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Antilog Calculator.

Calculate an antilogarithm with an explicit base.

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01

Set your values

Results update as you type.

Value: 100

Value

0.000000

Results update automatically as you type.

Use Cases

Solving exponential equations

When you have a logarithmic equation, use the antilog to find the original value. For example, if log_2(x) = 5, then x = 2^5 = 32.

Example: log_2(x) = 5 → x = 2^5 = 32

Scientific and engineering calculations

Antilogs are used in fields like acoustics (decibels), chemistry (pH), and earthquake magnitude (Richter scale) to convert logarithmic measurements back to linear values.

Example: pH = 7 → [H+] = 10^-7 M

Frequently Asked Questions

What is an antilogarithm?
An antilogarithm is the inverse operation of a logarithm. If log_b(x) = y, then the antilogarithm of y with base b is x = b^y. This calculator computes that value.
How do I use this antilog calculator?
Enter the exponent (the logarithm value) and the base. The calculator will compute the antilog by raising the base to the power of the exponent. For example, with exponent 3 and base 10, the result is 1000.
Can the base be any number?
Yes, you can enter any positive base. Common bases are 10, e (Euler's number), and 2. The calculator will compute the antilog for the base you provide.

Tips & Common Mistakes

Tips

  • Ensure the base is a positive number (greater than 0) for valid results.
  • The exponent can be negative, zero, or fractional; the calculator handles all real numbers.
  • For base 10, the antilog is often called the 'inverse log' or '10^x' function.
  • Double-check your inputs: a small change in exponent can lead to a large change in the result.

Common Mistakes to Avoid

  • Using a negative base, which is not defined for real antilogs.
  • Confusing the exponent and base fields – the exponent is the logarithm value, and the base is the logarithm's base.
  • Forgetting that the antilog of 0 is always 1 (for any base), not 0.

Last updated: August 13, 2026