Top 5 Most Commonly Used Excel Functions & Essential Tips You Need to Know

In Excel, functions are among the most powerful tools for calculating and organizing data. Among the many available functions, some are used every day in the workplace. Today, we’ll introduce the five most commonly used functions that every Excel power user should know, along with key tips.

✅ 1. SUM Function – The Most Basic Essential

This function calculates the total of a range using the format =SUM(A1:A10).

✅ 2. IF Function – Return Results Based on Conditions

The structure =IF(condition, value_if_true, value_if_false) is very useful for evaluating conditions.

=IF(B2>=70, "Pass", "Fail")

👉 Displays “Pass” if the score is 70 or higher; otherwise, it displays “Fail.”

✅ 3. VLOOKUP – Look Up Data by Column

Use the format =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup]) to find a value in another table.

✅ 4. COUNTIF – Count Cells That Meet a Condition

You can use =COUNTIF(range, criteria) to count the number of cells that meet a specific condition.

=COUNTIF(A1:A10, ">50")

👉 Returns the number of cells in A1:A10 that contain a value greater than 50.

✅ 5. INDEX & MATCH – A Powerful Alternative to VLOOKUP

Although it is a combination of functions, it lets you look up data more flexibly than VLOOKUP.

=INDEX(B2:B10, MATCH(“Hong Gildong”, A2:A10, 0))

👉 Finds “Hong Gildong” in column A and returns the value from column B in the same row.

📌 Five Essentials You Need to Know

• 📊 SUM: The most commonly used basic function
• 🔀 IF: Essential for conditional logic
• 🔍 VLOOKUP: Find data in a table
• 📈 COUNTIF: Count cells by condition
• 🧠 INDEX & MATCH: A highly versatile lookup combination

🔚 Conclusion

It would not be an exaggeration to say that 90% of everyday Excel work can be handled with these five functions. The best way to learn them is to use them often until they become familiar. Try practicing them one at a time today!

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