Estimate calories and kilojoules burned during a day's farm or station work — from light shed-cleaning and feed preparation, through moderate-effort mustering, stock feeding and crop harvesting, to vigorous hay baling and barn work — based on your body weight, effort level, and shift length. Agricultural work is one of Australia's most physically demanding occupations, with a large rural workforce spending entire shifts on their feet handling stock, machinery and crops, and this calculator uses verified MET (Metabolic Equivalent of Task) values from the 2024 Adult Compendium of Physical Activities to estimate the genuine energy cost of a working day on the land.
Farming and agricultural work burns calories across a wide range depending on the task, captured here as three tiers: light effort — cleaning animal sheds, preparing feed (MET 2.0), moderate effort — feeding animals, mustering or chasing cattle, harvesting crops (MET 4.8), and vigorous effort — baling hay, cleaning the barn (MET 7.8). The formula is calories = MET × body weight (kg) × duration (hours). An 80 kg person working an 8-hour shift burns 1,280 kcal (5,356 kJ) at light effort, 3,072 kcal (12,853 kJ) at moderate effort, and 4,992 kcal (20,887 kJ) at vigorous effort — nearly four times as much energy across a full shift of vigorous barn work and hay baling compared with light shed-cleaning duties.
| Effort Level | MET | Calories | Kilojoules |
|---|
The calculation uses a MET (Metabolic Equivalent of Task) value for your farming effort level, your body weight, and the length of your shift. This calculator uses three MET tiers taken directly from the Occupation Activities codes in the 2024 Adult Compendium of Physical Activities — light effort (code 11147, "Farming, light effort, (e.g., cleaning animal sheds, preparing animal feed)", MET 2.0), moderate effort (code 11146, "Farming, moderate effort (e.g., feeding animals, chasing cattle by walking and/or horseback, spreading manure, harvesting crops)", MET 4.8), and vigorous effort (code 11145, "Farming, vigorous effort (e.g., baling hay, cleaning barn)", MET 7.8). None of these three codes are flagged as estimated in the Compendium — all three are literature-supported entries.
| Effort Level | MET | Calories (80 kg, 8-hour shift) | Kilojoules |
|---|---|---|---|
| Light effort (cleaning sheds, preparing feed) | 2.0 | 1,280 kcal | 5,356 kJ |
| Moderate effort (feeding animals, mustering, harvesting crops) | 4.8 | 3,072 kcal | 12,853 kJ |
| Vigorous effort (baling hay, cleaning the barn) | 7.8 | 4,992 kcal | 20,887 kJ |
Farm and station work covers an enormous range of physical effort within a single day, which is exactly why this calculator uses three separate tiers rather than a single number. Light effort covers tasks such as cleaning out animal sheds and preparing feed — steady but unhurried work. Moderate effort steps up to the tasks that make up the bulk of a typical working day on an Australian property — feeding animals, mustering or chasing cattle on foot or horseback, spreading manure, and harvesting crops — all of which involve sustained walking, lifting and handling stock or equipment over hours at a time. Vigorous effort is the most demanding tier, covering baling hay and cleaning the barn, tasks that call on genuine full-body strength and stamina, particularly during harvest season when hay needs to be baled and stored quickly.
Farm work can genuinely contribute to physical activity, and the effort tiers above show why — moderate and vigorous farming tasks sit at or above the intensity range widely recognised as moderate-to-vigorous physical activity. Whether a day's farm work counts towards a particular physical activity guideline depends on the intensity and duration involved, and general population guidelines are published by the Australian Government Department of Health and the World Health Organization. This calculator provides a general estimate of energy expenditure only — it isn't personalised health advice, so anyone wanting to know how farm work fits into a specific health or fitness plan should refer to official guidelines or speak with a healthcare professional.
The table below holds effort level constant at the moderate tier (MET 4.8) for a full 8-hour shift, so you can see how much body weight alone changes the total.
| Body Weight | MET | Calories (8-hour shift) | Kilojoules |
|---|---|---|---|
| 60 kg | 4.8 | 2,304 kcal | 9,640 kJ |
| 65 kg | 4.8 | 2,496 kcal | 10,443 kJ |
| 70 kg | 4.8 | 2,688 kcal | 11,247 kJ |
| 80 kg | 4.8 | 3,072 kcal | 12,853 kJ |
| 90 kg | 4.8 | 3,456 kcal | 14,460 kJ |
| 100 kg | 4.8 | 3,840 kcal | 16,067 kJ |
Here body weight is fixed at 80 kg while both shift length and effort level change, so you can compare how much a harder tier and a longer shift each add to the total.
