# Excel Tutorial: How To Calculate 90 Days From A Date In Excel

## Introduction

Calculating 90 days from a date in Excel can be a crucial task for businesses and individuals alike. Whether it's for tracking financial transactions, managing project deadlines, or simply planning future events, being able to accurately calculate 90 days from a given date is a handy skill to have. In this tutorial, we will cover the step-by-step process to perform this calculation in Excel, so you can streamline your workflow and make informed decisions based on accurate timeframes.

## Key Takeaways

• Calculating 90 days from a given date in Excel is important for various business and personal purposes, such as financial tracking and project management.
• The DATE function, simple arithmetic, EDATE function, DATEDIF function, and Analysis ToolPak add-in are all useful tools for date calculations in Excel.
• Each method for calculating 90 days from a date has its pros and cons, and understanding when to use each method is crucial for accurate calculations.
• Mastering date calculations in Excel can streamline workflow and aid in making informed decisions based on accurate timeframes.
• Practicing and exploring further date calculation functions in Excel is encouraged to expand skills and improve efficiency in date-related tasks.

## Understanding the DATE function

In Excel, the DATE function is used to create a date value by providing the year, month, and day.

### A. Explanation of the DATE function in Excel

The DATE function is a very useful tool in Excel as it allows you to create a date by providing the individual year, month, and day as separate arguments. This can be helpful when performing various date calculations or manipulations.

### B. Syntax and arguments of the DATE function

The syntax of the DATE function is as follows: DATE(year, month, day). The year, month, and day arguments are all required and should be valid numeric values.

### C. Examples of using the DATE function to input a specific date

Let's take a look at a couple of examples to understand how to use the DATE function in Excel to input a specific date.

• Inputting a date with specific year, month, and day: To input the date 90 days from a specific date, you can use the DATE function in combination with other functions to calculate the new date. For example, to calculate 90 days from the date in cell A1, you can use the formula =A1+90.
• Using the DATE function with other functions: You can also use the DATE function in combination with other functions such as TODAY() to input the current date and then add 90 days to it. For example, the formula =TODAY()+90 will give you the date 90 days from the current date.

## Excel Tutorial: How to calculate 90 days from a date in Excel

In this Excel tutorial, we will explore how to calculate 90 days from a given date using simple arithmetic. Adding days to a date is a common task in Excel, and it can be easily accomplished using basic mathematical operations.

### Explanation of how to add days to a date in Excel

Excel stores dates as serial numbers, making it easy to perform calculations on dates. To add days to a date in Excel, you can simply use the + operator to add the desired number of days to the original date.

### Walkthrough of using the + operator to add 90 days to a date

Let's say we have a date in cell A1 (e.g., 01/01/2022), and we want to calculate the date that is 90 days after this date. We can use the formula =A1+90 to achieve this. Excel will automatically calculate the new date by adding 90 days to the original date.

### Pros and cons of using simple arithmetic for date calculations

• Pros: Using simple arithmetic for date calculations is straightforward and easy to understand. It allows for quick and efficient calculations without the need for complex formulas or functions.
• Cons: While simple arithmetic works well for basic date calculations, it may not be suitable for more complex date-related tasks, such as accounting for leap years or adjusting for holidays.

## Using the EDATE function to calculate 90 days from a date in Excel

Excel provides a variety of powerful functions for manipulating dates and performing date arithmetic. One such function is the EDATE function, which can be used to add or subtract a specified number of months to a given date. In this tutorial, we will explore how to use the EDATE function to calculate 90 days from a date in Excel.

### Introduction to the EDATE function in Excel

The EDATE function in Excel is used to calculate a date that is a specified number of months before or after a given date. It is particularly useful when you need to work with dates in financial or accounting contexts, where it is common to perform calculations based on a specific number of months.

### Syntax and arguments of the EDATE function

The syntax of the EDATE function is as follows:

• start_date: This is the initial date from which you want to calculate the new date.
• months: This is the number of months that you want to add or subtract from the start_date.

