Turn a bleep test score into shuttles, VO2 max and a gap to target.

How the firefighter bleep test calculator works

The bleep test is the popular name for the 20 metre multi-stage fitness test. You run back and forth between two lines 20 metres apart, keeping pace with a recorded beep. The beeps get closer together as you go, so you have to run faster. When you cannot reach a line before the beep on two consecutive shuttles, the test ends and your score is the level and shuttle you last completed. A score of 8.8 means level 8, shuttle 8.

This calculator converts that score into numbers that are easier to plan around: total shuttles completed, total distance, an approximate running time, and an estimated VO2 max in millilitres of oxygen per kilogram of body weight per minute. It then compares your score with a target and tells you how many shuttles, how many levels and how many metres you are short, or by how much you have cleared it. The levels-still-to-run view breaks the gap down level by level so you can see what you need to add.

All the maths runs in your browser. The level table is the standard one published for the test: level 1 starts at 8.5 km/h and every level adds 0.5 km/h, so level 8 is 12.0 km/h. Each level lasts roughly a minute, which is why later levels contain more shuttles.

Levels, shuttles, speed and estimated VO2 max

The table below is generated from the same data the calculator uses. The shuttle counts per level follow the standard 20 m multi-stage table, and the VO2 max column is the estimate at the end of each level. Running time is nominal, calculated from each level's speed, and does not include the initial countdown or any turning inefficiency.

Bleep test VO2 max chart: every level and shuttle

This is the full level-by-shuttle chart many people look for when they search for a "bleep test table": find the row for the level you reached and the column for the shuttle, and the cell is the estimated VO2 max (ml/kg/min). It is calculated with the same Ramsbottom et al. (1988) relationship as the calculator above, so it matches your result exactly. Level 8 shuttle 8, the standard many fire and rescue services publish, is highlighted. Tables on other sites based on Leger and Lambert (1982) can differ by a few tenths.

S = shuttle within the level. Estimates only: individual VO2 max varies with running economy, turning and pacing. Enter your own level and shuttle in the calculator for distance, time and your gap to a target.

Worked example: from level 7.4 to level 8.8

Suppose a candidate stops at level 7, shuttle 4 (written 7.4). Levels 1 to 6 contain 7 + 8 + 8 + 9 + 9 + 10 = 51 shuttles, and the four completed shuttles in level 7 make 55 shuttles in total. At 20 metres each, that is 1,100 metres. The estimated VO2 max is 3.46 x (7 + 4/10) + 12.2 = 37.8 ml/kg/min.

The commonly published firefighter target, level 8.8, needs the 61 shuttles from levels 1 to 7 plus eight in level 8, so 69 shuttles or 1,380 metres, with an estimated VO2 max of 42.4. The candidate is 14 shuttles short, or 280 metres, which is about 1.3 levels on the continuous score (8.73 minus 7.40). The levels-still-to-run panel shows this as six more shuttles to finish level 7 and eight more in level 8.

That looks small, but the last shuttles are the hardest: you are already tired and the pace is 12 km/h. A gap of 14 shuttles can represent several weeks of structured work, which is why steady progression beats a last-minute panic.

What target should you choose?

There is no single national bleep test pass mark written into law. What exists is a widely adopted standard: a number of UK fire and rescue services publish level 8.8, corresponding to a VO2 max of about 42 ml/kg/min, as the aerobic standard for wholetime firefighter candidates. Some services publish that they use the Chester treadmill walk test to the same aerobic standard, and at least one service's candidate guidance has allowed candidates who reach at least level 6.8 to continue in the process and be assessed by treadmill instead. Others set different thresholds or change them between recruitment rounds.

That is why the target box has a custom option. If your candidate information states a level, type it in as level.shuttle. Do not rely on an old forum post or a previous year's pack; recruitment standards are reviewed and the current document is the specification. If the pack is unclear, ask the recruitment team which test is used, what score passes and whether there is any retest policy.

