Online Logarithm Equation Calculator
Solve log_base(x) = y for x (x = base^y) or for the exponent. Common and natural log supported.
Solve log_base(x) = y → x = base^y.
Frequently Asked Questions
- How do you solve log_b(x) = y?
- x = b^y. So if log₂(x) = 3, then x = 2³ = 8.
- Is this tool free?
- Yes. All tools on QuickFreeTools are free with no signup.
Related Calculators
Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit and Fahrenheit to Celsius instantly. Free temperature converter.
Tip Calculator
Calculate tip and split the bill. Enter bill amount, tip percentage, and number of people.
Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals to numbers. Supports 1–3999.
Combinations Calculator
Calculate C(n,r) — the number of ways to choose r items from n without order. Uses n!/(r!(n-r)!).
Combinations with Replacement Calculator
Calculate the number of ways to choose r items from n with repetition allowed. Formula: C(n+r-1, r).
Even Permutations Calculator
Count how many permutations of n objects are even (expressible as an even number of swaps). For n ≥ 2, equals n!/2.