How to Do Antilog on Calculator

Calculators are powerful tools that can help us solve a wide range of mathematical problems. One common operation that can be performed on a scientific calculator is finding the antilogarithm, or antilog, of a number. The term ‘antilog’ might sound intimidating, but it’s simply the inverse operation of taking a logarithm, and it’s used to find the original number before it was transformed by the logarithm. This can be crucial in fields such as engineering, economics, and the sciences. To help make this process accessible, let’s explore various methods for calculating antilogs, along with some tips to ensure you can do it with ease and accuracy.

how to do antilog on calculator

Using a Standard Scientific Calculator

The most common way to compute an antilog is to use a scientific calculator. This device is specially designed to handle complex operations like antilogarithms.

Detailed Steps

  1. Identify the base of the logarithm: The antilog function will depend on the base of the original logarithm. The base is usually 10 (common logarithm) or e (natural logarithm).
  2. Locate the antilog function: On most scientific calculators, the antilog function for base 10 is labeled as 10^x or ANTILog, and for the base e, it is labeled as e^x or labeled under the LN or LOG button but used with a shift or second function key.
  3. Enter the logarithmic value: Type in the number for which you want to find the antilog.
  4. Press the antilog button: After entering the value, press the antilog function button (10^x for base 10 or e^x for base e) to calculate the antilog.
  5. View the result: The display will show the antilog of the entered logarithm.


This method is straightforward and suitable for most users since scientific calculators are commonly available. However, a potential downside is the necessity to be aware of the base of the logarithm for accurate results.

Using a Graphing Calculator

Graphing calculators provide a visual approach to mathematics, which can be especially helpful when dealing with logarithms and antilogarithms.

Detailed Steps

  1. Access the function input: Turn on your graphing calculator and go to the function input screen, where you can enter equations and expressions.
  2. Input the antilog formula: Similar to the scientific calculator, you’ll need to use the ^ button to raise the base to a power. For example, if the base is 10 and the logarithm is 2, you would input 10^2.
  3. Plot the function: Have the calculator plot the function if you want to see a visual representation.
  4. Calculate the value: Use the calculator’s ‘calculate’ function to find the exact value of the antilogarithm on the graph.


Graphing calculators not only perform the calculation but also provide a graphical representation, which is helpful in understanding the function’s behavior. However, these calculators can be expensive and more complex to use.

Using Online Calculator Tools

For those who do not have a physical calculator handy, the internet provides a wealth of free online tools that can calculate antilogs.

Detailed Steps

  1. Find an online calculator: Search for “online antilog calculator” using a search engine.
  2. Enter the logarithmic value: Once you’ve chosen a calculator, enter the logarithmic value you need the antilog for.
  3. Specify the base: If required, select the correct base (usually 10 or e) for the logarithmic value you are using.
  4. Calculate the antilog: Click the “calculate” button or similar to find the antilog.


Online calculator tools are convenient and user-friendly. They are readily accessible from anywhere with internet access. However, they require a level of trust in the accuracy of the website, and users must have internet connectivity.

Using a Mobile App

Mobile devices can also be used to calculate antilogs, as there are many calculator apps available for smartphones and tablets that include this function.

Detailed Steps

  1. Download a calculator app: Choose and download a calculator app that includes scientific functions.
  2. Open the app: Tap on the app icon to open it.
  3. Find and use the antilog function: Look for the 10^x or e^x function, depending on the base, and use it just as you would on a scientific calculator.


Mobile apps make it possible to calculate antilogs on the go, making them incredibly convenient. However, users will need to ensure their chosen app is reliable and has the necessary scientific functionalities.

Exploring Built-In Computer Calculator Functions

Many computers come with a built-in calculator that can perform advanced mathematical calculations, including antilogarithms.

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