How This Calculator Works

This calculator scores the results of the Wingate Anaerobic Test (WAnT) — the standard laboratory test of short-term, maximal anaerobic power and capacity, performed as a 30-second all-out sprint on a cycle ergometer. You enter your sex, body mass, and the three power figures the test produces — peak power, mean power, and lowest power. The calculator then converts your peak and mean power to watts per kilogram (W/kg), classifies each into a five-tier category against published percentile norms, reports your absolute power and fatigue index, and shows where you fall in the population.

Crucially, this is a scoring tool, not a measuring tool. The three power numbers come from running the actual test on a calibrated ergometer — see How to Get Your Numbers below.

Step 1: Enter Your Details

The calculator needs four inputs plus a unit selection:

• SexAnaerobic power norms are reported separately for men and women, who differ on average in muscle mass and fibre composition. Men produce higher absolute and relative power across the range. — selects which normative table you are compared against.
• Body massBody mass does double duty: it converts your raw watts into watts-per-kilogram for classification, and on a real test it sets the flywheel resistance (a fixed fraction of body weight). — used to convert your absolute power into relative power (W/kg), which is what the tiers are based on.
• Peak Power (W) — the single highest power output of the test, almost always in the first few seconds.
• Mean Power (W) — your average power sustained across the full 30 seconds.
• Lowest Power (W) — the minimum power output, almost always in the final seconds. Used only to compute the fatigue index.
• UnitsUnlike most tools on this site, the toggle here only affects body mass. Power is always entered and reported in watts, and relative power is always W/kg — both are universal across measurement systems. — toggles body mass between kilograms and pounds. Power values stay in watts regardless.

The calculator enforces a simple sanity check: peak ≥ mean ≥ lowest. If your entries violate this, it asks you to re-check them.

How to Get Your Numbers

The three power values are produced when the test is run on a cycle ergometer. There are two realistic ways you will obtain them:

• From ergometer software (the usual case).Lode, Monark with a power kit, Wattbike, and most lab systems sample power many times per second and report peak, mean, and minimum power automatically at the end of the test. A modern ergometer records power continuously and displays all three figures on its results screen at the end of the 30 seconds. You simply transcribe them: peak power, mean power, and the lowest (minimum) power.
• From revolution counts (the classic manual method).Used with a basic mechanically-braked Monark that has only a revolution counter. You divide the 30 seconds into six 5-second segments and count pedal revolutions in each. On a basic Monark, you count pedal revolutions in each of six 5-second segments and convert each to power.

For the manual method, each 5-second segment's power is:

Here Force is the resistance applied to the flywheel in kiloponds (kp)A kilopond is the force of gravity on one kilogram (1 kp ≈ 9.81 newtons). The flywheel travels 6 metres per pedal revolution on a standard Monark, and the ÷ 5 converts the 5-second work total into average power for that segment., 6 m is the distance the flywheel travels per pedal revolution on a standard Monark, and 9.81 converts kiloponds to newtons. From the six segment values:

• Peak Power = the highest of the six segments (usually the first).
• Mean Power = the average of all six segments.
• Lowest Power = the smallest segment (usually the last).

The resistance setting matters for comparability.Force is set as a fixed fraction of body mass. Maud & Shultz used 0.075 kp/kg. Many modern protocols use higher loads (0.085–0.090 kp/kg) for trained athletes, which produces higher peak power and reduces comparability with these norms. The norms in this calculator come from a protocol using a resistance of 0.075 kp per kg of body mass. If your test used a heavier optimized load, your absolute and peak numbers will read higher, and the percentile comparison becomes looser.

You cannot get meaningful numbers from a regular stationary bike or a guess. The test requires a calibrated ergometer with a known, fixed resistance and a genuine all-out effort. In practice, your numbers will almost always come from a lab or testing session that hands you the readout directly.

