Natural Log Calculator to calculate the natural logarithm of a number. The natural logarithm of x is the base e logarithm of x which can be written as ln(x) or loge(x). Enter a number below, and the ln Calculator will calculate the result instantly.
ln Calculator |
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The natural logarithm of a number is its logarithm to the base of e where e is approximately 2.718281828459. The natural logarithm of e, ln(e) = 1, because e1 = e, and the natural logarithm of 1 is 0, because e0 = 1.
Following is natural log table that shows ln(1) up to ln(100) calculated by our natural logarithm calculator.
| x | ln(x) |
|---|---|
| 1 | 0 |
| 2 | 0.69314718056 |
| 3 | 1.09861228867 |
| 4 | 1.38629436112 |
| 5 | 1.60943791243 |
| 6 | 1.79175946923 |
| 7 | 1.94591014906 |
| 8 | 2.07944154168 |
| 9 | 2.19722457734 |
| 10 | 2.30258509299 |
| 11 | 2.3978952728 |
| 12 | 2.48490664979 |
| 13 | 2.56494935746 |
| 14 | 2.63905732962 |
| 15 | 2.7080502011 |
| 16 | 2.77258872224 |
| 17 | 2.83321334406 |
| 18 | 2.8903717579 |
| 19 | 2.94443897917 |
| 20 | 2.99573227355 |
| 21 | 3.04452243772 |
| 22 | 3.09104245336 |
| 23 | 3.13549421593 |
| 24 | 3.17805383035 |
| 25 | 3.21887582487 |
| 26 | 3.25809653802 |
| 27 | 3.295836866 |
| 28 | 3.33220451018 |
| 29 | 3.36729582999 |
| 30 | 3.40119738166 |
| 31 | 3.43398720449 |
| 32 | 3.4657359028 |
| 33 | 3.49650756147 |
| 34 | 3.52636052462 |
| 35 | 3.55534806149 |
| 36 | 3.58351893846 |
| 37 | 3.61091791264 |
| 38 | 3.63758615973 |
| 39 | 3.66356164613 |
| 40 | 3.68887945411 |
| 41 | 3.7135720667 |
| 42 | 3.73766961828 |
| 43 | 3.76120011569 |
| 44 | 3.78418963392 |
| 45 | 3.80666248977 |
| 46 | 3.82864139649 |
| 47 | 3.85014760171 |
| 48 | 3.87120101091 |
| 49 | 3.89182029811 |
| 50 | 3.91202300543 |
| 51 | 3.93182563272 |
| 52 | 3.95124371858 |
| 53 | 3.97029191355 |
| 54 | 3.98898404656 |
| 55 | 4.00733318523 |
| 56 | 4.02535169074 |
| 57 | 4.04305126783 |
| 58 | 4.06044301055 |
| 59 | 4.07753744391 |
| 60 | 4.09434456222 |
| 61 | 4.11087386417 |
| 62 | 4.12713438505 |
| 63 | 4.14313472639 |
| 64 | 4.15888308336 |
| 65 | 4.1743872699 |
| 66 | 4.18965474203 |
| 67 | 4.20469261939 |
| 68 | 4.21950770518 |
| 69 | 4.2341065046 |
| 70 | 4.24849524205 |
| 71 | 4.26267987704 |
| 72 | 4.27666611902 |
| 73 | 4.29045944115 |
| 74 | 4.3040650932 |
| 75 | 4.31748811354 |
| 76 | 4.33073334029 |
| 77 | 4.34380542185 |
| 78 | 4.35670882669 |
| 79 | 4.36944785247 |
| 80 | 4.38202663467 |
| 81 | 4.39444915467 |
| 82 | 4.40671924726 |
| 83 | 4.4188406078 |
| 84 | 4.43081679884 |
| 85 | 4.44265125649 |
| 86 | 4.45434729625 |
| 87 | 4.46590811865 |
| 88 | 4.47733681448 |
| 89 | 4.48863636973 |
| 90 | 4.49980967033 |
| 91 | 4.51085950652 |
| 92 | 4.52178857705 |
| 93 | 4.53259949315 |
| 94 | 4.54329478227 |
| 95 | 4.5538768916 |
| 96 | 4.56434819147 |
| 97 | 4.5747109785 |
| 98 | 4.58496747867 |
| 99 | 4.59511985013 |
| 100 | 4.60517018599 |
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