I found this online a while back. Thought I would share.

D&D Stats Explained

• Strength
  • 1 (–5): Morbidly weak, has significant trouble lifting own limbs
  • 2-3 (–4): Needs help to stand, can be knocked over by strong breezes
  • 4-5 (–3): Knocked off balance by swinging something dense
  • 6-7 (–2): Difficulty pushing an object of their weight
  • 8-9 (–1): Has trouble even lifting heavy objects
  • 10-11 (0): Can literally pull their own weight
  • 12-13 (1): Carries heavy objects for short distances
  • 14-15 (2): Visibly toned, throws small objects for long distances
  • 16-17 (3): Carries heavy objects with one arm
  • 18-19 (4): Can break objects like wood with bare hands
  • 20-21 (5): Able to out-wrestle a work animal or catch a falling person
  • 22-23 (6): Can pull very heavy objects at appreciable speeds
  • 24-25 (7): Pinnacle of brawn, able to out-lift several people
• Dexterity
  • 1 (–5): Barely mobile, probably significantly paralyzed
  • 2-3 (–4): Incapable of moving without noticeable effort or pain
  • 4-5 (–3): Visible paralysis or physical difficulty
  • 6-7 (–2): Significant klutz or very slow to react
  • 8-9 (–1): Somewhat slow, occasionally trips over own feet
  • 10-11 (0): Capable of usually catching a small tossed object
  • 12-13 (1): Able to often hit large targets
  • 14-15 (2): Can catch or dodge a medium-speed surprise projectile
  • 16-17 (3): Able to often hit small targets
  • 18-19 (4): Light on feet, able to often hit small moving targets
  • 20-21 (5): Graceful, able to flow from one action into another easily
  • 22-23 (6): Very graceful, capable of dodging a number of thrown objects
  • 24-25 (7): Moves like water, reacting to all situations with almost no effort
• Constitution
  • 1 (–5): Minimal immune system, body reacts violently to anything foreign
  • 2-3 (–4): Frail, suffers frequent broken bones
  • 4-5 (–3): Bruises very easily, knocked out by a light punch
  • 6-7 (–2): Unusually prone to disease and infection
  • 8-9 (–1): Easily winded, incapable of a full day’s hard labor
  • 10-11 (0): Occasionally contracts mild sicknesses
  • 12-13 (1): Can take a few hits before being knocked unconscious
  • 14-15 (2): Able to labor for twelve hours most days
  • 16-17 (3): Easily shrugs off most illnesses
  • 18-19 (4): Able to stay awake for days on end
  • 20-21 (5): Very difficult to wear down, almost never feels fatigue
  • 22-23 (6): Never gets sick, even to the most virulent diseases
  • 24-25 (7): Tireless paragon of physical endurance
• Intelligence
  • 1 (–5): Animalistic, no longer capable of logic or reason
  • 2-3 (–4): Barely able to function, very limited speech and knowledge
  • 4-5 (–3): Often resorts to charades to express thoughts
  • 6-7 (–2): Often misuses and mispronounces words
  • 8-9 (–1): Has trouble following trains of thought, forgets most unimportant things
  • 10-11 (0): Knows what they need to know to get by
  • 12-13 (1): Knows a bit more than is necessary, fairly logical
  • 14-15 (2): Able to do math or solve logic puzzles mentally with reasonable accuracy
  • 16-17 (3): Fairly intelligent, able to understand new tasks quickly
  • 18-19 (4): Very intelligent, may invent new processes or uses for knowledge
  • 20-21 (5): Highly knowledgeable, probably the smartest person many people know
  • 22-23 (6): Able to make Holmesian leaps of logic
  • 24-25 (7): Famous as a sage and genius
• Wisdom
  • 1 (–5): Seemingly incapable of thought, barely aware
  • 2-3 (–4): Rarely notices important or prominent items, people, or occurrences
  • 4-5 (–3): Seemingly incapable of forethought
  • 6-7 (–2): Often fails to exert common sense
  • 8-9 (–1): Forgets or opts not to consider options before taking action
  • 10-11 (0): Makes reasoned decisions most of the time
  • 12-13 (1): Able to tell when a person is upset
  • 14-15 (2): Can get hunches about a situation that doesn’t feel right
  • 16-17 (3): Reads people and situations fairly well
  • 18-19 (4): Often used as a source of wisdom or decider of actions
  • 20-21 (5): Reads people and situations very well, almost unconsciously
  • 22-23 (6): Can tell minute differences among many situations
  • 24-25 (7): Nearly prescient, able to reason far beyond logic
• Charisma
  • 1 (–5): Barely conscious, probably acts heavily autistic
  • 2-3 (–4): Minimal independent thought, relies heavily on others to think instead
  • 4-5 (–3): Has trouble thinking of others as people
  • 6-7 (–2): Terribly reticent, uninteresting, or rude
  • 8-9 (–1): Something of a bore or makes people mildly uncomfortable
  • 10-11 (0): Capable of polite conversation
  • 12-13 (1): Mildly interesting, knows what to say to the right people
  • 14-15 (2): Interesting, knows what to say to most people
  • 16-17 (3): Popular, receives greetings and conversations on the street
  • 18-19 (4): Immediately likeable by many people, subject of favorable talk
  • 20-21 (5): Life of the party, able to keep people entertained for hours
  • 22-23 (6): Immediately likeable by almost everybody
  • 24-25 (7): Renowned for wit, personality, and/or looks