Could your week support on-call firefighting?
Click or drag across a weekly grid to mark the hours you could reach the station in time. See your cover by day, night, weekday and weekend, a clearly labelled fit score, and the retainer band your hours suggest.
Your availability
Click or drag to mark the hours you could reach the station in time
Illustrative planning estimate based on published rules, not financial, legal, pension or tax advice. Your payroll record, contract and scheme administrator control your actual position.
Why availability is the real question in on-call
Most people who look at on-call firefighting start with pay or fitness. Services and serving crews tend to start somewhere else: can this person actually be at the station, within a few minutes, at the hours they are offering? On-call firefighters, sometimes still called retained firefighters, provide emergency cover from home or work rather than working fixed shifts at the station. NFCC describes cover that can be full days or part of the day or night, fitted around a person's other commitments. That flexibility is what makes the role possible alongside another job, and it is also what makes it hard to judge from the outside. A week has 168 hours. Which of them could you honestly commit, and what happens on the other side of the pager?
This planner turns that question into a picture. Mark the hours you could respond, tell it how far away you would be and whether an employer could release you, and it shows how your week adds up. It does not decide for you. It shows the trade-offs so that the conversation with your station, your employer and your household starts with real hours rather than guesses.
How to use the grid
Each cell is one hour. Rows run from midnight to midnight and columns run Monday to Sunday. Click a cell to switch it on, or press and drag across several. Tap a day name to switch on the whole day and an hour label to switch on that hour across the week. A few starting points sit on the left: weekday evenings and weekends, nights only, weekday daytime, weekends only, full cover and clear. Start from the closest, then edit it into your real pattern.
Mark an hour only if you could get from where you would be to the station within the response time. If you are at work twenty minutes away, that hour is not available even if you would be free in principle. If you would be asleep and could wake, dress and leave within the time, that counts, but think about how you would feel doing it three nights running. The most useful version of the grid is the cautious one.
What the numbers mean
The planner counts your hours in several ways, and it defines each so nothing is hidden. Day is 07:00 to 19:00 and night is 19:00 to 07:00. Weekday working hours means Monday to Friday, 09:00 to 17:00, which is the window in which an employer would be asked to let you leave work. Weekend is Saturday and Sunday. It also counts how many separate blocks of cover you have, how long the longest is and how many are shorter than four hours.
| Measure | Definition | Why it matters |
|---|---|---|
| Weekly hours | All marked hours | Sets the retainer band your contract is likely to use |
| Weekday working hours | Mon to Fri, 09:00 to 17:00 | Needs an employer who can release you; services commonly report daytime as hard to fill |
| Night hours | 19:00 to 07:00 | Often needed by stations, but affects sleep and the next day |
| Weekend hours | Saturday and Sunday | Often easier to offer alongside a Monday to Friday job |
| Blocks of 4+ hours | Runs of consecutive marked hours | Cover in unbroken blocks is easier to plan around, for you and the station |
The response time, and why it shapes everything
NFCC says the expectation is usually that you will arrive at the station within a matter of minutes of the alert, and services commonly quote around five minutes. That is why on-call recruitment is so local. It is not about the town you live in; it is about the minutes between the place you will be and the station door, at each hour you offer. Use the slider to enter your own figure. The planner scores five minutes or under as ideal and flags anything longer, because the requirement is set by each service and your station may be stricter or more relaxed. Ask, and put the answer into your letter.
The employer question
NFCC says on-call firefighters need an agreement with their employer that lets them leave work if they are alerted, and it publishes a guide for employers. If you plan to respond from work, this matters more than any other part of the grid. Choose the option that matches your situation. If your employer will not release you, the planner leaves weekday-daytime hours out of the fit score and warns you about hours you have marked but could not cover. If you have not asked yet, it reminds you to. Whether you offer weekday cover is a real choice: many people offer evenings, nights and weekends only, and services still find those hours useful.
When you are ready to raise it, the paid On-Call Joiner Pack writes a personalised, editable letter using your own numbers, and the employer conversation guide explains how the conversation tends to go.
The fit score is a heuristic, not a verdict
The fit score is out of 100 and is built from six parts: weekly hours (40 points, with 60 hours scoring the full amount), night cover (15), weekday daytime cover (20, zero if your employer will not release you), weekend cover (10), how much of your cover sits in blocks of four hours or more (10) and response time (5). You can open the breakdown in the tool to see every part. The weights are ours. They reward more cover and cover in the hardest-to-fill hours, but we cannot verify a national minimum: NFCC says many on-call roles have no set required hours, so your service decides what it needs. A low score does not mean you cannot be on-call, and a high score does not mean you will be selected. Use it to notice what to ask about.
The flags beneath the score are usually more useful than the number. They point out things like a long response time, hours that clash with your employer's answer, very fragmented cover or a day with so many hours marked that sleep looks unrealistic. Treat them as questions to take to the station.
