It depends how close your ears are to the lawnmower.
Answer
According to the chart at the link provided below an average lawnmower puts out about 107 decibels at a three foot distance.
A lawn mower at 3 ft distance can have a sound pressure level of L = 100 dBSPL. Never forget to tell the distance of the measuring microphone from the sound source, because the closer you are the louder it is. The sound pressure level decreases by 6 dB per doubling of distance from the source to 1/2 (50 %) of the sound pressure initial value. The sound pressure decreases inversely as the distance increases with 1/r from the sound source.
A loud shout can range from 80 to 90 decibels, which is similar to the noise level of a lawnmower or heavy traffic.
A normal conversation typically ranges from about 60 to 70 decibels, not 80. Sounds at 80 decibels are comparable to heavy traffic or a lawnmower, which is significantly louder than average speech. Prolonged exposure to sounds at or above 85 decibels can potentially lead to hearing damage.
20 decibels
207 decibels.
70-100 decibels
20 to 50 decibels (dB).
85 decibels maximum.
in what
The Yamaha YZ125 typically produces noise levels around 85 to 95 decibels when revved at full throttle. This level of sound can vary depending on factors such as exhaust modifications and the condition of the bike. For comparison, 85 decibels is roughly equivalent to heavy traffic noise, while 95 decibels is comparable to a lawnmower. It's important to note that prolonged exposure to sounds above 85 decibels can lead to hearing damage.
130 decibels -140 decibels close up maybe louder though
Roughly 150-160 decibels.
50 phons (decibels) is equivalent to 2 sones.