calculate sum of two cells excel

Excel Cell Sum Calculator

Excel Style Sum: A1 + B1

Result (A1 + B1): 0

📊 How to Calculate the Sum of Two Cells in Excel

✅ Formula to Add Two Cells:

To sum the values of two cells in Excel, use this basic formula:

= A1 + B1

📌 Example:
If A1 = 10 and B1 = 20, typing =A1+B1 in another cell (like C1) will display 30.


🔢 Alternative Using SUM Function:

You can also use the SUM function:

=SUM(A1, B1)

This does the same thing — it adds the values in A1 and B1.


🧠 Tip:

If you want to sum a range (e.g., from A1 to A10), use:

=SUM(A1:A10)

🧰 Common Use Cases:

  • Add two price cells: =Price + Tax
  • Combine hours worked across two days
  • Calculate total marks from two subjects

❓FAQs – Calculating the Sum of Two Cells in Excel

🔹 Can I add cells from different sheets?

Yes! Example:

=Sheet1!A1 + Sheet2!B1

🔹 What if one of the cells is blank?

Excel treats blank cells as 0 in most addition operations.


🔹 What if a cell has text?

You’ll get an error unless the text can be interpreted as a number.