The Test Protocol

For results that match the norms, the test must follow the standard procedure:

• Warm-up: 3–5 minutes of light-to-moderate cycling with a few short sprints, then a brief rest. The test is unsafe and inaccurate when performed cold.
• Fixed resistance:The braking force is set before the test as a fraction of body mass and held constant for the full 30 seconds. It is not adjusted mid-test. The flywheel resistance is set as a fixed fraction of body mass and does not change during the test.
• All-out start: On the "go" signal, the rider sprints at maximal cadence immediately and the resistance is applied. Power peaks within the first few seconds.
• 30 seconds, maximal throughout:The rider must keep pushing as hard as possible the whole time, even as power falls. Pacing invalidates the result — the decline in power is part of what the test measures. The rider pedals as hard as possible for the entire 30 seconds, with no pacing.
• Cool-down: Light pedalling afterward helps clear the heavy nausea and leg fatigue the test produces.

How Your Category Is Determined

Your relative peak power and relative mean power (both in W/kg) are each compared against the percentile norms for your sex and placed in the highest tier you qualify for. The same five-tier scale used across this platform applies, mapped directly to percentile bands:

• Low — below the 20th percentile. Below the bottom fifth of physically active young adults. The most to gain from anaerobic and strength training.
• Intermediate — 20th to 50th percentile. Around the lower-middle of the active-adult range — typical of recreationally active people who do not train for power.
• Advanced — 50th to 80th percentile. Above the median for active adults — reflects regular training with an anaerobic component.
• Superior — 80th to 95th percentile. Well above average — characteristic of competitive and well-trained athletes.
• Elite — 95th percentile and above. Top of the active-adult distribution. Power-sport athletes (sprint cyclists, track sprinters) routinely exceed even this, sitting above the norm table entirely.

Unlike some field tests where tiers are estimated from sparse data, these bands rest on a genuine published percentile table, so your category and percentile come straight from the source distribution rather than a modeled approximation.

Relative vs. Absolute Power

The calculator classifies relative power (W/kg) but shows absolute power (W) only as a plain readout, with no tier. This is deliberate:

• Absolute power favours larger people.A 90 kg rider will out-watt a 60 kg rider almost regardless of training, simply because there is more muscle mass driving the flywheel. Raw watts therefore can't be fairly tiered across body sizes. A heavier rider produces more raw watts largely because of size, so absolute watts cannot be fairly tiered across different body masses.
• Relative power levels the field. Dividing by body mass lets a 60 kg and a 90 kg athlete be compared on equal terms, which is why the sport-science literature uses W/kg as the primary classification metric.

Your absolute peak and mean power are still useful — they are the right numbers for tracking your own raw output over time — they just aren't meaningful as a cross-population ranking.

Fatigue Index

The fatigue indexAlso called the anaerobic fatigue rate or percent decrement. It captures how steeply your power fell from its peak to its lowest point during the 30 seconds. is the percentage drop from your peak power to your lowest power:

The calculator shows this as a plain number with no tier or colour, on purpose. Unlike power, the fatigue index has no clean direction of merit: a lower value means you held your power better, but the fatigue index also tends to rise with peak power — the most explosive athletes often fatigue the most simply because they have more power to lose. A high fatigue index can reflect superior fast-twitch output rather than poor conditioning, so labelling it good or bad would imply a verdict the science does not cleanly support. We report the percentage and leave its interpretation to context.

How to Read the Standards Table

The standards table lists the relative power (W/kg) at each percentile for your sex, for both peak and mean power. The percentile column is colour-coded to the five tier bands, and the row closest to your peak-power rank is highlighted and marked ← you. On a phone the headers shorten; tap any header to see its full name.

• Each value is the relative power at that percentile. If your W/kg meets or exceeds a row's value, you rank at or above that percentile.
• The highlight follows your peak-power rank.Because peak and mean power can fall at slightly different percentiles, the highlighted row tracks your peak-power rank specifically. Read the mean column independently against your own mean W/kg. Read the mean-power column against your own relative mean power separately.

Where You Rank

The chart plots relative peak power against population percentile. The shaded horizontal bands are the five tiers, the dashed line is the percentile curve from the norms, and the dot marks your relative peak power at your percentile. The band your dot sits in is your current level. Because the norms are a single adult reference group, there is no age axis — the chart shows your standing in the population, not change across age.

