Mowing Yard Steps and Calorie Burn

Based on the provided search results, we can estimate the time it takes to mow a 15,000 sq ft yard with a 21-inch mower. While there are varying opinions and experiences shared, we can aggregate the information to make an informed estimate.

A user with a 12,000 sq ft yard reported taking around 1 hour 20 minutes to mow, including trimming and blowing (snippet from “Good mower for 12,000 sq ft lawn”).
Another user with a 10,000 sq ft yard using a 21-inch self-propelled mower took around 45-60 minutes to mow (snippet from “How Long Does It Take to Mow a Lawn? Mower Calculator”).
A user with a 6,000 sq ft yard took around 45 minutes to mow with a 21-inch mower (snippet from “How big a yard is reasonable to push mow? [Archive] – Sawmill Creek Woodworking Community”).

Considering these estimates, it’s reasonable to assume that mowing a 15,000 sq ft yard with a 21-inch mower would take around 2-3 hours, depending on the terrain complexity, operator experience, and mower efficiency.

As for the number of steps taken, it’s difficult to provide an exact count without knowing the specific mowing pattern and pace of the operator. However, we can make an educated estimate based on the average walking speed and stride length.

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Average walking speed: 3-4 miles per hour (mph) or 4.8-6.4 kilometers per hour (km/h)
Average stride length: 2.5-3 feet (0.76-0.91 meters)

Assuming a moderate pace and average stride length, let’s estimate the total distance covered during mowing:

15,000 sq ft ≈ 0.347 acres (based on 43,560 sq ft per acre)
Assuming a rectangular lawn with an average width of 150 feet (45.72 meters), the total perimeter is approximately 600 feet (182.88 meters)

Using the estimated walking speed and stride length, we can calculate the total number of steps:

Total distance covered: 600 feet (182.88 meters)
Average stride length: 2.75 feet (0.84 meters) (midpoint of the estimated range)
Total steps: 600 feet / 2.75 feet per stride ≈ 218 steps (rounding up to account for any irregularities)

Keep in mind that this is a rough estimate and the actual number of steps may vary significantly depending on the mowing pattern, pace, and individual stride length.

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Regarding the calories burned, it’s challenging to provide an exact figure without knowing the operator’s weight, age, and fitness level. However, we can estimate the approximate caloric expenditure based on the American Council on Exercise (ACE) guidelines for push mowing:

Moderate-intensity push mowing (2-3 hours): 400-600 calories burned (approximate range)

Please note that this is a broad estimate and may vary depending on individual factors. Factors such as body composition, fitness level, and pace can significantly impact the actual caloric expenditure.

In summary:

Estimated time to mow a 15,000 sq ft yard with a 21-inch mower: 2-3 hours
Estimated number of steps: approximately 218 (based on a moderate pace and average stride length)
Estimated calories burned: 400-600 (approximate range, based on moderate-intensity push mowing)