Note also that a bleep test is only one part of fitness assessment. The Home Office's modern firefighter fitness guidance describes job-related tasks such as a ladder climb, a simulated ladder lift, enclosed space entry, equipment assembly, casualty evacuation (walking backwards while dragging around 55 kg) and an equipment carry. Read the firefighter fitness tests explained guide for what each task looks like, and see the bleep test standard guide for how the standard is applied.

How the VO2 max estimate is calculated

Two published equations are involved. The main estimate comes from the relationship reported by Ramsbottom, Brewer and Williams in 1988, which links the level reached to measured maximal oxygen uptake with a correlation of 0.92. Written as a formula, VO2 max is approximately 3.46 times the continuous score plus 12.2, where the continuous score is the level plus the shuttle divided by the number of shuttles in that level. This reproduces the published lookup table to about 0.1 ml/kg/min and does not vary by age or sex.

If you enter an age from 8 to 19, the calculator also shows the Leger et al. (1988) equation, VO2 max = 31.025 + 3.238 x speed - 3.248 x age + 0.1536 x age x speed, where speed is the speed in km/h of the level reached. That equation was developed for children and adolescents and is included as a second opinion; most firefighter applicants are adults, so it stays hidden unless you enter a qualifying age. Expect the two estimates to differ by a couple of units.

Neither equation is a laboratory measurement. They tell you roughly where your aerobic fitness sits relative to the 42 ml/kg/min figure services often quote, but the test itself, at your service's chosen conditions, is what counts.

Common mistakes when reading a bleep test score

• Writing the wrong shuttle. Scores are level.shuttle, not decimals. Level 8.10 is not the same as 8.1; it is level 8, shuttle 10. This calculator asks for the two numbers separately to avoid the confusion.
• Counting the level you failed. Use the last shuttle you completed. If you missed the line on shuttle 9 of level 8, your score is 8.8.
• Comparing shuttle totals between sources. Different apps and tables sometimes give different cumulative totals for the same level. Level and shuttle are the reference; totals here follow the standard table. One service publishes different totals for 8.8 than the standard table gives, so trust the level and shuttle rather than a shuttle count.
• Assuming home practice equals test day. Track length, surface, footwear, audio speed and turning technique all matter. A practice run on a slippery floor or a track that is a metre long will mislead you. Check the beep interval against a stopwatch if you use a phone app.
• Ignoring the rest of the assessment. A comfortable pass on the shuttle run does not cover the strength and confidence tasks. Use the fitness readiness checker to look at the whole picture.
• Chasing the target with a sudden jump in training. A rapid increase in running volume or intensity is a common route to shin, knee and Achilles problems. Build up gradually and see a GP or qualified professional if you have any health concern or persistent pain.

Training to close the gap, safely

Improving a bleep test score is a matter of aerobic fitness, running economy and pacing, in that order of importance. Easy running builds the aerobic base. Interval sessions at or near bleep pace teach your body to tolerate the higher levels. Practising the turn matters because each shuttle contains a deceleration, a pivot and a re-acceleration, and inefficient turns waste energy. Strength work for legs and trunk supports both running and the job-related tasks.

The Home Office guide recommends warming up before activity, cooling down afterwards, adapting your training plan roughly every month so you keep progressing, and seeking advice from a qualified professional if you are unsure about an exercise. It lists cardiovascular activity, strength exercises such as squats, step-ups, presses, rows and dead lifts, and flexibility work as the pillars of preparation. Many services also run taster days where you can try practice tests and ask how to prepare; attending one is the best way to see the exact format.

This page is general information, not medical advice. If you are new to exercise, returning after a break, have a health condition or symptoms such as chest pain, dizziness or unusual breathlessness, speak to your GP before starting hard training. Stop if something hurts in a sharp or worsening way.

