Antilog Calculator
The Antilog Calculator reverses a logarithm: given a log value and its base, it finds the original number. Taking the antilog is the same as raising the base to the power of the log value. The formula used is: antilog = base^(log value).
Formula
Antilog = b^x
- The Antilog Calculator updates instantly when you change the log value or base.
- Formula: antilog = base^(log value)
- Input definitions: • Log Value: the exponent you want to reverse • Base: the logarithm base (10 for common log, e ≈ 2.718 for natural log, 2 for binary)
- Antilog is the inverse of taking a logarithm, so antilog(log₀(x)) = x.
- For base 10, antilog of 2 is 100; for base e, it is the exponential function e^x.
Example Calculation
Inputs
- Log Value: 2
- Base: 10
The antilog of 2 in base 10 is 10² = 100. In other words, because log₁₀(100) = 2, the antilog of 2 brings you back to 100.
Frequently asked questions
What is an antilog?
The antilogarithm reverses a logarithm. If log_b(x) = y, then the antilog of y is x = b^y.
How do I calculate an antilog?
Raise the base to the power of the log value: antilog = base^(log value).
What base should I use?
Use 10 for common logs, e (≈ 2.718) for natural logs, or 2 for binary logs — whichever base your log value came from.
What is the antilog of 0?
For any base, the antilog of 0 is 1, because any non-zero number raised to the power 0 equals 1.
Is antilog the same as exponentiation?
Yes. Taking an antilog is exactly raising the base to a power, so it is the inverse operation of the logarithm.