Antilog Calculator

Enter the value that you want to calculate anti log.

Enter Number:
Enter Base:
Antilog Result:
Enter Number:
Enter Base:
Log Result:


Antilog Calculator 

Introduction The Antilog Calculator is a specialized tool designed for computing the antilogarithm, or inverse logarithm, of any real number. This vital mathematical function reverses the process of logarithmic calculations, essential in various scientific, engineering, and computational fields.

Understanding Logarithms A logarithm represents the exponent by which a base number is raised to produce a given number. For instance, the logarithm of 8 in base 2 (log2(8)) is 3, as 2 raised to the power of 3 equals 8.


Antilog, or inverse logarithm, is the reverse process of logarithmic calculations. If log_b(X) = Y, then the antilogarithm (antilog_b(Y)) is X. Essentially, it finds the original number from its logarithmic value.

How to Calculate Antilog To compute the antilogarithm:

Open the Antilog Calculator.

Input the logarithmic value (Y) and its base (b).

Click "Calculate" to find the antilog (X).

Antilog Calculator Functionality This tool undoes the logarithmic process, reverting back to the original value from a log value. The process includes:

Entering the log value and base.

Clicking "Calculate" or pressing enter.

Antilog Formula

Antilogarithm is essentially an exponential function:

X = antilogb(Y) = bY

where 'b' is the base and 'Y' is the logarithmic value. 

Example Calculation

For a base of 8 and log value 3:

  • Base (b) = 8
  • Log value (Y) = 3

antilog8(3) = 83 = 512

Applications and Real-World Uses

  • Scientific Research: Used in exponential growth models and decay calculations.
  • Engineering: Crucial for signal processing and electrical engineering calculations.
  • Finance: Helps in calculating compound interest and growth rates.

Historical Context The concept of logarithms was introduced by John Napier in the early 17th century, revolutionizing computational methods. The antilogarithm emerged as a natural extension, aiding in reversing logarithmic calculations.


Here are a few more examples

Antilog Input Base Calculation Result Explanation
0 10 10^0 1 Any number raised to the power of 0 equals 1.
2 10 10^2 100 10 raised to the power of 2 equals 100.
10 10 10^10 10,000,000,000 10 raised to the tenth power, resulting in ten billion.
1.5 2 2^1.5 2.828 In base 2, 2 raised to the power of 1.5.
3 5 5^3 125 5 raised to the power of 3 equals 125.
0 7 7^0 1 7 raised to the power of 0 equals 1.
Note: Antilog of 0 is always 1, regardless of the base. If the base is not specified, base 10 is typically assumed.


Frequently asked questions: 

  1. How do I calculate antilog?
    Answer: To calculate the antilogarithm of a number, you need to raise the base of the logarithm to the power of that number. The formula is: antilogb(Y) = bY, where 'b' is the base and 'Y' is the logarithmic value.
  2. What is the antilog of 3?
    Answer: The antilog of 3, assuming a base of 10 (common in many contexts), is 103 = 1000.
  3. What is the antilog of 10 base 10?
    Answer: For base 10, the antilog of 10 is 1010 = 10,000,000,000.
  4. What is the inverse of log base 10?
    Answer: The inverse of the logarithm base 10 is the exponential function with base 10. It is expressed as 10Y, where 'Y' is the logarithmic value.
  5. Where is antilog on a calculator?
    Answer: On most scientific calculators, the antilog function is represented as "10^x" for base 10 antilogs. For other bases, you might need to use the exponential function (e^x) and adjust the base accordingly.
  6. Why do we calculate antilog?
    Answer: Antilogarithms are used to reverse the process of logarithms, often in scientific calculations, to determine the original value before it was logarithmically transformed. This is particularly useful in fields like chemistry, physics, and engineering.
  7. What is log of zero?
    Answer: Logarithm of zero is undefined. In mathematical terms, there is no real number which, when raised to any power, will result in zero.
  8. How to calculate logarithm?
    Answer: To calculate the logarithm of a number, you use the formula logb(X), where 'b' is the base and 'X' is the number whose logarithm you want to find. This calculates how many times you need to multiply the base to get X.
  9. What is the antilog of 2?
    Answer: Assuming a base of 10, the antilog of 2 is 102 = 100.
  10. What is the antilog of 4?
    Answer: For a base of 10, the antilog of 4 is 104 = 10,000.
  11. How do you find the antilog of a 3-digit number?
    Answer: To find the antilog of a 3-digit number, raise the base (usually 10) to the power of that number. For example, the antilog of 123 in base 10 is 10123.
  12. What is the exact value of log 3?
    Answer: The exact value of log 3 (assuming a base of 10) is approximately 0.4771. This is a transcendental number and cannot be represented exactly.
  13. How do you find the value of log 3?
    Answer: You can find the value of log 3 using a scientific calculator or logarithmic tables. In a calculator, simply enter 'log' followed by 3 if it’s base 10.
  14. Is antilog always 10?
    Answer: No, antilog is not always 10. The base of the antilog depends on the logarithm's base. For example, the antilog in base 2 calculations will be 2Y.
  15. What is the formula for log and antilog?
    Answer: The formula for logarithm is logb(X), where 'b' is the base, and 'X' is the number. For antilogarithm, the formula is antilogb(Y) = bY.
  16. How to do antilog in excel?
    Answer: In Excel, the antilog of a number can be calculated using the POWER() function. For example, =POWER(10, Y) calculates the antilog of Y in base 10.