| Shift Length | Light (MET 2.0) | Moderate (MET 4.8) | Vigorous (MET 7.8) |
|---|---|---|---|
| 4 hours | 640 kcal / 2,678 kJ | 1,536 kcal / 6,427 kJ | 2,496 kcal / 10,443 kJ |
| 6 hours | 960 kcal / 4,017 kJ | 2,304 kcal / 9,640 kJ | 3,744 kcal / 15,665 kJ |
| 8 hours | 1,280 kcal / 5,356 kJ | 3,072 kcal / 12,853 kJ | 4,992 kcal / 20,887 kJ |
| 10 hours | 1,600 kcal / 6,694 kJ | 3,840 kcal / 16,067 kJ | 6,240 kcal / 26,108 kJ |
| 12 hours | 1,920 kcal / 8,033 kJ | 4,608 kcal / 19,280 kJ | 7,488 kcal / 31,330 kJ |
Australian nutrition panels list energy in kilojoules, not calories, so it's worth converting your shift's energy expenditure into the same unit your food packaging uses. Multiply your calorie figure by 4.184 to get kilojoules. An 80 kg person working a moderate-effort 8-hour shift burns about 3,072 kcal, which is roughly 12,853 kJ — a useful figure to weigh up against the energy value printed on the meals and snacks needed to refuel after a full day's farm work.
How many calories do farmers burn in a day?
It depends heavily on the mix of tasks and shift length. Using an 8-hour shift as a reference, an 80 kg person burns around 1,280 kcal at light effort (cleaning sheds, preparing feed), around 3,072 kcal at moderate effort (feeding animals, mustering, harvesting crops), and around 4,992 kcal at vigorous effort (baling hay, cleaning the barn). Most working days on a farm blend several of these effort levels together, so use the calculator above with your own weight and the hours spent at each effort level for a more personalised total.
Is farm work good exercise?
Yes, in the sense that moderate and vigorous farming tasks sit at or above the intensity range widely recognised as moderate-to-vigorous physical activity. Mustering cattle, feeding stock, harvesting crops, baling hay and cleaning barns all involve sustained walking, lifting and physical handling over hours at a time. This calculator gives a general energy-expenditure estimate only, not personalised fitness advice — for guidance on physical activity targets, refer to official sources such as the Australian Government Department of Health, or speak with a healthcare professional.
How is calories burned farming calculated?
The calculator multiplies a MET (Metabolic Equivalent of Task) value for your chosen farming effort level by your body weight in kilograms and by your shift duration in hours: calories = MET × body weight (kg) × duration (hours). The three MET values used — 2.0 for light effort, 4.8 for moderate effort, and 7.8 for vigorous effort — come directly from the 2024 Adult Compendium of Physical Activities. The result in kilocalories is then multiplied by 4.184 to give the equivalent figure in kilojoules, the unit used on Australian food labels.
What counts as light, moderate, and vigorous farm work?
Light effort covers tasks such as cleaning out animal sheds and preparing animal feed (MET 2.0). Moderate effort covers feeding animals, mustering or chasing cattle by walking and/or horseback, spreading manure, and harvesting crops (MET 4.8). Vigorous effort covers baling hay and cleaning the barn (MET 7.8). These three tiers come directly from the Occupation Activities section of the 2024 Adult Compendium of Physical Activities.
How does farm work compare to a gym workout?
It depends entirely on the task and intensity. Light farm duties (MET 2.0) sit below most structured gym workouts, moderate farm work such as mustering and feeding stock (MET 4.8) is broadly comparable to a solid cardio session, and vigorous work such as hay baling (MET 7.8) sits close to a genuinely vigorous gym workout in terms of MET value. The main practical difference is duration — a farm shift often sustains moderate-to-vigorous effort for many hours at a stretch, well beyond the length of a typical gym session, which is why total daily energy expenditure on a farm can be so high.
Does seasonal or harvest work burn more calories than routine farm duties?
Often, yes. Harvest periods typically involve more hours at moderate-to-vigorous effort — harvesting crops sits in the moderate tier (MET 4.8), while hay baling during harvest season sits in the vigorous tier (MET 7.8) — compared with routine shed-cleaning and feeding duties that make up more of the light-to-moderate range in quieter periods. Running your actual harvest-season hours through the calculator above, tier by tier, gives a more accurate picture of total energy expenditure than assuming a flat daily average across the whole year.
How many calories does mustering cattle burn?
Mustering or chasing cattle by walking and/or horseback falls under the moderate effort tier (MET 4.8) in this calculator. An 80 kg person mustering for a full 8-hour shift burns around 3,072 kcal (about 12,853 kJ). Shorter mustering sessions scale down proportionally — for example, a 3-hour muster for the same 80 kg person would burn around 1,152 kcal.
Does body weight change how many calories farm work burns?
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 moderate effort tier for a full 8-hour shift, a 100 kg person burns roughly 3,840 kcal compared with about 2,304 kcal for a 60 kg person completing the identical shift at the identical effort level.