Mowing a lawn burns approximately 210–385 calories per hour for an average adult weighing 155 lb (70 kg), depending on the type of mower you use and the effort involved. A riding mower burns the fewest calories (around 210 per hour), a walk-behind power mower burns a moderate amount (around 270 per hour), and a manual push reel mower or mowing on hilly terrain burns the most (330–385 per hour). The difference is significant: a manual reel mower can burn roughly 57% more calories than a riding mower in the same amount of time.
This estimate is based on the Metabolic Equivalent of Task (MET) values for different lawn mowing activities. MET is a standard measure used to estimate energy expenditure, where 1 MET equals the energy expended while sitting quietly. By understanding the MET for your specific mowing activity and factoring in your body weight, you can calculate a personalized calorie burn estimate. Below, we break down the numbers by mower type and body weight, explain the science behind the calculation, and explore how lawn mowing fits into your overall exercise routine.
Quick Calorie Burn Estimates by Mower Type
Not all mowing is created equal. The type of mower you use dramatically changes the physical effort required and, consequently, the number of calories you burn. Here are the estimated calories burned per hour for a person weighing 155 lb (70 kg):
- Push Reel Mower (Manual): ~330–385 calories/hour. This is the most physically demanding option, requiring you to push the mower and power the cutting blades with your own effort.
- Walk-Behind Power Mower (Gas/Electric): ~270 calories/hour. The engine powers the blades, but you still burn significant calories pushing the mower and walking behind it.
- Riding Mower: ~210 calories/hour. This is the least strenuous option, as you are seated and steering. The calorie burn comes primarily from the vibration and minor movements involved in operation.
As you can see, choosing a push mower over a riding mower can nearly double your calorie burn for the same task. If your primary goal is exercise, the type of equipment you use is the single most important factor.
Understanding MET Values and the Calorie Formula
To understand why these estimates vary, it helps to know about MET (Metabolic Equivalent of Task). A MET value quantifies the energy cost of a physical activity. One MET is the energy you burn while sitting still. Activities with higher MET values burn more calories.
Based on general exercise science data, the approximate MET values for different lawn mowing activities are:
- Mowing lawn, push reel mower: MET of 5.0
- Mowing lawn, walk-behind power mower: MET of 4.5
- Mowing lawn, riding mower: MET of 3.5
You can use these MET values to calculate your personal calorie burn with a standard formula:
Calories Burned = MET × 3.5 × Body Weight (in kg) ÷ 200 × Time (in minutes)
For example, let’s calculate the burn for a 155 lb (70 kg) person using a walk-behind power mower (MET 4.5) for 60 minutes:
Calories = 4.5 × 3.5 × 70 ÷ 200 × 60 = 330.75 calories. This is a precise calculation, and real-world results can vary based on factors like terrain and pace. The estimates provided in this article are rounded for practical use.
Calorie Burn by Body Weight
Your body weight is a key factor in calorie expenditure. A heavier person burns more calories performing the same activity than a lighter person because it takes more energy to move a larger mass. Here’s how the estimates scale across common weight ranges for a 60-minute session with a walk-behind power mower (MET 4.5):
- 130 lb (59 kg): ~230 calories
- 155 lb (70 kg): ~270 calories
- 180 lb (82 kg): ~315 calories
- 205 lb (93 kg): ~360 calories
To find your personal estimate, use the formula in the previous section with your actual weight. This allows you to track your progress more accurately if you are using lawn mowing as part of a fitness or weight management plan.
Factors That Increase or Decrease Calorie Burn
The baseline estimates assume mowing a flat, average-sized lawn at a steady pace. Several real-world variables can significantly increase or decrease your actual calorie burn:
- Terrain and Slope: Mowing on hills or uneven ground requires more effort to push the mower and maintain balance, increasing calorie burn.
- Pace and Intensity: Walking faster and pushing the mower more vigorously will elevate your heart rate and burn more calories. Taking breaks or moving slowly will lower the burn.
- Additional Tasks: Activities like bagging clippings, raking, or using a string trimmer before or after mowing add to the total energy expenditure of the yard work session.
- Mower Weight and Condition: A heavier mower or one with dull blades can be harder to push, increasing the effort required.
- Duration: Calorie burn is cumulative. Mowing for 90 minutes will burn 50% more calories than mowing for 60 minutes, assuming a consistent pace.
Consider these factors when estimating your burn. A challenging yard with slopes and additional tasks will always burn more calories than a quick, flat pass with a riding mower.
Is Lawn Mowing Good Exercise?
Absolutely. Mowing a lawn, especially with a walk-behind mower, qualifies as moderate-intensity aerobic exercise. Health organizations like the American Heart Association recommend at least 150 minutes of moderate-intensity aerobic activity per week for heart health and weight management.
For context, a 30-minute session pushing a power mower can contribute significantly to this weekly goal. If you mow your lawn once a week for an hour, you are completing two-thirds of the recommended weekly aerobic activity in one chore. It improves cardiovascular health, strengthens muscles (particularly in the legs, core, and arms), and burns calories effectively.
While it may not replace structured workouts like running or cycling for high-intensity training, lawn mowing is a highly accessible and practical way to incorporate consistent physical activity into your routine. It’s exercise that doubles as a necessary household task.
Riding vs. Push Mowing: Which Burns More Calories?
The choice between a riding mower and a push mower has a clear winner for calorie burn: the push mower. As noted, a manual reel mower burns about 57% more calories than a riding mower, and a walk-behind power mower burns about 28% more.
The reason is straightforward: with a push mower, you are providing the locomotion. You are walking and exerting force to move the machine. With a riding mower, the engine does the work of moving the mower, and you are primarily steering. The physical effort is minimal, comparable to light activity.
Is the extra burn worth the effort? It depends on your goals. If you are short on time and want to maximize calorie expenditure during yard work, a push mower is the better choice. If you have a very large lawn, mobility issues, or prioritize time savings over exercise, a riding mower is perfectly reasonable. You can still burn calories and get some light activity, just not as much as with a push mower.
Frequently Asked Questions
Does mowing count as moderate-intensity exercise?
Yes. Using a walk-behind power mower typically has a MET value of 4.5, which falls within the moderate-intensity range (3.0–6.0 METs). This means it elevates your heart rate and breathing, providing cardiovascular benefits.
How many calories does a 200 lb person burn mowing?
A person weighing 200 lb (91 kg) would burn approximately 350 calories per hour using a walk-behind power mower. Using the calorie formula, the burn increases proportionally with body weight.
Does bagging grass clippings burn more calories?
Yes. The additional tasks of stopping, bending, lifting bags, and disposing of clippings add to the overall energy expenditure of the mowing session, increasing the total calorie burn beyond just pushing the mower.
Is a reel mower better for exercise than a power mower?
Generally, yes. A manual reel mower requires you to push harder to spin the blades, which increases the effort and calorie burn compared to a self-propelled or standard push power mower. It provides a more vigorous workout.
