Log and Antilog - Introduced by John Napier

Logs are ways of expressing a number, it has a base number raised to power, logs and antilog are important components of mathematics and used in mathematical equations often, use this online calculator to calculate your log and antilog problems.

Log and Antilog

Computation of Log

  • Enter the number

  • Select the Base value


  • Log value

Computation of Anti-Log

  • Enter the number(to the power of 10)


  • Antilog value

Formula Used:
Computation of log(logbx):
logbx = y implies by = x.

b = base,
y = number,
x = log value.

Computation of Antilog:
y = 10x
x = number,
y = antilog value.