Relief

Nut

Action

Intonation

Setup

Pocket RoadyTool Stack Deluxe

Power

Intonation Assistant

Let’s get your guitar in tune with itself.

Real-time Hz tuning, open string lock-in, and bridge-specific saddle instructions for TOM, Fender, Tele, and Floyd Rose — all in your browser.

No download needed · Works in any browser

Step 1 Select Your Bridge TAP TO START

Tune-O-Matic Bridge — select to set intonation

TUNE-O-MATIC
(Gibson Style)

Fender 6-Saddle Bridge — select to set intonation

6-SADDLE STRAT
(Fender Style)

Tele 3-Saddle Bridge — select to set intonation

TELE 3-SADDLE
(3 Shared Saddles)

Floyd Rose Bridge — select to set intonation

FLOYD ROSE
(Locking Tremolo)

Step 2 Tune & Analyze PENDING

Standard 440

½ Step Down Eb tuning

⚡ Stabilize: Tune all strings to pitch to ensure proper neck tension 🎯 Focus: Intonate one string at a time — always retune after every move

Floyd Rose — the saddles slide, they don't screw. You'll loosen each saddle's lock screw and move it by hand: back toward the tail if the note is sharp, forward toward the neck if it's flat. Slacken the string and unlock the nut first, then relock and use the fine tuners to fine-tune at the end.

↓ Select String

Mic offline

Low E82.41 Hz

A110.00 Hz

D146.83 Hz

G196.00 Hz

B246.94 Hz

High E329.63 Hz

Step 3 Fix Intonation PENDING

Select a string to view its adjustment instructions

Low E—

A—

D—

G—

B—

High E—

Select a string above

Adjust direction —

Pro tip: After every saddle adjustment, go back to Step 2, re-tune that string to pitch, then capture fresh open string and fretted readings. Repeat until the difference reaches zero.

💡 Why is my guitar hard to intonate? ∨

🎸 Fresh Strings

Fresh strings stretch and settle for a few days. Recheck intonation after your first few playing sessions on a new set.

📐 High Action

High action makes fretted notes sharper. Lowering action slightly can help balance your intonation across the neck.

🔩 Nut Binding

If one string keeps going sharp after tuning, check your nut slot for binding. A stuck string springs sharp when released.

🎵 The G-String Mystery

The G string is almost always the hardest to intonate due to its core-to-wrap ratio. If it won't settle, check nut binding and saddle condition first.

⚙️ Saddle & Bridge Wear

Worn saddle grooves cause intonation drift. Smooth, clean grooves help saddles move and seat correctly during adjustment.

🔧 Truss Rod Changes

Adjusting neck relief changes fret height and affects intonation. Always recheck after any truss rod tweaks.

🌡️ Temperature & Humidity

Cold weather shrinks wood and causes neck back-bow, pulling fretted notes sharp. Guitars need time to stabilize when moving between environments.

💪 Heavy Playing Style

If you bend strings hard or play with heavy attack, you may need slightly shorter intonation to compensate for your playing style.

🎸 Fret Wear

Worn frets make fretted notes flatter and less consistent. A fret dress by a qualified tech can restore accuracy across the board.

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Keep Going

New to setting intonation, or just want the why behind the numbers? These walk you through it at your own pace — no rush.

Core Intonation GuideHow intonation works on any guitar Acoustic Saddle CompensationFor flat-top acoustics with a fixed saddle