Acres Per Hour Calculator

This acres per hour calculator helps you determine the speed and time required to complete agricultural tasks on your land. Even if you own a garden, you can use it as a lawn mowing time calculator.

Read on to learn more about the formulas behind this tool, along with suggestions for other useful calculators for your agricultural or gardening needs.

Acres per Hour Calculator

Tool’s Width (cm):
Speed (km/h):
Area per Hour (hectares/hour):
Calculate Area per Hour
Plot Area (hectares):
Time to Complete (hours):	hrs min
Calculate Mowing Time
Overlap (%):

How to Use the Acres Per Hour Calculator

Whether you’re plowing, seeding, fertilizing, or mowing your lawn, the acres per hour calculator is easy to use for any task.

To calculate how many acres per hour you can cover, you’ll need to input:

• The effective width of your tool (e.g., mower, plow, combine harvester)
• The average speed of your machine

If you want to calculate how long it will take to complete the work on your field, lawn, or garden, provide:

• The effective width of your tool
• The average speed of work
• The area of your plot (in acres, hectares, or any other unit)

🔎 If you’re unsure about the size of your plot, you can use our area calculator to find it, whether it’s a regular or irregular shape.

Formulas Behind the Mowing Time Calculator

The calculator uses two formulas. The first formula calculates the area you can cover per hour:

aps=tw × ts × (1−o)

Where:

• aps: Area per second
• tw: Tool width (e.g., mower width)
• ts: Machine speed
• o: Overlap percentage

🙋 Machines typically don’t use the full effective width due to overlap. By default, the calculator assumes a 10% overlap, but you can adjust this to 0% if overlap isn’t needed. You can modify this in the “Overlapping Area” section.

The second formula estimates the time required to complete the task:

Where:

• t: Time needed to finish the task
• a: Plot area
• aps: Area per second, calculated using the first formula

These simple formulas allow you to accurately estimate the time and speed needed for your agricultural or lawn maintenance tasks.

Factors Affecting Mowing Efficiency

There are several factors that influence how many acres can be mowed in a given time. These include:

1. Tool Width: The wider your mower or agricultural tool, the more ground you can cover in one pass. Tool width is typically measured in centimeters (cm). Larger mowers are able to cover more area in a shorter amount of time.
2. Speed: The faster your machine moves, the more ground it covers per hour. Speed is usually measured in kilometers per hour (km/h). However, faster speeds can sometimes lead to less precise work, so speed must be balanced with the quality of mowing or plowing.
3. Overlap: Overlap refers to the amount of tool width that overlaps with the previous pass to ensure even coverage. A common overlap percentage is 10%, meaning that only 90% of the tool’s width is effectively used. Reducing overlap increases efficiency but can risk uneven mowing.
4. Plot Area: The size of the land being worked on is crucial for determining how long the work will take. Larger plots will naturally require more time to complete.

Example: Understanding the Acres Per Hour Calculator

Let’s walk through a real-world example to understand how the acres per hour calculator works.

Scenario

You own a field that needs mowing, and you have the following information:

• Tool width: 150 cm (1.5 meters)
• Speed of mower: 6 km/h
• Overlap: 10%
• Plot size: 5 hectares

Step 1: Calculate Effective Width

The first step is to adjust the tool width based on the overlap. Since the overlap is 10%, it means that only 90% of the tool’s width is used effectively.

Effective width = Tool width × (1 – Overlap)
Effective width = 1.5 m × (1 – 0.10) = 1.35 meters

So, 1.35 meters is the actual width used for mowing.

Step 2: Calculate Area Per Hour

Next, you can calculate the number of acres you can mow per hour. Since you’re moving at 6 km/h and the effective width is 1.35 meters, the formula is:

The division by 10 converts the result into hectares per hour.

This means that with the given parameters, you can mow 0.81 hectares per hour.

Step 3: Calculate Total Time to Mow the Plot

The next step is to determine how long it will take to mow the entire plot, which is 5 hectares in size. To do this, divide the total plot size by the area covered per hour:

So, it will take approximately 6 hours and 10 minutes to mow the entire 5-hectare plot.

Step 4: Calculate Mowing Efficiency Over Different Hours

Once you know how many hectares you can mow in one hour, you can easily calculate how many hectares can be mowed in multiple hours. Let’s say you want to know how much area you can mow in 2, 3, 4, and 5 hours:

• 1 hour: 0.81 hectares
• 2 hours: 0.81 × 2 = 1.62 hectares
• 3 hours: 0.81 × 3 = 2.43 hectares
• 4 hours: 0.81 × 4 = 3.24 hectares
• 5 hours: 0.81 × 5 = 4.05 hectares

You can mow approximately 4.05 hectares in 5 hours.

Summary of the Calculator’s Usage

This calculator is extremely helpful for farmers and gardeners who need to plan their agricultural activities. By inputting the tool’s width, speed, and overlap, users can estimate how much area can be covered per hour. Additionally, it allows you to predict how long a job will take based on the size of your plot.