An area of 200 feet by 200 feet is 0.92 acres.
See below calculations for how many acres is 200 feet by 200 feet.

Calculations of area for 200 feet by 200 feet:
- Area = 200 feet x 200 feet = 40,000 square feet
- 1 acre = 43,560 square feet
- 40,000 / 43560 = 0.92 acres
Are any sports played on a 0.92 acre field?
- A football field not including the end zones is 1.1 acres
How long would it take to mow a 200 foot x 200 foot lawn?
Answer: 90 minutes
Calculations:
- Average walking speed with lawn mower is 5 km/hr or 4.5567 feet per second (273.4 feet per minute)
- Let’s use a 21 inch wide mower. So you mow 21 inch lanes at a time.
- 200 feet wide means the 21 inch (1.75 foot) mower will need (200 / 1.75) 114 lanes to complete the mow
- The length of the lawn is 200 feet so you complete each lane in (200 feet / 273.4 feet per minute) 44 seconds
- 114 lanes x 44 seconds = 83 minutes 24 seconds
- Assuming some overlap of lanes and turn around time let’s just round up to 90 minutes or 1.5 hrs to mow a 200 foot x 200 foot lawn.