# LOG10 Function in Excel

### Part 1: Introduce

#### 📖 Definition

The LOG10 function in Microsoft Excel returns the base-10 logarithm of a number.

#### 🎯 Purpose

The function calculates the power to which the base 10 must be raised to equal a given number.

#### 📝 Syntax & Arguments

syntax
```LOG10(number) ```
• Number: Required. The positive actual number for which you want the base-10 logarithm.

#### 🧠 Explain the Arguments in the function

• Number: This is the value you want to find the base-10 logarithm. It must be a positive actual number.

#### 🔄 Return value

The function returns the base-10 logarithm of the specified number.

None mentioned.

### Part 2: Examples

Here are 5 examples of using the LOG10 function in Microsoft Excel with business-related data:

#### Example 1

• 🎩 Purpose of example: Calculate the base-10 logarithm of a sales figure.
• 📊 Data Sheet and formulas:
ABC
1SalesFormulaResult
286=LOG10(A2)1.9345
3100=LOG10(A3)1
4100000=LOG10(A4)5
• 📜 Explanation: This example demonstrates using the LOG10 function to calculate the base-10 logarithm of various sales figures.

#### Example 2

• 🎩 Purpose of example: Calculate the base-10 logarithm of product quantities.
• 📊 Data Sheet and formulas:
ABC
1QuantityFormulaResult
2500=LOG10(A2)2.69897
31000=LOG10(A3)3
45000=LOG10(A4)3.69897
• 📜 Explanation: This example shows how to use the LOG10 function to calculate the base-10 logarithm of product quantities in stock.

#### Example 3

• 🎩 Purpose of example: Calculate the base-10 logarithm of monthly expenses.
• 📊 Data Sheet and formulas:
ABC
1ExpensesFormulaResult
21200=LOG10(A2)3.07918
32500=LOG10(A3)3.39794
410000=LOG10(A4)4
• 📜 Explanation: This example illustrates how to use the LOG10 function to calculate a business’s base-10 logarithm of monthly expenses.

#### Example 4

• 🎩 Purpose of example: Calculate the base-10 logarithm of customer counts.
• 📊 Data Sheet and formulas:
ABC
1CustomersFormulaResult
2150=LOG10(A2)2.17609
3300=LOG10(A3)2.47712
4900=LOG10(A4)2.95424
• 📜 Explanation: This example demonstrates using the LOG10 function to calculate the base-10 logarithm of customer counts for different branches.

#### Example 5

• 🎩 Purpose of example: Calculate the base-10 logarithm of website visits.
• 📊 Data Sheet and formulas:
ABC
1VisitsFormulaResult
21000=LOG10(A2)3
35000=LOG10(A3)3.69897
410000=LOG10(A4)4
• 📜 Explanation: This example shows how to use the LOG10 function to calculate the base-10 logarithm of website visits for different campaigns.

### Part 3: Tips and Tricks

• Ensure that the number provided is positive, as the function requires a positive actual number.
• The LOG10 function can be helpful in various business scenarios, such as analyzing sales trends, customer behavior, and financial data.
• Experiment with different numbers and scenarios to understand how the function behaves with various inputs.