Electric strings will damage an acoustic guitar and sound terrible
No, you should not put electric guitar strings on an acoustic guitar. Electric strings are thinner, have less tension, and will not vibrate the acoustic body properly. The result is a dull, quiet sound that defeats the purpose of owning an acoustic. More importantly, the lower tension can warp the neck and damage the bridge over time because acoustic guitars are built to handle the much higher string tension that acoustic strings provide.
An acoustic guitar's body is designed to amplify vibration naturally—that is how it produces volume without a pickup or amplifier. Electric strings do not vibrate with enough force to make the soundboard resonate the way it should. You will lose the brightness, sustain, and projection that makes an acoustic sound like an acoustic.
Key Takeaways
- Electric strings are thinner and have lower tension than acoustic strings, so they will not vibrate the acoustic body enough to produce proper sound.
- The lower tension can bend the acoustic neck forward and damage the bridge over months of use, requiring expensive repairs.
- Acoustic guitars need the higher tension of acoustic strings to work as designed—the body amplifies that vibration naturally.
- If you want to switch between electric and acoustic playing, buy a second guitar rather than swapping strings between them.
How acoustic and electric strings are built differently
The core difference is gauge—the thickness of the string—and tension, which is how hard the string pulls on the neck. Acoustic strings are thicker overall. A typical acoustic set runs .013 to .056 inches across the six strings. Electric strings are usually .009 to .046 inches. That half-millimeter difference on the thicker strings matters a lot.
Acoustic strings are also wound differently. They use bronze or phosphor bronze wrap, which is heavier and rougher. This weight helps the string vibrate the wooden soundboard. Electric strings use nickel or nickel-plated steel, which is smoother and lighter. The wrap is designed to work with a pickup that reads magnetic vibration, not with a wooden body that needs physical force to resonate.
Because acoustic strings are thicker and heavier, they naturally pull harder on the neck and bridge. An acoustic guitar's neck is reinforced to handle that pull. An electric guitar neck is not—it is thinner and more flexible because electric strings do not demand as much. If you reverse the setup, the acoustic neck will bend under the weight of proper acoustic strings, and the electric neck will not hold acoustic strings tight enough.
What happens to the guitar when you use the wrong strings
In the short term, you will notice the sound is thin and quiet. The strings will not ring out. The acoustic body will not resonate because the vibration is too weak. You might think the guitar is broken when really the strings are just not doing their job.
Over weeks and months, the low tension of electric strings will let the acoustic neck bow forward. This is called neck relief—the neck develops a curve instead of staying straight. Once this happens, the action (the height of the strings above the fretboard) becomes unplayable, and fixing it requires a luthier, which costs $200 to $500 or more. The bridge can also lift or crack because it is no longer under the right amount of tension.
Conversely, if you put acoustic strings on an electric guitar, the high tension can bend the neck backward and crack the headstock where the tuning pegs attach. Electric guitar necks are not built to handle that much pull.
Why the body design matters
An acoustic guitar is a hollow wooden box. The strings vibrate, and that vibration travels through the bridge into the soundboard (the top of the box). The soundboard amplifies the vibration and projects it outward as sound. The thicker, heavier acoustic strings vibrate with more force, which makes the soundboard move more, which makes the guitar louder.
Electric strings vibrate with less force because they are thinner and lighter. When you put them on an acoustic, the soundboard barely moves. The guitar sounds like you are playing with your hand over the strings. You lose all the natural amplification that makes an acoustic guitar useful without a microphone or amplifier.
An electric guitar does not rely on the body to amplify sound. A pickup under the strings reads the magnetic vibration and sends it to an amplifier. The body can be solid wood or even plastic—it does not matter. The strings only need to vibrate enough for the pickup to sense them. That is why electric strings are thinner: they do the job they are designed for.
What to do if you want to play both electric and acoustic
The practical answer is to own both guitars. A used acoustic and a used electric can both be found for $100 to $300 if you are patient. Swapping strings between guitars is not worth the risk to either instrument, and it is also a hassle—restringing takes 15 to 30 minutes each time.
If budget is tight, buy one good guitar and play it as is. If you already own an acoustic and want to try electric, a cheap solid-body electric is a better investment than ruining your acoustic. If you own an electric and want to try acoustic, the same logic applies.
Some people use a capo or lighter touch to make an electric guitar sound more like an acoustic, but that is a workaround, not a solution. The tone will never be the same because the body and strings are fundamentally different tools.
How to choose the right strings for your guitar
Check the headstock or the original packaging to see what type of guitar you have. Then buy strings labeled for that type. Acoustic strings say "acoustic" on the package. Electric strings say "electric." Do not buy a mixed set or a generic set—the label matters because it tells you the gauge and wrap material are right for that guitar.
If you are not sure what gauge your guitar uses, look at the thinnest string (the high E string). Measure it with a caliper or compare it to a ruler. Most acoustics use .013 or .012 as the high string. Most electrics use .009 or .010. That one number tells you which direction to go.
When you buy new strings, the package will list the gauge of all six strings. Match that to what your guitar came with, or ask a music store employee to help you find the right set. Putting the wrong type on will not break the guitar when ready, but it will cause problems over time.
Frequently Asked Questions
Will electric strings hurt my acoustic guitar right away?
Not when ready. You can play for a few hours or even a few days without damage. But over weeks, the low tension will start to bend the neck forward. The longer you leave them on, the worse the damage gets. Replace them with acoustic strings as soon as you realize the mistake.
Can I use acoustic strings on an electric guitar?
Technically yes, but you should not. The high tension will bend the electric neck backward and can crack the headstock. The thick strings will also feel stiff and hard to play, and the pickup may not read them cleanly. Stick with electric strings on electric guitars.
Why do electric strings cost less than acoustic strings?
Electric strings are thinner and use less material, so they are cheaper to make. Acoustic strings use heavier bronze wrap and thicker gauges, which costs more. The price difference reflects the material and construction, not the quality—each type is the right choice for its guitar.
What if I only have electric strings and need to play my acoustic right now?
You can use them temporarily for an hour or two, but do not leave them on overnight or for days. The sound will be poor, but temporary use will not damage the guitar. As soon as you can, buy the correct acoustic strings and swap them in.
Do I need to change my technique when I switch between acoustic and electric strings?
Yes, slightly. Acoustic strings are thicker and require more finger strength. Your fingers will hurt more at first if you are used to electric strings. Electric strings are easier on the fingers but require lighter touch to avoid buzzing. Both are normal—your hands adjust after a few days of playing.