The Farm Area Calculator is a practical tool designed to help farmers, landowners, surveyors, and agricultural planners quickly determine the total land area of a farm. Whether you’re planning to grow crops, manage livestock, or allocate zones for specific activities, this calculator ensures precise land measurement using simple geometric formulas. It supports both regular rectangular plots and irregularly shaped sections like triangles, trapezoids, and circles. Users can input their dimensions in various units and convert between square meters, acres, and hectares as needed.
This calculator belongs to the Land Measurement and Agricultural Planning Calculators category. It simplifies decision-making in land investment, irrigation planning, crop zoning, fencing, and machinery allocation.
formula of Farm Area Calculator
Farm Area = Length × Width
Where:
Length = measured length of the land (in meters, feet, or another consistent unit)
Width = measured width of the land (same unit as length)
Farm Area is expressed in square units (e.g., m², ft², acres, or hectares)
For Irregular Land Shapes:
- Triangle (Base and Height known):
Area = (Base × Height) / 2 - Trapezoid:
Area = (1/2) × (Base₁ + Base₂) × Height - Circle (e.g., round irrigation areas):
Area = π × (r²)
r = radius of the circle - Multiple Section Fields:
Total Farm Area = Σ (Individual Section Areas)
Standard Unit Conversions:
1 hectare = 10,000 m²
1 acre = 4,046.85642 m²
1 ft² = 0.092903 m²
Commonly Used Values and Conversions
Area Type | Dimensions | Approx Area (m²) | Approx Area (acres) | Approx Area (hectares) |
---|---|---|---|---|
Small Plot | 30 m × 20 m | 600 | 0.15 | 0.06 |
Mid-sized Field | 100 m × 75 m | 7,500 | 1.85 | 0.75 |
Large Rectangle | 200 m × 150 m | 30,000 | 7.41 | 3.00 |
Circular Farm | Radius = 50 m | 7,853.98 | 1.94 | 0.79 |
Triangular Plot | Base = 80 m, Height = 60 m | 2,400 | 0.59 | 0.24 |
This table helps quickly estimate areas for common plot sizes or shapes without calculating each time.
Example of Farm Area Calculator
Suppose you own a farm divided into three sections:
- A rectangular field 100 m long and 80 m wide
- A triangular section with base 60 m and height 40 m
- A circular irrigation zone with radius 20 m
Step 1: Rectangular Area
= 100 × 80 = 8,000 m²
Step 2: Triangular Area
= (60 × 40) / 2 = 1,200 m²
Step 3: Circular Area
= π × 20² = 1,256.64 m²
Total Farm Area
= 8,000 + 1,200 + 1,256.64 = 10,456.64 m²
To convert to acres:
= 10,456.64 / 4046.85642 ≈ 2.58 acres
To convert to hectares:
= 10,456.64 / 10,000 = 1.05 hectares
Most Common FAQs
You can break the land into known shapes (triangles, circles, trapezoids), calculate each part, and then add them together for the total.
Use square meters or hectares for precision. Hectares are most common in agriculture, especially for seed and fertilizer calculations.
Yes, most calculators include a built-in unit converter so you can easily switch between m², ft², acres, and hectares depending on your location and requirement.