references you want to adjust. Use A2 instead of $A$2. |
| Dates fill by day when you want months | Default fill behavior is daily | Right-click the fill handle and drag, then choose Fill Months from the menu. |
| AutoFill creates the wrong pattern | Excel misread the pattern from your starting values | Enter three or more starting values to make the pattern unambiguous. |