A radio script is the written manuscript of an audio-only broadcast. It holds everything the listener hears: the words the presenter or actors speak, where music and sound effects sit, where the silence goes, and how a line should be delivered. Knowing how to write a radio script comes down to three things — decide the shape before you write a word, write for the ear rather than the eye, and time every line against the clock. Give yourself an hour for a five-minute link and you will not overrun.
I have watched plenty of new presenters turn a good idea into a rambling fifteen minutes. The fix is almost never talent. It is a structure, a word budget and a read-aloud pass. Here is the process I hand them, and it works whether the show is live from a community station studio or a podcast recorded on a phone.
Table of Contents
What You Need
Before drafting, get six things straight. The more of these you can answer in one line each, the faster the writing goes.
- Format. Live and unscripted, read to air from a teleprompter, fully scripted and prerecorded, or produced as a radio drama with performers. Each one needs a different script.
- Segment length. A fixed slot such as 90 seconds or five minutes, or an open target you set yourself.
- Audience. Who is driving home from work, who is making lunch, who has never heard your show.
- Speaking style. Plain and warm, quick and energetic, or straight and formal for a news bulletin.
- Research sources. Where the facts come from, and who you can call to check a quote.
- Tools. Something to record with, something to time the read with, and something to edit in.
If you are starting from zero, a phone voice recorder, free editing software such as Audacity, a stopwatch and a notebook are enough for a first production. Plenty of community radio shows have been built with exactly that.
Step-by-Step: How to Write a Radio Script
Define the Segment and Audience
Start with one sentence: “This link is for [listener], and it will leave them knowing [one thing].” That single idea is your filter. Any sentence that does not serve it is a candidate for cutting later.
Then set the tone in a phrase you would actually say out loud — “like a mate explaining it on a walk” tells you more than “friendly and informative”. Write the duration and the format at the top of the page so you can see them while you work.
Research and Gather the Right Facts
Collect more than you think you need, then keep less. Write facts as plain notes first, not as script copy — the moment you write a full sentence you tend to keep it, even when it was filler.
Verify everything that can be checked: spellings of names, the exact title of a role, the date, the figure, the wording of a quote. Write numbers the way you will say them out loud, so forty-two per cent becomes “forty-two per cent” on the page. Keep a phone number or a source line next to the draft until the piece has aired.
Build a Simple Script Structure
Every radio script has five moving parts, whatever the genre: a hook that earns attention, enough context that the hook makes sense, the main content, a transition, and a close that tells the listener what just happened and why it mattered.
The genre changes the emphasis rather than the skeleton. A news bulletin leads with the most important item first and keeps the context tight. An interview uses the hook to introduce the guest, then mostly stays quiet. A music show reads the track, gives one line of context and moves on. A talk segment spends longer in the middle. A sponsored read keeps the message in the first and last ten seconds so a listener who zoned out still gets it.
There is no single universal format. UK writers usually work from the BBC scene style, which numbers scenes and uses capitals for sound cues; US radio drama tends to use a source-of-sound column beside the copy. Pick one and be consistent.
Write for the Ear
A listener hears your script once, in passing, while doing something else. That single fact drives every style rule: short sentences, everyday words, active voice, one idea per sentence.
- Keep sentences to roughly fifteen words. Cut anything over twenty-five.
- Use contractions. Nobody says “do not” out loud.
- Prefer “the council said” to “it was said by the council”.
- Give the title before the name: “the health secretary, Steve Jones”.
- Round figures to the nearest sensible number and drop the decimals.
- Avoid semicolons and colons — nobody can hear them.
- Avoid word piles that trip the tongue, especially with unfamiliar place names.
Conversational does not mean sloppy. Radio writing is plain, not lazy.
Add Time, Links, and Delivery Cues
Mark up the script the way a producer needs it: timings in brackets down the margin, a line where the music bed starts and stops, pronunciation spelled out phonetically, and an emphasis mark only where it genuinely changes the meaning.
Time your script by word count. Broadcast delivery runs at roughly 130 to 150 words a minute, and most people read slower than they think because they are also acting.
| Slot length | Words at 140 wpm | Words at 150 wpm |
|---|---|---|
| 10 seconds | 23 | 25 |
| 30 seconds | 70 | 75 |
| 60 seconds | 140 | 150 |
| 2 minutes | 280 | 300 |
| 5 minutes | 700 | 750 |
So a 30-second radio script is roughly 70 to 75 words, give or take a handful for a slow read or a pause for effect. Write to the lower figure if you are new to the microphone, and leave a little room for a stumble.
