Antilog Calculator
Find the antilogarithm (inverse log) for any base. The antilog of x in base b is simply b raised to the power x. For example, antilog base 10 of 3 is 10^3 = 1,000. You can also switch to log mode to find the exponent instead.
What Is an Antilogarithm?
The antilogarithm is the inverse of the logarithm. If log_b(y) = x, then antilog_b(x) = y. In plain terms:
antilog_b(x) = b^x
Common Bases
- Base 10 (common log): Used in scientific notation, decibels, and the Richter scale. antilog_10(2) = 100.
- Base e (natural log): Used in calculus, continuous growth/decay, and physics. antilog_e(1) = e = 2.71828.
- Base 2: Used in computer science. antilog_2(8) = 256.
Worked Examples
- antilog_10(4) = 10^4 = 10,000
- antilog_e(2) = e^2 = 7.389
- antilog_2(10) = 2^10 = 1,024
The Log-Antilog Relationship
Logarithm and antilogarithm are inverse operations:
- log_10(1000) = 3, and antilog_10(3) = 1000
- ln(7.389) = 2, and e^2 = 7.389
This calculator shows both directions, so you can verify one from the other.