Retainer bands and what your hours suggest
The on-call retainer pays for providing availability. From 1 January 2025 it is a percentage of wholetime basic pay: 15% for full cover of 120 hours or more a week, then 12.5% for 91 to 119 hours, 10% for 61 to 90, 7.5% for 31 to 60 and 5% for up to 30. On the rates from 1 July 2026 the full retainer is £4,731 a year at the development rate and £6,054 at the competent rate. The planner maps your weekly hours to a band and shows the annual amount at your rate. Your contract sets which band applies, so treat this as an estimate. The retainer is only part of on-call pay: activity, including drill night, is paid at the basic hourly rate, and a £5.31 disturbance payment is added for each call-out.
| Band | Weekly cover | Development (£31,539) | Competent (£40,358) |
|---|---|---|---|
| 5% | up to 30 hours | £1,577 | £2,018 |
| 7.5% | 31 to 60 | £2,365 | £3,027 |
| 10% | 61 to 90 | £3,154 | £4,036 |
| 12.5% | 91 to 119 | £3,942 | £5,045 |
| 15% | 120+ (full cover) | £4,731 | £6,054 |
To see call-outs, drill and disturbance pay added, open the on-call earnings planner, or read the on-call pay guide and the annual earnings examples. For a quicker single-figure check use the on-call pay calculator.
Sleep, safety and the rest of your life
The tool flags days with more than 16 hours marked and weeks above 100 hours, because being on call is not the same as being free. If a call wakes you at 03:00 and you are working at 08:00, or driving, you need to be safe. Talk to serving on-call firefighters about how they manage nights, alcohol, childcare and caring responsibilities, and be honest with yourself about how much you can sustain for years rather than weeks. Our on-call availability guide goes into this in detail, and how to become an on-call firefighter covers the steps from application to starting cover.
Typical next steps once you have your grid
- Check the stations within your response time at the hours you marked, and look up how the service recruits: many recruit station by station rather than in one large campaign.
- Visit a drill night. Services describe drill nights of around three hours each week. Seeing one is the best test of whether the role suits you.
- Ask for the numbers: the response time, the cover the station needs, its incidents per crew member in recent years and the retainer band and development period in the contract.
- Talk to your employer and household using real hours from the grid.
- Prepare for selection. NFCC refers to bleep and Chester treadmill tests; use the bleep test calculator and the recruitment timeline planner.
What this planner does not do
It does not know your station's cover requirements, your service's rules on minimum hours, how many people already cover your hours, or your contract. It does not measure travel time; it uses the minutes you enter. It does not decide whether you would be selected, and it makes no claim about what an employer must do. It is an aid to thinking and to asking better questions, and your service is the authority on how on-call works where you live.
Frequently asked questions
How many hours a week do I need to be available as an on-call firefighter?
There is no single national figure we can verify. NFCC says cover can be made up of full days or part of the day or night, and that many on-call firefighters have no set required hours, so the amount is set locally by your service and your contract. Retainer bands do start at up to 30 hours a week (5%) and rise to 120 hours or more (15%), so it is worth asking your station which band its contracts use.
How quickly do I have to reach the station?
NFCC says the expectation is usually that you arrive at the station within a matter of minutes of the alert, and services commonly quote around five minutes. The exact figure depends on your service and station, so confirm it before you apply. The planner lets you enter your own minutes and flags anything above five.
Does my employer have to release me for call-outs?
No rule in this tool or on this page says an employer must. NFCC says on-call firefighters need an agreement with their employer that lets them leave work if they are alerted, and NFCC publishes a guide for employers. If you plan to respond from work, speak to your employer before you apply. The premium pack writes a first draft of that conversation.
What is the fit score?
A heuristic that adds up weekly hours, night cover, weekday-daytime cover, weekend cover, how many of your hours sit in blocks of four hours or more, and your response time. The weights are ours and are shown on the page. It is a prompt for reflection, not the criteria any fire and rescue service uses to select recruits.
Which retainer band will I be paid?
That depends on your contract. The planner maps your weekly hours to the Grey Book bands (5% up to 30 hours, 7.5% for 31 to 60, 10% for 61 to 90, 12.5% for 91 to 119, 15% for 120 or more) as a guide. Your service confirms which band applies to you. The retainer is a percentage of wholetime basic pay for your role and stage.
Can I do on-call and keep my main job?
Many people do, and on-call is designed around other commitments. The practical questions are whether you can reach the station in time from where you will be, whether your employer will release you if you offer weekday cover, and whether you can rest enough after night calls. The grid helps you see which hours you are really offering.
Is my availability stored anywhere?
It stays in your browser's local storage. Only coarse analytics buckets are recorded, such as a weekly-hours range, never the grid itself. If you fill in the optional register-interest form, that is separate and only stores what you type in it, with the consent you choose.
Is this official guidance from a fire service?
No. Firefighter Pay is independent. The tool uses NFCC's public description of on-call firefighting and the NJC pay circular. Your fire and rescue service is the authority on its own requirements.
Sources and assumptions
- NFCC: on-call firefighting: role, cover that can be part of the day or night, response within a matter of minutes, weekly training and the need for an employer agreement (checked 30 September 2026).
- LGA: NJC firefighter pay circular NJC/2/26: hourly rates, disturbance payment and retainer, held in
firePayData.ts; lower retainer bands per the Grey Book. - Response time of about five minutes: commonly quoted by services and summarised in our how to become an on-call firefighter guide; your service sets the real figure.
- Assumptions: day, night, weekday and weekend definitions are shown above. The fit score weights are ours and are not any service's criteria. Retainer band mapping is indicative. Independent of any fire and rescue service.