Keep cues to the ones everyone understands: MUSIC UP, MUSIC UNDER, SFX, STING, and silence marked in brackets. If a cue gets dropped in production, the words around it still stand up — write copy that works with or without it.
How to Write a Radio Script That Sounds Natural
Read the draft out loud at normal speed, standing up, with your phone recording. Almost every stiff line announces itself in the first sentence — you run out of breath, you stumble, or you hear yourself sounding like a manual.
Then fix in this order: breath problems first, then repeated words, then anything factually missing, then overlength. Cutting ten words matters more than rewording ten words.
Do it twice. The second read is much faster than the first because you have already met the difficult sentences.
Rehearse and Deliver It
For live work, read the script through once silently, then once aloud, then make yourself a one-line card per beat. Bullet points let you recover if a line goes wrong on air; a full sheet in front of you at speed just invites a stumble.
For a prerecorded segment, record a scratch version on the phone first. Listen back and mark the second hand where you trip, where you get too quiet, where the pace drops. Record the real take with those marks on a second page.
Keep the delivery conversational either way. A script read at the same flat speed throughout is the giveaway that nobody spoke it.
Common Mistakes to Avoid at Each Step
- Defining too late. If you start writing before you know the duration, every sentence seems reasonable and the piece runs long.
- Scripting everything word for word. Fine for drama and news, tiring for a chat show. Know which of your segments need full copy.
- Writing with your eyes. Long subordinated clauses read fine and sound terrible.
- Marking up more than the producer needs. Every extra bracket is another thing to read on air.
- Skipping the read-aloud pass. This is the step that catches nearly every problem before broadcast.
- Leaving no room to breathe. Scripts written with no pauses leave the presenter sounding breathless by the final line.
Common Mistakes
Here are the errors I see most often in new scripts, and what to do about each one.
| Mistake | The fix |
|---|---|
| Too formal | Read the line as if you were telling a friend. If it sounds like a contract, rewrite it. |
| Too much information | Pick one point and cut the rest, or split it across two weeks. |
| Links nobody can follow | Say the address or the short code in full, slowly, and repeat it once at the end. |
| No delivery cues | Mark only what changes the performance: timing, music, pronunciation, emphasis. |
| Timing ignored | Count the words against the slot before you record, then trim the last paragraph first. |
| No plan B for live changes | Write a fallback version of the link that works without the interview or without the news item. |
A few habits worth building: write for the ear above all else, keep a rough word budget in view the whole time you draft, and let the listener have one clear action at the end. And preserve your natural voice — the script is scaffolding, not a performance you deliver line by line.
Frequently Asked Questions
How long should a radio script be?
Work backwards from your slot. At a normal on-air pace of about 140 words a minute, a 60-second read is roughly 140 words, two minutes is about 280, and five minutes is around 700. Write to the lower number if you are new to the microphone, because most people read slower than they expect. Add roughly 10 percent if music or pauses are part of the piece.
Should radio scripts be read word for word?
It depends entirely on the format. News bulletins, drama and sponsored reads are written to be read word for word. A chat show is usually better served by bullet points and an outline, because a rigid sheet makes presenters sound stiff and makes recovery hard when a guest goes off script. Interview links work best as an outline too, so you can follow the conversation rather than the page.
How do I write a radio show opener?
Use a five-part formula: welcome the listener, name yourself and the show, say what it is in one sentence, explain why it is worth listening to now, then tease the first item so they know something specific is coming. Keep the whole opener under 30 seconds. Say where you are and what the weather is doing if it affects the day your listeners are about to have.
How should I prepare a script for a live interview?
Write an outline, not a script. Research two or three questions, note the facts and figures you want to hit, and mark the question you most want answered. Keep the paper minimal so your eyes stay on the guest. Decide in advance which topic you will drop if the conversation stalls, and always close with a summary the listener heard clearly.
How do I fit a radio script into a fixed time?
Count the words first, then trim from the end of the body rather than the middle. If you are over, cut the second point before the first, and cut examples before facts. Read the trimmed draft aloud and time it on your phone before recording. Leave about ten percent headroom so a stumble does not push you over the slot.
Can I use AI to help write a radio script?
Use it as a drafting partner, not a broadcast machine. It is useful for a first structure, for turning research notes into readable sentences, and for spotting a passage that buries its point. You still own every fact, every quotation and every name, and you must read the result aloud because generated copy often runs long and sounds stiff. Never let it invent a quote or a statistic.
Conclusion
To write a radio script that works, do four things in order: fix the length and the listener, write a hook that earns them, build the main points with a word budget against the clock, then read it aloud and cut until it fits. Everything else — format, cues, rehearsal — sits on top of those four steps. Start with a five-minute link and a notepad, not a microphone.
