DECIBELS LEVELS (DBA) AND SONES RATING CONVERSION CHART
Decibel Level (dBA) Source
0 - Acute threshold of hearing
15 - Threshold of hearing
30 - A whisper
45 - Rustling leaves or soft music
60 - Normal conversation
75 - Average radio or vacuum cleaner
*82 - A very noisy restaurant (LIMIT)
90 - Lawnmower or sawzall
100 - Tractor, Leaf blower or power saw
120 - Chain saw, jack hammer or rock concert
135 - Jet take-off
140 - Gunshot or siren at 100 feet (threshold of pain)
NOTE: Decibel = A measure of loudness, or more specifically pressure. The "A" scale is noise within human hearing range.
* Levels above 82 dBA require hearing protection if within 5 feet
SONES TO DECIBELS CONVERSION
Sones = dB Sones = dB Sones = dB Sones = dB Sones = dB
1.00 28.00 13.00 64.98 25.00 74.41 37.00 80.06 49.00 84.11
2.00 37.99 14.00 66.05 26.00 74.98 38.00 80.45 50.00 84.41
3.00 43.84 15.00 67.05 27.00 75.52 39.00 80.82 51.00 84.69
4.00 47.99 16.00 67.98 28.00 76.05 40.00 81.19 52.00 84.97
5.00 51.21 17.00 68.85 29.00 76.55 41.00 81.54 53.00 85.25
6.00 53.83 18.00 69.68 30.00 77.04 42.00 81.89 54.00 85.52
7.00 56.06 19.00 70.45 31.00 77.51 43.00 82.23 55.00 85.78
8.00 57.98 20.00 71.19 32.00 77.97 44.00 82.56 56.00 86.04
9.00 59.68 21.00 71.90 33.00 78.41 45.00 82.89 57.00 86.30
10.00 61.20 22.00 72.57 34.00 78.85 46.00 83.20 58.00 86.55
11.00 62.57 23.00 73.21 35.00 79.26 47.00 83.51 59.00 86.79
12.00 63.83 24.00 73.82 36.00 79.67 48.00 83.82 60.00 87.03
1.00 28.00 13.00 64.98 25.00 74.41 37.00 80.06 49.00 84.11
2.00 37.99 14.00 66.05 26.00 74.98 38.00 80.45 50.00 84.41
3.00 43.84 15.00 67.05 27.00 75.52 39.00 80.82 51.00 84.69
4.00 47.99 16.00 67.98 28.00 76.05 40.00 81.19 52.00 84.97
5.00 51.21 17.00 68.85 29.00 76.55 41.00 81.54 53.00 85.25
6.00 53.83 18.00 69.68 30.00 77.04 42.00 81.89 54.00 85.52
7.00 56.06 19.00 70.45 31.00 77.51 43.00 82.23 55.00 85.78
8.00 57.98 20.00 71.19 32.00 77.97 44.00 82.56 56.00 86.04
9.00 59.68 21.00 71.90 33.00 78.41 45.00 82.89 57.00 86.30
10.00 61.20 22.00 72.57 34.00 78.85 46.00 83.20 58.00 86.55
11.00 62.57 23.00 73.21 35.00 79.26 47.00 83.51 59.00 86.79
12.00 63.83 24.00 73.82 36.00 79.67 48.00 83.82 60.00 87.03