In Spanish, “coil” is often “bobina” for an electrical winding, “espiral” for a spiral shape, and “resorte” or “muelle” for a spring.
You’ll hear “coil” in Spanish in garages, physics class, sewing rooms, and hardware aisles. The tricky part: English uses one word for several ideas. Spanish tends to pick a different word based on what the coil does and what it’s made of.
This article gives you the right Spanish term by situation, plus pronunciation help and ready-to-use sentences so you can speak with confidence right now.
How To Say Coil In Spanish For Tools, Springs, And Motion
Start by choosing the meaning you need. If you mean a wound wire that carries current, you’re talking about a bobina. If you mean a curved, spiral shape, you want espiral. If you mean a spring that stores tension, Spanish usually goes with resorte or muelle.
Bobina For Electrical Coils And Spools
Bobina covers many “wound” objects: an ignition coil, a solenoid coil, a coil of wire, or even a spool of thread. Context tells the listener which one you mean.
- Pronunciation: boh-BEE-nah
- Sense check: wire wound around a core, or something wound neatly on a reel
Try these sentences:
- La bobina de encendido falló y el motor no arranca.
- Necesito una bobina de alambre de cobre para el proyecto.
- Compra una bobina de hilo negro, por favor.
Espiral For A Spiral Or Coiled Shape
Espiral names the shape: a spiral line, a coiled hose shape, a notebook with spiral binding, or a spiral staircase. If you’re pointing at the form rather than the function, espiral fits well.
- Pronunciation: ehs-pee-RAHL
- Sense check: spiral pattern, curled shape, or spiral-bound item
Useful sentences:
- El cable está en forma de espiral para que no estorbe.
- Prefiero un cuaderno de espiral para tomar apuntes.
- La escalera es de tipo espiral.
Resorte Or Muelle For A Spring
For a spring, Spanish commonly uses resorte in much of Latin America and muelle in Spain, though both words show up across regions. If you mean a metal spring in a pen, mattress, suspension, or latch, these are your go-to terms.
- Resorte pronunciation: reh-SOR-teh
- Muelle pronunciation: MWEH-yeh
Sentences you can reuse:
- El resorte del bolígrafo se salió.
- Este sofá tiene muelles de metal.
- Hay que cambiar el resorte de la suspensión.
Pick The Word By What The Coil Does
If you pause for a second and ask, “What job is this coil doing?”, you’ll land on the Spanish word fast. Here are the most common jobs and the terms that match them.
When It Carries Electricity
Use bobina for a coil in a circuit, a solenoid, an ignition system, or a transformer. In technical writing you may see bobina paired with a spec, like bobina de 12 V or bobina primaria.
When It Acts Like A Spring
Use resorte or muelle for a spring coil that compresses, stretches, or holds tension. If you’re talking about a spring inside a device, Spanish listeners expect one of these words.
When It’s A Spiral Shape
Use espiral when the coil is more about geometry than mechanism: a spiral cord, a spiral notebook, a spiral pattern on a shell, or a spiral staircase.
When It’s A Tube Coil
For coiled tubing, you’ll often hear serpentín, especially for a coiled tube in heating, cooling, or radiators. The word points to a tube that bends back and forth or wraps in loops.
- Pronunciation: sehr-pehn-TEEN
- El serpentín del calentador necesita limpieza.
- Revisaron el serpentín del radiador.
Common Translations And When Each One Sounds Right
The table below gives you a quick way to match “coil” to the Spanish term that people actually use in that setting.
Keep the noun with a short clarifier when you can. A tiny add-on like de encendido or de alambre prevents confusion and keeps your Spanish natural.
| English Meaning | Spanish Term | Best Used When You Mean |
|---|---|---|
| Ignition coil | Bobina de encendido | A car or small-engine ignition component |
| Solenoid coil | Bobina del solenoide | A wound wire that creates a magnetic field |
| Coil of wire | Bobina de alambre | Wire sold on a reel or wound bundle |
| Spool of thread | Bobina de hilo | Sewing thread on a spool |
| Spring coil | Resorte / Muelle | A metal spring that compresses or stretches |
| Spiral shape | Espiral | A spiral form or spiral-bound item |
| Coiled tube | Serpentín | Coiled tubing in heating or cooling |
| To coil (verb) | Enrollar / Enroscar | To wind a cable, or to coil something into loops |
Verbs You’ll Use With Coil
English often says “to coil” as a verb: coil the rope, coil the cable, coil up the hose. Spanish has a few common verbs, and the best one depends on the motion you mean.
Enrollar For Winding Or Rolling Up
Enrollar is a solid default for winding up a cable, cord, rope, or hose into neat loops.
- Pronunciation: ehn-roh-YAHR
- Voy a enrollar la cuerda antes de guardarla.
- Enrolla el cable y ponlo en la caja.
