Export (0) Print
Expand All
ABS
AND
ASC
COS
DAY
DDB
EXP
FV
IF
INT
LEN
LN
LOG
MAX
Me
MID
MIN
MOD
NOT
IS
NPV
ODD
OR
PI
PMT
PV
SIN
SLN
SUM
SYD
T
TAN
VAR
Expand Minimize

LOG

Archived content. No warranty is made as to technical accuracy. Content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.

Returns the logarithm of a number to the base you specify.

Syntax

LOG ( number ,base)

Number is the positive real number for which you want the logarithm.

Base is the base of the logarithm. If base is omitted, it is assumed to be 10.

Example

Formula

Description (Result)

=LOG(10)

Logarithm of 10 (1)

=LOG(8, 2)

Logarithm of 8 with base 2 (3)

=LOG(86, 2.7182818)

Logarithm of 86 with base e (4.454347)

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft