How Many Radio Spots Per Week Does a Local Business Need?

It is the first question almost every local advertiser asks me, and it is the right question to ask. Radio is not expensive, but it is not free either, and nobody wants to spend money on a schedule that is too thin to work. It is also the question that decides whether Calgary radio advertising works for a business or quietly disappoints them.

The honest answer is that the number depends less on your budget than on two things: how often someone has to hear you before they remember you, and how much time that station’s audience spends listening.

The short answer: For many local campaigns, my starting range is approximately 18 to 27 radio spots per week, depending on the goal, urgency and campaign length. That is a directional planning range, not guaranteed audience delivery.

Start with frequency, not reach

Reach is how many different people hear you. Frequency is how many times each of them hears you.

New advertisers almost always chase reach. They want the biggest possible number of people to hear the ad once. That instinct is backwards. One exposure is rarely enough to create reliable recall. People forget most of what they hear within days, and a single ad in a busy week does not survive the drive home.

The Radio Advertising Bureau’s guidance on repeated exposure is built around a purchase cycle rather than a calendar week, which for most local categories runs somewhere between four and eight weeks. The principle is the same either way: a message has to land more than once, and it has to land inside the window where someone is actually deciding.

For planning purposes, I work toward repeated weekly exposure, and I raise the target when the campaign is shorter, newer, or more urgent. My own starting points are a frequency of three a week for brand building, three and a half for a seasonal push, and four and a half for an event with a date on it. Note this is frequency, not spots per week, as these are very different things. And those are my practical planning targets, not necessarily industry standards, which vary by station, by medium, and by industry.

What our listening data can and cannot tell you

Surveyed Shine FM Calgary listeners reported spending an average of 28.3 hours a week with the station. Red Deer came in at 31.7 hours, Edmonton at 25.1. These reported listening levels give a well-distributed campaign more opportunity to build familiarity through repeated exposure. The same principle shapes how I plan Shine FM Calgary advertising for every category of local business.

Here is how I turn that into a spot count, and here is where I want to be careful, because this is a planning model rather than a measurement.

For this calculator, I use a simplified full-week, run-of-schedule model: midnight to midnight, seven days a week, or 168 hours. Dividing 28.3 listening hours into those 168 hours suggests that around 18 evenly distributed spots could generate roughly three average opportunities to hear among weekly listeners.

That calculation assumes listening is spread evenly across the week, that everyone behaves like the average, that spots fall evenly across the schedule, and that every listener who is tuned in actually hears the ad. None of those hold perfectly in a real campaign. Numeris defines reach as the number of different people exposed and frequency as the average number of exposures, and time spent listening on its own is neither of those things.

So treat the number as a starting point, not a forecast. It is useful for avoiding schedules that are obviously too thin. It is not a guarantee of delivery, and I would not present it to you as one. Once we have a real campaign in front of us, the recommendation gets adjusted around your audience, your timing, your campaign length and your budget.

On that basis, approximately 18 spots support a modelled target of three average opportunities to hear, 21 support three and a half, and 27 support four and a half.

Rather than make you do the arithmetic, I built a calculator. Pick your station, pick the kind of campaign, set the length.

Across Touch Canada Broadcasting’s five Alberta stations, three Shine FM music stations and two AM stations under The Light, our survey-based estimate is upwards of 200,000 people a month. That footprint is what makes radio advertising across Alberta practical from a single schedule. Among surveyed Shine FM Calgary listeners, 72% are women and 89% are 35 or older.

How long the campaign needs to run

Weekly frequency gets you remembered. Campaign length is what turns that memory into business. The two are separate decisions, and the second is where most local campaigns go wrong.

Events: minimum two weeks. An event has a deadline, which means you do not have the luxury of slow recall. That is why I plan events at the top of the range, around 27 spots a week. Two weeks is the floor. One week does not give people time to check the calendar, arrange a sitter, or tell a friend. Three weeks is better if the event is ticketed.

Seasonal campaigns: three months. Garden centres, tax preparers, tire shops, roofers, camps, anyone whose business has a season. Three months lets you build ahead of the rush, run through the peak, and catch the stragglers on the back end. Starting the week the season begins, is starting late.

Brand building: six months minimum, twelve or more is where the return lives. This is the one advertisers resist and the one that pays. Only a small slice of any audience needs a plumber, a lawyer, a dentist or a new furnace this week. Everyone else needs one eventually. A six to twelve month schedule means you are already familiar when that moment arrives, and familiarity is what gets the call.

I would rather see a business run a modest schedule for a year or more than a heavy one for a month. The blitz produces a spike and then silence. The long schedule produces a business people know and trust.

Consider the full week

One thing that quietly thins a schedule: buying Monday to Friday.

It feels sensible. Business hours, working people, decisions made during the week. But listeners do not stop listening on Friday afternoon. They are in the car on Saturday running errands, in the kitchen on Sunday, at the lake in July. For most consumer campaigns it is worth spreading the schedule across all seven days, and weekends tend to be less crowded with advertising.

Whether that means a full midnight to midnight rotation or a daytime-weighted schedule depends on the inventory and the budget. Run of schedule is the most affordable option and needs more spots to build frequency. A daytime-weighted buy concentrates spots during stronger listening periods, but generally costs more per spot. It is worth pricing both approaches before deciding.

Flighting: how real budgets handle a year

Very few local businesses can hold a full weekly schedule for 52 weeks straight, and they do not need to. Annual campaigns flight.

You weight toward the windows that matter. A private school runs heavy in September and February around open houses. A retailer weights November and December. A home services company weights the shoulder seasons when furnaces and air conditioners fail. Between the peaks you drop to a maintenance level that keeps you present without burning budget.

Bonus inventory helps. Annual commitments earn bonus messages that stretch the delivered schedule past what you paid for, and registered non-profits may qualify for a one for one match, subject to inventory and current terms. That is often the difference between a schedule that reaches useful frequency and one that does not.

The part the numbers do not show

Among surveyed Shine FM Calgary listeners, 83% said they trust the advertising they hear on the station. Among surveyed AM 700 The Light listeners, that figure was 91%.

That trusted environment can help consistent advertisers become familiar, and familiarity can make a business feel more like a neighbour than an interruption.

That is a long game. It does not happen in a two week flight. It happens over months.

The short version

• Building a brand: about 18 spots a week, run of schedule, for six to twelve months.
• Seasonal push: about 21 spots a week, for three months.
• Event or date: about 27 spots a week, for a minimum of two weeks.
• These are directional planning figures, not guaranteed delivery. Real schedules get built around your audience, timing and budget.
• Consider all seven days. Price a run of schedule buy against a daytime-weighted one before deciding.
• For brand building, a modest schedule held for longer will usually outperform a brief burst followed by silence.

If you want to see what this looks like against a real budget, I am happy to run the numbers. Bring me what you want to spend and what you are trying to accomplish, and I will build a schedule around it. Book a strategy call and we will work through it together.

Source: Harris Poll Canada / Stagwell audience research commissioned for Touch Canada Broadcasting, conducted October to November 2025. Results are survey-based and should not be interpreted as Numeris audience ratings. Spot recommendations in this article are directional planning estimates and do not represent guaranteed reach, ratings or individual listener exposure.

Jodi Morel Alberta Marketing Representative, Shine FM and The Light Touch Canada Broadcasting jodi.morel@shinefm.com | 403-973-6707