Borg Scale of Perceived Exertion

Original Borg scale:

• 6 Sitting in chair, resting
• 7 Very, very light
• 8
• 9 Very light
• 10
• 11 Fairly light
• 12
• 13 Somewhat hard
• 14
• 15 Hard
• 16
• 17 Very hard
• 18
• 19 Very, very hard
• 20

Modified Borg scale:

• 0 Nothing at all/rest
• 0.3
• 0.5 Extremely weak Just noticeable
• 0.7
• 1 Very weak/Really easy
• 1.5
• 2 Weak Light/Easy
• 2.5
• 3 Moderate
• 4
• 5 Strong Heavy/Hard
• 6
• 7 Very strong/Really hard
• 8
• 9
• 10 Extremely strong “Maximal”