Land Area Calculator & Converter & Acre · Hectare · Bigha · m²
Converts acre ↔ hectare
“Power users leave notes. That is how you can tell the power users.
Work out a plot's area from its shape, or convert any value instantly between acre, hectare, m², ft², bigha, guntha, cent, are, marla and kanal — the starting point for every farm calculation.
Measure your plot
Computed area: 5,000 m². For odd-shaped fields, split into rectangles and triangles and add them up.
Next: most farming calculators here take an area — plug this figure into seed-rate, fertilizer, yield and profit tools to scale everything correctly. Bigha varies by region; this uses the common North-India pucca bigha.
Local units like bigha, marla and kanal vary by region — confirm the local definition for legal or sale purposes.
Land area — key facts
- 1 acre
- 4,046.86 m² · 43,560 ft²
- 1 hectare
- 10,000 m² · 2.471 acres
- 1 acre
- ≈ 0.405 hectare
- 1 acre
- 100 cent · 40 guntha
- 1 bigha (N-India)
- ≈ 2,529 m² · 0.625 acre
- 1 are
- 100 m²
- Rectangle area
- length × width
- Privacy
- Runs in your browser; nothing uploaded
Get the area right before anything else
Area is the foundation of farm planning — seed, fertilizer, manure, irrigation water, yield and profit all scale with it, so an error here multiplies through every later calculation. This tool does two jobs. From a shape and dimensions it computes the area of a plot (rectangle, triangle, circle or trapezium), and as a unit converter it turns any value between the eleven land units farmers actually use, from the international acre and hectare to local bigha, guntha, cent, marla and kanal.
That matters in regions where land is bought in bigha, taxed in hectares and planned in acres all at once. Compute or convert once here, then carry the figure into the seed-rate, fertilizer, yield and profit tools so everything lines up. For odd-shaped fields, break the plot into simple rectangles and triangles, add the parts, and remember that traditional units vary locally — confirm the regional definition for any official transaction.
Measure a plot
Compute area from a rectangle, triangle, circle or trapezium in metres.
Convert any unit
Switch instantly between acre, hectare, m², ft², bigha, guntha, cent and more.
Buy & sell land
Compare plots quoted in different units on equal terms before you deal.
Feed other tools
Use the figure in seed-rate, fertilizer, yield and profit calculators.
Frequently Asked Questions
How do I calculate the area of my field?+
Pick the shape closest to your plot and enter its dimensions in metres — length × width for a rectangle, ½ × base × height for a triangle, π × radius² for a circle, or ½ × (a + b) × height for a trapezium. The tool computes the area and converts it to every land unit. For irregular fields, split them into rectangles and triangles and add the parts.
How many square feet are in an acre?+
One acre is exactly 43,560 square feet (4,046.86 m²). The tool shows this and every other conversion the moment you enter a value.
How do I convert acres to hectares?+
Multiply acres by 0.404686 to get hectares (1 acre = 0.404686 ha), or divide hectares by that figure to go the other way. One hectare equals about 2.471 acres.
What is a bigha in acres?+
Bigha is a traditional unit that varies by region. This tool uses the common North-India pucca bigha of about 2,529 m², which is roughly 0.625 acre (so 1 acre ≈ 1.6 bigha). Always confirm the local bigha definition for legal or sale purposes.
How many cents are in an acre?+
There are 100 cents in an acre, so one cent is about 40.47 m² (435.6 ft²). The cent is widely used in South India for small plots.
What are marla and kanal?+
Marla and kanal are land units common in Pakistan and northern India. This tool uses a marla of about 25.3 m² and a kanal of about 505.9 m² (20 marla = 1 kanal); regional definitions vary, so verify locally.
How do I measure an irregular plot?+
Divide the plot into simple shapes — rectangles and triangles — measure each, compute their areas here, and add them together. For surveyed plots, a professional measurement or GPS area is more accurate than splitting by eye.
Why does it ask for metres?+
Using metres keeps the maths consistent (a square metre is the base unit), and the tool then converts the result into every land unit including feet-based ones. If you measured in feet, convert to metres first (1 ft = 0.3048 m) or use the unit converter mode.
Why do I need the area for other tools?+
Almost every farming calculation scales with area — seed rate, fertilizer, manure, irrigation water, yield and profit. Getting an accurate area first means every downstream figure is right, which is why this tool feeds the rest of the Farming Hub.
Is the conversion exact?+
The metric and acre/foot conversions are exact, internationally defined values. Traditional units (bigha, marla, kanal, cent) have regional variants — this tool uses widely accepted figures, but check the local standard for official transactions.
Related farming tools
1900+ free tools, zero sign-up
Calculators, developer & SEO utilities, data, content, hardware and farming — all instant, private and in your browser.
Calories Kg
Open FarmingHoney Extraction Yield Calculator
Free honey extraction yield calculator. Enter your frames and honey per frame to get the raw honey and its val
Open Dev & SEOCSV Pro
Professional CSV processor: analyze, validate, compare, clean, merge and transform CSV files in your browser.
Open Niche10-10-10 Decision Making Tool
Diamond-grade decision making tool with the 10-10-10 framework dial (Suzy Welch), Monte Carlo regret-score pan
Open ContentCSS Color Code Generator
Turn one color into shippable CSS: every format, a custom property, color-mix() hover/active states, relative-
Open HardwareCPU GPU Compare Pro
Compare any two CPUs or GPUs side by side: metric-by-metric table with the winner highlighted, the performance
Open ProductivityPassword Strength Tester
Open ProAll 112 Techniques (Dharanas)
Browse the meditation techniques (dharanas) of the Vigyan Bhairav Tantra by method — breath, sound, void, ligh
Open CalculatorCalories Lbs
Open FarmingHoney Moisture Reduction Calculator
Free honey moisture reduction calculator. Honey should sit below about 18–20% moisture or it ferments; enter t
Open Dev & SEOcURL to Documentation Converter
Convert raw cURL commands into structured API documentation. Automatically extract endpoints, methods, headers
Open NicheE-commerce ROI Calculator
Diamond-grade e-commerce ROI calculator with a traffic → cart → checkout → won funnel and a margin breakdown b
Open ContentDesign Token Generator
Turn brand colors into a complete color token system — OKLCH 50–950 scales per role plus light & dark semantic
Open HardwareHardware Benchmark Database Pro
Searchable, sortable CPU and GPU database: normalized performance index, perf-per-dollar and perf-per-watt, ti
Open ProductivityPassword Tools
Test password strength against real standards (NIST 800-63B, OWASP ASVS), check against known breaches via k-a
Open ProFind a Meditation Technique by Mood & Time
Tell us how you feel and how long you have — get matched Vigyan Bhairav Tantra techniques for anxiety, restles
Open CalculatorCalories Running
Open FarmingIce Requirement (Cold Chain) Calculator
Free ice requirement calculator for the cold chain. Ice keeps fish, milk and produce cold in transit by absorb
Open Dev & SEOGraphQL Query Example Generator
Paste a GraphQL schema and generate runnable example operations: queries and mutations for any root field, typ
Open NichePartnership ROI Calculator
Diamond-grade partnership ROI calculator with a multi-channel partner stream graph and rev-share carve-out. Be
Open ContentCSS Gradient Generator
Build production-ready CSS gradients — linear, radial and conic — with unlimited color stops and any angle, a
Open HardwareHardware Specifications Explorer
Faceted CPU & GPU specification explorer: filter by type, brand, process node, release year and TDP, then read
Open ProGuided Practice
A distraction-free guided meditation session for any Vigyan Bhairav Tantra dharana — breath-paced timer, optio
Open Calculator