Rex says
The fast lane for the math you almost remember from school. Type the numbers, get the answer, move on with your day.
Try a scenario
Click to load — tweak from there.Inputs
Result
log_b(x)
3.000000
Psst — share this and help Rex grow
One click, a permanent link with your numbers baked in.
How to use this
- 1Enter x.
- 2Enter base.
- 3Read your log_b(x) on the right — it updates as you type.
- 4Hit Share to keep the scenario or send it to someone.
About this calculator
Computes the logarithm of x to any base b using change of base.