Category:Logarithmic scales of measurement

E

• Equal temperaments (2 C, 25 P, 3 F)

U

• Units of level (14 P)

• Logarithmic scale

A

• Absorbance
• American wire gauge
• Apparent magnitude

C

• Convenient number

D

• DBc
• DBFS
• DBm
• DBrn
• DBZ (meteorology)
• Decibel watt

E

• E series of preferred numbers
• Effective radiated power
• Energy class

F

• Logarithmic frequency ratio
• F-number

L

• Level (logarithmic quantity)
• Log reduction
• Log–log plot

M

• Magnitude (astronomy)
• Moment magnitude scale

O

• Order of magnitude

P

• Palermo Technical Impact Hazard Scale
• PH
• PKa
• Preferred number

R

• Renard series
• Richter scale

S

• Slide rule scale