Estimate calories and kilojoules burned playing American football — the gridiron sport played with an oval ball, forward passes and a series of downs, as seen in the NFL and US college football — based on your body weight, whether you played touch/flag or competitive tackle football, and how long you played. This is not the sport Australians usually call "football" (soccer), and it is not rugby league or rugby union. MegaCalcOnline has separate Soccer Calorie Calculator and Rugby Calorie Calculator pages for those two sports — if you're after either of those, use the links in the Related Calculators section near the bottom of this page instead.
American football calorie burn is estimated with calories = MET × body weight (kg) × duration (hours), using two MET values from the Sports section of the 2024 Adult Compendium of Physical Activities: touch or flag football, light effort (MET 4.0, code 15232) and competitive / tackle football (MET 8.0, code 15210). A 75 kg player over a 30-minute session burns around 150 kcal (about 628 kJ) playing touch or flag football, or around 300 kcal (about 1,255 kJ) playing competitive tackle football. Only one of these two MET values is a Compendium-flagged estimate rather than a literature-confirmed figure — see the disclosure below for exactly which one.
| Style of Play | MET | Calories | Kilojoules |
|---|
The calculation uses a MET (Metabolic Equivalent of Task) value for your style of play, your body weight, and how long you were on the field. This calculator uses two MET tiers taken directly from the Sports section of the 2024 Adult Compendium of Physical Activities — touch or flag football, light effort (code 15232, MET 4.0) and competitive / tackle football (code 15210, MET 8.0). Because football sessions are usually measured in minutes rather than hours, the calculator takes your minutes input and converts it to hours (hours = minutes ÷ 60) before applying the formula.
| Style of Play | MET | Calories (75 kg, 30 min) | Kilojoules |
|---|---|---|---|
| Touch or flag football, light effort | 4.0 | 150 kcal | 628 kJ |
| Competitive / tackle football | 8.0 | 300 kcal | 1,255 kJ |
American football, also called gridiron football, is a genuinely different sport from soccer and from rugby league or rugby union, even though the word "football" gets used loosely across different countries. It's played with an oval ball on a marked field with end zones, structured around a series of downs, forward passes, and set formations at the line of scrimmage, with a squad rotating specialised offensive, defensive and special-teams units on and off the field. Because Australians commonly use "football" to mean soccer, and because MegaCalcOnline already runs separate calorie calculators for soccer and for rugby, this page deliberately calls out that distinction up front rather than leaving readers to guess which sport it's actually covering.
The two tiers on this page track how much contact and continuous exertion is involved, since that's the main driver of energy cost in football. Touch or flag football, light effort, covers social, backyard or low-contact league games where players are down when tagged or a flag is pulled rather than tackled to the ground — think weekend social competitions, school PE sessions, or a casual game at the park. Competitive / tackle football covers full-contact play at a genuinely competitive intensity — organised club, school or league tackle football with pads, blocking, tackling and repeated explosive bursts — which carries roughly double the energy cost of the light-effort touch or flag tier. Match the tier to how your own game was actually played, not just to what the sport is called.
The table below holds the tier constant at competitive / tackle football (MET 8.0) for a 30-minute session, so you can see how much body weight alone changes the total.
| Body Weight | MET | Calories (30 min) | Kilojoules |
|---|---|---|---|
| 60 kg | 8.0 | 240 kcal | 1,004 kJ |
| 70 kg | 8.0 | 280 kcal | 1,172 kJ |
| 80 kg | 8.0 | 320 kcal | 1,339 kJ |
| 90 kg | 8.0 | 360 kcal | 1,506 kJ |
| 100 kg | 8.0 | 400 kcal | 1,674 kJ |
Football sessions range from a quick 15-minute backyard game to a full hour or more of organised play. Here body weight is fixed at 75 kg while session length and tier both change, so you can compare how a longer session and the level of contact each add to the total.
| Session Length | Touch/Flag Football (MET 4.0) | Competitive/Tackle Football (MET 8.0) |
|---|---|---|
| 15 minutes | 75 kcal / 314 kJ | 150 kcal / 628 kJ |
| 30 minutes | 150 kcal / 628 kJ | 300 kcal / 1,255 kJ |
| 45 minutes | 225 kcal / 941 kJ | 450 kcal / 1,883 kJ |
| 60 minutes | 300 kcal / 1,255 kJ | 600 kcal / 2,510 kJ |
Australian nutrition panels list energy in kilojoules, not calories, so it's worth converting your football session total into the same unit your food packaging uses. Multiply your calorie figure by 4.184 to get kilojoules. A 75 kg player in a 30-minute competitive tackle session burns about 300 kcal, which is roughly 1,255 kJ — a useful figure to weigh up against the energy value of a recovery snack or sports drink after training or a game.