### Step-by-step guide on using the EDATE function to add 90 days to a date

Now, let's walk through a step-by-step guide on how to use the EDATE function to calculate 90 days from a given date:

1. Open Excel: First, open Excel and create a new spreadsheet or open an existing one where you want to perform the calculation.
2. Enter the date: In a cell, enter the date from which you want to calculate 90 days in a valid date format (e.g., 01/01/2022).
3. Use the EDATE function: In another cell, use the following formula to calculate 90 days from the entered date: =EDATE(A1,3), where A1 is the cell containing the original date, and 3 represents the number of months (which is equivalent to 90 days).
4. Press Enter: After entering the formula, press Enter to see the calculated result, which will be the date 90 days after the original date.

## Excel Tutorial: How to calculate 90 days from a date in excel

In this tutorial, we will explore how to use the DATEDIF function in Excel to calculate the difference in days between two dates, specifically how to calculate 90 days from a given date.

### Overview of the DATEDIF function and its purpose

The DATEDIF function in Excel is used to calculate the difference between two dates in days, months, or years. It can be particularly useful for tasks such as calculating the length of a project, the tenure of an employee, or in our case, determining a future date based on a given date.

### Syntax and arguments of the DATEDIF function

The syntax for the DATEDIF function is:

• Start_date: This is the initial date from which you want to calculate the difference.
• End_date: This is the date up to which you want to calculate the difference.
• Unit: This specifies the type of difference you want to calculate (e.g., "d" for days, "m" for months, "y" for years).

### Examples of using the DATEDIF function to calculate the difference in days

Let's look at some examples of how to use the DATEDIF function to calculate 90 days from a given date:

• For example, if the start date is in cell A1, you can use the formula =A1+90 to calculate the date 90 days after the start date.
• If you want to use the DATEDIF function, you can use the formula =DATEIF(A1,A1+90,"d") to achieve the same result.
• Another example would be using the TODAY function in combination with the DATEDIF function to calculate 90 days from the current date: =DATEDIF(TODAY(),TODAY()+90,"d").

## Utilizing the Analysis ToolPak add-in for date calculations

When it comes to calculating dates in Excel, the Analysis ToolPak add-in can be an incredibly useful tool. In this tutorial, we will explore how to use this add-in to calculate 90 days from a given date.

### Introduction to the Analysis ToolPak add-in in Excel

The Analysis ToolPak is an add-in program that provides data analysis tools for Excel. It includes a variety of functions and tools that are not part of the standard Excel installation, making it a valuable resource for performing advanced calculations and analysis.

### Enabling and using the Analysis ToolPak for date calculations

To enable the Analysis ToolPak add-in in Excel, you'll need to navigate to the "File" tab, select "Options," and then click on "Add-Ins." From there, you can select "Analysis ToolPak" from the list of available add-ins and click "Go" to enable it.

Once the Analysis ToolPak is enabled, you can access its functions by clicking on the "Data" tab and selecting "Data Analysis" from the "Analysis" group. From there, you can choose the "Date" category and find the appropriate function for your date calculation needs.

### Advantages of using the Analysis ToolPak for complex date calculations

There are several advantages to using the Analysis ToolPak for complex date calculations. One of the main benefits is the wide range of date-related functions it offers, including functions for calculating the difference between two dates, adding or subtracting days from a date, and determining the end date based on a given start date and duration.

Additionally, the Analysis ToolPak provides a user-friendly interface for accessing these functions, making it easier to perform complex date calculations without needing to write complex formulas or scripts.

## Conclusion

In conclusion, we have explored three different methods for calculating 90 days from a date in Excel: using the + operator, the DATE function, and the EDATE function. These functions provide flexibility and efficiency for date calculations in Excel.

We encourage you to practice and explore further date calculation functions in Excel to enhance your skills and efficiency when working with dates. The more familiar you become with these functions, the more adept you will be at handling date-related tasks in Excel.

Mastering date calculations in Excel is crucial for accurate financial forecasting, project planning, and data analysis. Being able to manipulate and calculate dates efficiently will save you time and effort in your work, making it a valuable skill to invest in.

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