Quick answer
Yes, radio advertising works, and the evidence for it is solid. UK studies show radio returns an average of £7.70 in revenue for every £1 spent, it lifts ad awareness and brand trust, and it still reaches most of the country every week. The catch is that radio only delivers when you run it with enough frequency and give it time. A single one-off ad will not move the needle.
The reach is still there
It is easy to assume radio faded when streaming arrived. It did not.
UK radio reaches 51.1 million adults every week, which is 87% of the adult population. Commercial radio (the stations that carry advertising, like Frisk) reaches 40.2 million people, or 68% of adults, and now takes a larger share of listening than the BBC at 55.1% versus 42.6% (RAJAR, Q2 2026).
Around 76% of that listening is now digital, through smart speakers, apps and DAB, so "radio" today means far more than an FM set in the kitchen.
For a small business, that matters because you can still reach a large, local audience in a single week without needing anyone to follow you, click anything or opt in first.
87% of UK adults still hear radio every week, and three quarters of that listening now happens on a phone, a speaker or a DAB set.
What the return looks like
The most quoted figure comes from Radiocentre's "Radio: The ROI Multiplier" study, which found radio generates £7.70 in revenue for every £1 spent, second only to TV. This is long-running evidence that has held up across repeated analysis (Radiocentre, 2014).
Two honest caveats. First, that is a revenue figure, not profit. It tells you what sales radio helped drive, not what landed in your bank after costs. Second, the return varies a lot by sector:
- Retail: £18.90
- Leisure and entertainment: £11.00
- Automotive: £6.00
- Travel: £5.70
- Finance and insurance: £2.30
- FMCG: £1.90
(Radiocentre, 2014.)
If you want a profit-based number to sit alongside that, Thinkbox's "Profit Ability 2" puts the full-term profit return across all advertising at £4.11 per £1 (Thinkbox, "Profit Ability 2", 2024). Keep the two figures separate in your head. One is revenue, one is profit.
Why it works: awareness and trust
Radio does not usually get someone to buy on the spot. What it does is make you familiar and trusted, which is what most local buying decisions actually run on.
Radiocentre's "Radio: The Performance Multiplier" found that adding radio to a campaign lifts:
- Ad awareness by 49%
- Brand trust by 32%
- Brand relevance by 24%
- Consideration by 18%
- Daily web sessions by 16%
(Radiocentre, February 2026.)
That last one is worth noting. Radio is often treated as pure brand-building, but it also pushes people to look you up online, which is where a lot of local demand gets captured. This is why radio tends to work best alongside your other activity rather than instead of it. For more on that, see radio vs social media advertising.
When radio is the wrong fit
Being honest matters more than a sale here, so here is where radio struggles.
- You need a fast, measurable one-off. Radio builds over weeks. If you want a trackable spike from a single spend, put your money elsewhere first.
- Your product is highly niche. Radio is broad reach. If only a tiny, specific segment can ever buy from you, precise targeting on other channels will waste less.
- Your budget only covers one or two ads. Radio depends on frequency. People need to hear a message several times before it registers. A thin, one-week burst usually underdelivers.
- You have no way to convert the interest. Radio drives people to search and remember. If your website, Google listing or phone line is weak, that attention leaks away. Fix reaching local customers first.
Frisk tip: Before you book anything, decide whether your goal is awareness or an immediate sale. Radio is a strong awareness engine and a supporting act for short-term response, so plan it as the thing that makes people know and trust you, then let your website and social channels close the deal.
A sensible next step
If radio fits, do not treat it as a standalone gamble. Radiocentre's ROI work found that giving radio around a 20% share of a wider campaign budget can lift total campaign ROI by over 8% (Radiocentre, 2014). It is a multiplier, so it earns most when it supports the rest of your marketing.
Start by writing down one clear goal, a realistic run of at least a few weeks, and how you will convert the extra attention. If you want to sanity-check the sums, read how much radio advertising costs in the UK and how to build brand awareness on a small budget.
If you would like a second opinion on whether radio suits your business, the Frisk team can talk it through with you honestly, including telling you when it is not the right time.