Guitar Finger Numbers – How to Number Your Fretting Hand Correctly

What Numbers Are Assigned to the Fingers on Guitar?

In this short guitar lesson, we look at the finger numbering system for the hand that plays on the guitar neck. For right-handed guitarists this is the left hand, for left-handed players it’s the right hand.

Understanding finger numbers is essential: you’ll see them in guitar lessons, scale diagrams, chord boxes, TAB and classical notation. Many students think they “kind of know it”, but still make mistakes when reading fingerings – which slows down their progress.

Why Guitar Finger Numbers Matter

When a teacher or book says “play it with finger 3” or “use 1–2–4 on this pattern”, they’re not being picky for no reason. Correct finger numbering:

makes scales and riffs easier and faster to play
helps you build efficient technique instead of bad habits
makes it much easier to read classical scores and advanced TAB
lets you communicate clearly with teachers and other musicians

The more complex the riff, solo or chord progression, the more important the correct fingering becomes.

Guitar Finger Numbering System

Below is the standard numbering for the fretting hand on guitar:

Index finger = 1
Middle finger = 2
Ring finger = 3
Pinky = 4
Thumb = T (from Thumb)

For right-handed guitarists this refers to the left hand.
For left-handed guitarists it’s exactly the same system, only mirrored to the right hand.

This notation is used in method books, exercises, chord diagrams and classical scores to show which finger you should use on each note.

Where You’ll See Finger Numbers (TAB, Chords, Classical Scores)

Finger numbers are often written:

under or above TAB to suggest the most efficient fingering
next to chord boxes to show which finger goes on which string/fret
above notes in classical notation so you can read music faster and avoid guessing

Once you’re comfortable with this system, you’ll be able to look at a riff, see the finger numbers and immediately feel how it sits under your hand.

Common Mistakes With Finger Numbering

Typical problems I see in students:

using only fingers 1 and 2 and ignoring 3 and 4
mixing up finger 3 and 4 when reading TAB or scores
changing fingering every time instead of sticking to one efficient pattern
never using the thumb indication T when it’s actually needed (e.g. certain Hendrix-style grips)

Correcting these early will save you years of frustration later.

Take Your Guitar Playing To The Next Level!

If you like clear, practical guitar and music coaching instead of random YouTube tips, you need structure. My guitar books and coaching programs give you that structure, so you can finally make real progress and level up your playing.