How many calories does playing American football burn?
It depends on whether you're playing touch/flag or competitive tackle football, plus your body weight and how long you played. Using this calculator's two tiers for a 75 kg player over a 30-minute session: touch or flag football, light effort (MET 4.0) burns about 150 kcal (628 kJ), while competitive, full-contact tackle football (MET 8.0) burns about 300 kcal (1,255 kJ). Lighter or heavier players, and shorter or longer sessions, will see proportionally lower or higher totals, so enter your own weight and duration above for a personalised estimate.
How is calories burned playing American football calculated?
The calculator multiplies a MET (Metabolic Equivalent of Task) value for your style of play by your body weight in kilograms and your session duration in hours: calories = MET × body weight (kg) × duration (hours). Because most sessions are measured in minutes, the calculator takes your minutes input and divides by 60 before running the formula. The two MET values used — 4.0 for touch or flag football, light effort (code 15232) and 8.0 for competitive / tackle football (code 15210) — come directly from the Sports section of the 2024 Adult Compendium of Physical Activities. The kilocalorie result is then multiplied by 4.184 to give the equivalent figure in kilojoules, the unit used on Australian food labels.
Why is the touch/flag football value an estimate while the competitive/tackle value isn't?
Of the two MET values used on this page, only one is flagged in the 2024 Adult Compendium of Physical Activities as an estimated figure rather than a value confirmed by dedicated published research: touch or flag football, light effort (MET 4.0, code 15232). The competitive / tackle football value (MET 8.0, code 15210) is not flagged as estimated in the Compendium — it is a literature-supported figure. We disclose this distinction plainly rather than presenting both numbers as if they carried identical levels of evidence.
How does this differ from the Soccer and Rugby calorie calculators on this site?
American football is a completely different sport from soccer and from rugby league or rugby union, even though Australians often use the word "football" to mean soccer. American football (also called gridiron) is played with an oval ball, forward passes and a series of downs, using different equipment, rules & scoring to either soccer or rugby. Because the movement patterns, contact levels and energy costs are genuinely different, MegaCalcOnline treats this as its own calculator with its own MET values, separate from our Soccer Calorie Calculator and Rugby Calorie Calculator. If you're after either of those sports specifically, use the links in the Related Calculators section below.
Does body weight affect the result?
Yes. Because calories equal MET multiplied by body weight in kilograms multiplied by duration in hours, body weight is a direct multiplier in the formula. At the competitive/tackle tier (MET 8.0) for a 30-minute session, a 100 kg player burns roughly 400 kcal compared with about 240 kcal for a 60 kg player completing the identical session at the identical intensity.
What are the limitations of this calorie estimate?
This calculator uses standardised MET values that represent an average adult under typical conditions, so it can't account for every real-world variable. Playing position, how much time you actually spend in live play versus standing in a huddle or on the sideline, pad and equipment weight, playing surface, weather, and your own fitness level can all push your actual energy expenditure above or below the estimate shown here. The touch/flag tier in particular is a Compendium-flagged estimate rather than a value confirmed by dedicated published research, so treat that figure as a reasonable planning number rather than a precise measurement. For a more accurate individual figure, a wearable heart-rate or fitness tracker calibrated to your own physiology will generally outperform any MET-based calculator.
Does playing position affect how many calories you actually burn?
Yes, significantly, and this calculator can't capture that difference. Skill positions who cover a lot of ground, such as wide receivers, cornerbacks and running backs, tend to burn considerably more energy over a game than linemen or a quarterback, who take fewer total steps and spend more time in short bursts around the line of scrimmage or in the pocket. The MET values here represent an average across a style of play, not a specific position, so a receiver running deep routes all game will likely burn noticeably more than the estimate shown, while a lineman may burn somewhat less.