How Long Does It Take to Crack Passwords?

The table below is calculated by assuming 100,000 encryption operations per second; this is a plausible number for a desktop PC today.

10 26 36 52 68 94
PW length number of digits number of lower case letters letters and digits mixed case letters single case letters with digits, symbols and punctuation all the displayable ASCII characters including mixed case letters
3 0.01 seconds 0.18 seconds 0.47 seconds 1.41 seconds 3.14 seconds 8.3 seconds
4 0.10 seconds 4.57 seconds 16.8 seconds 1.22 minutes 3.56 minutes 13.0 minutes
5 1.00 seconds 1.98 minutes 10.1 minutes 1.06 hours 4.04 hours 20.4 hours
6 10.0 seconds 51.5 minutes 3.74 minutes 13.7 days 2.26 months 2.63 months
7 1.67 minutes 22.3 hours 9.07 days 3.91 months 2.13 years 20.6 years
8 16.7 minutes 24.2 days 10.7 months 17.0 years 1.45 centuries 1.93 millennia
9 2.78 hours 1.72 years 32.2 years 8.82 centuries 9.86 millennia 182 millennia
10 1.16 days 44.8 years 1.16 millennia 45.8 millennia 670 millennia 17,079 millennia
11 11.6 days 11.6 centuries 41.7 millennia 2,384 millennia 45,582 millennia 1,605,461 millennia
12 3.81 months 30.3 millennia 1,503 millennia 123,946 millennia 3,099,562 millennia 150,913,342 millennia
Hosted by www.Geocities.ws

1