Using the pace guide and the level ladder

The pace guide tab lists every level with its speed, the time allowed for each 20 metre shuttle, the equivalent running pace per kilometre, cumulative shuttles and distance, and the estimated VO2 max at the end of the level. Your level and your target are highlighted. The beep interval is the most practical column: level 8 is 12.0 km/h, so you have exactly 6.0 seconds per shuttle, and an interval-timer app set to that spacing lets you rehearse the target level without a bleep track. The level ladder on the calculator tab shows the same idea visually: each column is a level, taller means faster, green is what you have completed and the orange line is the target.

The what-if slider answers a question people ask constantly: if I add ten shuttles, where does that take me? And the distance box converts a metre count from an app into a level and shuttle. Neither changes the maths; they just save you the arithmetic.

Why readiness, not a pass percentage

Some tools show a “chance of passing”. We do not, because it could not be honest. A service that uses the bleep test publishes a level, and you either reach it or you do not. There is no public dataset that says a candidate at level 7.4 with eight weeks to go has a given percentage chance, so any such number would be invented. Instead the calculator reports the size of the gap in shuttles, levels and time, and places it in a band (at target, within half a level, one to one-and-a-half levels away, or further) that we describe openly as a planning heuristic. If you want a cushion for nerves and a bad day, the plan settings let you aim two or four shuttles beyond the standard; that is a personal choice, not a published rule.

Want a week-by-week plan?

The Firefighter Fitness Pass Suite is a one-off £14.99 upgrade that takes your current level and your target and builds a 6, 8 or 10 week progression. It schedules running, bleep-pace interval and strength sessions using ramping rules designed to avoid sudden jumps, gives you a result log with a planned-versus-actual chart, a test-day checklist, an AI coach that answers questions using your numbers, a printable briefing and a calendar file of your sessions. It is also included in the Candidate Bundle alongside the Career Suite. The free calculator above is not restricted in any way; the suite adds structure, not the answer.

To see where the bleep test sits in the wider process, read the firefighter fitness test guide and the selection process stages guide.

Frequently asked questions

Sources and assumptions

• Ramsbottom R, Brewer J, Williams C (1988). A progressive shuttle run test to estimate maximal oxygen uptake. British Journal of Sports Medicine 22(4):141-144. bjsm.bmj.com. Basis for the VO2 max estimate from level and the r = 0.92 validation.
• Leger LA, Mercier D, Gadoury C, Lambert J (1988). The multistage 20 metre shuttle run test for aerobic fitness. Journal of Sports Sciences 6(2):93-101. PubMed. Source of the age 8 to 19 equation and the protocol (8.5 km/h start, 0.5 km/h per level).
• Leger and Lambert (1982) multistage VO2 max table as reproduced by Brian Mac Sports Coach: brianmac.co.uk/msftable.htm. Used to cross-check shuttles per level for levels 4 to 21 and the level-8 estimates.
• Formula VO2 max = 3.46 x continuous score + 12.2 as implemented by Topend Sports: topendsports.com/testing/beepcalc.htm. I checked it against the published table values at level 8 (40.5 at shuttle 2, 42.4 at shuttle 8, 43.3 at shuttle 11).
• Home Office, Modern Firefighter Fitness Guide: assets.publishing.service.gov.uk. Source for the job-related tasks and general preparation advice.
• Level 8.8 and level 6.8 thresholds: Cumbria Fire and Rescue Service wholetime recruitment page (archived page), which describes level 8.8 as the pass, a 42 VO2 max standard, and further assessment by Chester treadmill for scores between 6.8 and 8.8. That page quotes 77 shuttles and 1,560 metres for 8.8, which differs from the 69 shuttles and 1,380 metres given by the standard table used here; this calculator uses the standard table.
• Assumptions: nominal running times exclude the countdown and turn losses; shuttle counts for levels 1 to 3 (7, 8, 8) follow the standard table but were not separately confirmed against a primary paper; the VO2 max figures are estimates. Your service's live recruitment pack overrides everything here.

Independent information only, not medical or recruitment advice. Firefighter Pay is not affiliated with any fire and rescue service.