Online Calculators > Math Calculators > Log Base 10 Calculator

Log Base 10 Calculator

Log Base 10 Calculator to calculate the log base 10 of a number. The log base 10 of x is the base 10 logarithm of x which can be written as log10(x) or lg(x). Enter a number below, and the Log10 Calculator will calculate the result instantly.

Log10 Calculator

log10
Result

What is log base 10

The logarithm base 10 of a number is its logarithm to the base of 10 where lg(1) = 0.

Log Base 10

Following is log base 10 table that shows lg(1) up to lg(100).

x log10(x)
10
20.301029995664
30.47712125472
40.602059991328
50.698970004336
60.778151250384
70.845098040014
80.903089986992
90.954242509439
101
111.04139268516
121.07918124605
131.11394335231
141.14612803568
151.17609125906
161.20411998266
171.23044892138
181.2552725051
191.27875360095
201.30102999566
211.32221929473
221.34242268082
231.36172783602
241.38021124171
251.39794000867
261.41497334797
271.43136376416
281.44715803134
291.4623979979
301.47712125472
311.49136169383
321.50514997832
331.51851393988
341.53147891704
351.54406804435
361.55630250077
371.56820172407
381.57978359662
391.59106460703
401.60205999133
411.61278385672
421.6232492904
431.63346845558
441.64345267649
451.65321251378
461.66275783168
471.67209785794
481.68124123738
491.69019608003
501.69897000434
511.7075701761
521.71600334363
531.7242758696
541.73239375982
551.74036268949
561.74818802701
571.75587485567
581.76342799356
591.77085201164
601.77815125038
611.78532983501
621.7923916895
631.79934054945
641.80617997398
651.81291335664
661.81954393554
671.8260748027
681.83250891271
691.83884909074
701.84509804001
711.85125834872
721.85733249643
731.86332286012
741.86923171973
751.87506126339
761.88081359228
771.88649072517
781.89209460269
791.89762709129
801.90308998699
811.90848501888
821.91381385238
831.91907809238
841.92427928606
851.92941892571
861.93449845124
871.93951925262
881.94448267215
891.94939000664
901.95424250944
911.95904139232
921.96378782735
931.96848294855
941.9731278536
951.97772360529
961.98227123304
971.98677173427
981.99122607569
991.9956351946
1002
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