Why the Wingate Test Matters

The Wingate is the most widely used laboratory measure of anaerobic performance — the energy your body produces without relying on oxygen, which fuels efforts lasting up to about 30–60 seconds. Peak power reflects your immediate, phosphocreatine-driven explosiveness, while mean power reflects your anaerobic capacity — how much total work your glycolytic system can sustain. Together they predict performance in sprinting, track cycling, rowing starts, and the repeated high-intensity bursts of team sports.

Because it isolates the anaerobic systems and is highly reproducible, the Wingate is also a sensitive tool for tracking training adaptations: improvements in sprint or interval training show up clearly in peak and mean power. It is used across competitive sport, exercise-physiology research, and clinical exercise testing.

Important context: a single test does not define an athlete. Treat your Wingate scores as one indicator among several, most valuable for tracking your own progress under consistent test conditions rather than as a standalone verdict on your ability.

Data Sources and Methodology

The norms and the test structure draw on established sport-science references:

• Maud, P.J., & Shultz, B.B. (1989). Norms for the Wingate anaerobic test with comparison to another similar test. Research Quarterly for Exercise and Sport, 60(2), 144–151 — the percentile norms for relative peak and mean power used for classification, derived from 112 men and 74 women aged 18–28.
• Bar-Or, O. (1987). The Wingate anaerobic test: an update on methodology, reliability and validity. Sports Medicine, 4(6), 381–394 — the standard reference on test methodology and interpretation.
• Inbar, O., Bar-Or, O., & Skinner, J.S. (1996). The Wingate Anaerobic Test. Human Kinetics — the definitive monograph on the protocol, including resistance-setting and power calculations.
• ACSM's Guidelines for Exercise Testing and Prescription (11th Edition, 2021). Wolters Kluwer — standardized anaerobic-testing principles and interpretation.

A note on the norms: the Maud & Shultz reference describes physically active young adults (18–28) tested at a resistance of 0.075 kp/kg. Because no equivalent age-banded general-population W/kg dataset exists across the lifespan, this calculator does not adjust for age and does not estimate a "power age." Your classification reflects how you compare to this active young-adult reference group, regardless of your own age. Trained power-sport athletes routinely exceed the top of this table.

Limitations and Important Caveats

This calculator scores test data; the quality of your result depends entirely on how the test was performed.

• Garbage in, garbage out.The classification is only as good as the numbers entered. An uncalibrated ergometer, a non-maximal effort, or a missed warm-up will all distort the result. The output is only as accurate as the power figures you enter, which depend on a calibrated ergometer and a true all-out effort.
• Resistance-setting sensitivity. The norms assume a 0.075 kp/kg load. Heavier optimized loads raise peak and absolute power and reduce comparability with these percentiles.
• Reference group, not age-adjusted. Classification is against active adults aged 18–28. Older or younger users are still measured against that group, so interpret accordingly.
• Fatigue index is descriptive only. It is reported without a tier because it has no clean good/bad direction and rises with peak power.
• Single-test snapshot. Sleep, hydration, time of day, recent training, and motivation all move a single result. For tracking, retest under matched conditions.
• Lower-body, cycling-specific. The Wingate measures leg anaerobic power on a bike; it does not directly transfer to upper-body or sport-specific power.

Disclaimer:
This calculator scores the results of a Wingate Anaerobic Test against published normative ranges. The Wingate is a maximal, all-out effort that places substantial stress on the cardiovascular and musculoskeletal systems; transient nausea, dizziness, and light-headedness afterward are common. This tool is for general informational purposes only and is not medical, fitness, or training advice. Obtain medical clearance before performing maximal-effort anaerobic testing, especially if you are over the age of 45, have been sedentary, or have any cardiovascular, metabolic, respiratory, or musculoskeletal condition. Always warm up thoroughly, perform the test under appropriate supervision on properly calibrated equipment, and stop if you experience chest pain, severe shortness of breath, or faintness.