Enroscar For Twisting Around Or Screwing In
Enroscar works when something twists around another object, or when you’re literally screwing something in. It can describe a cord wrapping tightly, or a snake-like motion around a pole.
- Pronunciation: ehn-ROHS-kahr
- La manguera se enroscó alrededor de la rueda.
- Enrosca la tapa hasta que cierre bien.
Doblar En Espiral For “Coil It Into A Spiral”
When you want the shape to be explicit, a short phrase does the job: doblar en espiral or poner en espiral.
- Dóblalo en espiral para que quepa.
- Lo puse en espiral y lo até con una brida.
Coil Terms You’ll Hear In Class And Manuals
If you’re studying electronics or mechanics in Spanish, short pairings show up again and again. You don’t need to memorize a whole textbook; you just need the noun plus one clue word.
- Bobina de inducción: induction coil, often tied to ignition or heating.
- Bobina primaria / bobina secundaria: primary and secondary windings.
- Bobina de un relé: relay coil, the winding that pulls the switch.
- Resorte helicoidal: a helical spring, the classic spiral spring shape.
- Espiral de alambre: a wire spiral, used in crafts or bindings.
When you’re describing what’s wrong, a simple pattern works: La bobina está quemada (the coil is burned out) or El resorte perdió tensión (the spring lost tension). Keep your verbs plain, keep your nouns specific, and you’ll sound natural in labs, shops, and homework write-ups.
Got a photo of the part? Label it as bobina, resorte, espiral, or serpentín, then say one full sentence. That tiny routine trains speed, and it keeps your Spanish tied to real objects in your hands.
Pronunciation Tips That Save You From Awkward Moments
Spanish stress is predictable once you spot it. These cues help you sound clear even if you’re still building speed.
Watch The Stress In Bobina, Resorte, And Serpentín
- Bo-bí-na: the stress lands on bi.
- Re-sor-te: the stress lands on sor.
- Ser-pen-tín: the written accent marks the stressed syllable tín.
Say Muelle With A Smooth “Yeh” Sound
In many accents, ll sounds close to a “y”. Muelle comes out like “mweh-yeh”. Say it in one flow, not two hard beats.
Mini Cheat Sheet For Real Situations
Here’s a second table that pairs common scenes with the term that sounds natural, plus a short phrase you can recycle.
| Situation | Word Choice | Ready Phrase |
|---|---|---|
| Car won’t start, mechanic talk | Bobina de encendido | Hay que revisar la bobina de encendido. |
| Buying wire at a store | Bobina de alambre | Dame una bobina de alambre, por favor. |
| Fixing a pen | Resorte | Se salió el resorte del bolígrafo. |
| Talking about a mattress | Muelle(s) | Este colchón tiene muelles firmes. |
| Spiral notebook for class | Espiral | Necesito un cuaderno de espiral. |
| Cleaning a heater unit | Serpentín | El serpentín está sucio y rinde menos. |
Common Mistakes And How To Avoid Them
Most mix-ups come from picking the first dictionary result without checking the object. These quick checks keep you on track.
Using Espiral For An Ignition Coil
If you say espiral in a car repair chat, many listeners will picture a spiral shape, not an electrical part. Switch to bobina de encendido and you’ll be understood right away.
Using Bobina When You Mean A Spring
Bobina can be “coil” in a technical sense, yet for a physical spring inside a device, resorte or muelle sounds more natural.
Forgetting The Clarifier
A single add-on word saves time. If you say bobina by itself in a sewing setting, it may mean thread. In a car setting, it may mean ignition. Add de hilo, de encendido, or de alambre and you remove doubt.
Practice Drills That Stick
If you want this to feel automatic, practice in short rounds. Keep it light, repeat, then swap contexts.
Drill 1: Three Nouns, One Object
Pick a photo of a coiled cable. Say three lines aloud, each with a different meaning.
- Es una bobina de alambre.
- Tiene forma de espiral.
- Lo voy a enrollar para guardarlo.
Drill 2: Swap Resorte And Muelle
Say the same sentence twice, changing only the noun. This helps you stay flexible across regions.
- El resorte está roto.
- El muelle está roto.
Drill 3: Add A Clarifier Fast
Take the base word and snap on the clarifier without pausing.
- Bobina -> bobina de encendido
- Bobina -> bobina de hilo
- Bobina -> bobina de alambre
One-Page Recap You Can Screenshot
Use this as a final check when you’re writing, translating, or speaking on the fly:
- Electrical coil:bobina
- Spiral shape:espiral
- Spring:resorte or muelle
- Coiled tube:serpentín
- To coil up:enrollar (general), enroscar (twist around)
If you tell me what kind of coil you mean-wire, spring, tube, or shape-I can help you pick the most natural Spanish phrase for that exact context.