Gaj to Sq Ft: Plot Size Converter, Chart and Complete Guide

Introduction

If you have ever visited a plotting site in Lucknow, you have probably heard a dealer say, “This is a 150 gaj plot,” while the map in your hand shows the size in square feet. Suddenly you are doing mental maths in the middle of a site visit. Knowing the gaj to sq ft conversion is the first skill every plot buyer in North India needs, because price quotes, registry papers, and construction plans often use different units.

The good news is that the conversion is simple. One gaj equals 9 square feet, and once you remember that single number, you can convert any plot size in seconds. In this guide, we explain the formula, share ready-to-use conversion charts, cover related units like bigha, biswa, and decimal, and show what you can actually build on popular plot sizes. Whether you are buying your first plot or comparing township options, this plot size converter guide will help you avoid costly confusion.

What Is a Gaj? Understanding the Unit

In Hindi, “gaj” literally means “yard.” In real estate, it refers to the square yard, which is the unit of area, not the unit of length. So when someone says “100 gaj plot,” they mean 100 square yards, not a plot that is 100 yards long.

This unit is deeply rooted in the property market of Uttar Pradesh, Delhi NCR, Punjab, Haryana, Rajasthan, and Madhya Pradesh. In Lucknow, Kanpur, and nearby towns, plots in new colonies and townships are almost always sold by the gaj. Developers advertise rates like “per gaj,” and buyers compare plots by gaj size.

You will see several names for the same unit:

• Gaj
• Square yard (sq yd)
• Sq. gaj
• Gajam (in parts of South India, with slightly different usage)

For all practical purposes in Uttar Pradesh, 1 gaj = 1 square yard.

How gaj to sq ft Conversion Works

The logic is easy to remember. A yard is 3 feet long. A square yard is a square that is 3 feet by 3 feet. Multiply them and you get 9 square feet.

Formula:

Area in sq ft = Area in gaj × 9

Examples:

• 50 gaj × 9 = 450 sq ft
• 100 gaj × 9 = 900 sq ft
• 150 gaj × 9 = 1,350 sq ft
• 200 gaj × 9 = 1,800 sq ft

So if someone asks, “1 gaj kitne sq ft ka hota hai?” the answer is 9 square feet.

To convert in the other direction, divide by 9:

Area in gaj = Area in sq ft ÷ 9

For example, a 1,200 sq ft plot is 1,200 ÷ 9 = 133.33 gaj.

A quick mental trick

If you need to calculate on the spot, multiply by 10 and subtract the gaj value once. For 120 gaj: 120 × 10 = 1,200, minus 120 = 1,080 sq ft. It works because multiplying by 9 is the same as multiplying by 10 and subtracting one.

Gaj to Sq Ft Conversion Chart (50 to 500 Gaj)

Here is a ready reference chart for the most common plot sizes sold in Lucknow and across Uttar Pradesh. Bookmark it or screenshot it before your next site visit.

Plot size (gaj)	Area (sq ft)	Area (sq m, approx.)
50 gaj	450 sq ft	41.8 sq m
75 gaj	675 sq ft	62.7 sq m
100 gaj	900 sq ft	83.6 sq m
120 gaj	1,080 sq ft	100.3 sq m
125 gaj	1,125 sq ft	104.5 sq m
150 gaj	1,350 sq ft	125.4 sq m
200 gaj	1,800 sq ft	167.2 sq m
250 gaj	2,250 sq ft	209.0 sq m
300 gaj	2,700 sq ft	250.8 sq m
400 gaj	3,600 sq ft	334.5 sq m
500 gaj	4,500 sq ft	418.1 sq m

Use this gaj to square feet table as a quick check whenever a seller quotes a figure that sounds too good to be true.

Sq Ft to Gaj Chart (Reverse Conversion)

Many architects, contractors, and bank documents use square feet, so you will often need to go from sq ft to gaj as well.

Area (sq ft)	Area (gaj)
600 sq ft	66.67 gaj
800 sq ft	88.89 gaj
1,000 sq ft	111.11 gaj
1,200 sq ft	133.33 gaj
1,500 sq ft	166.67 gaj
1,800 sq ft	200 gaj
2,000 sq ft	222.22 gaj
2,400 sq ft	266.67 gaj
3,000 sq ft	333.33 gaj

Notice that a “1,000 sq ft plot” is not a 100 gaj plot. It is about 111 gaj. This small gap is where many first-time buyers get confused, so always confirm which unit a quote refers to.

Gaj vs Square Yard vs Square Metre: Quick Comparison

Beyond gaj and square feet, you may come across square metres, especially in government documents, development authority maps, and newer layouts.

• 1 gaj = 1 square yard = 9 sq ft
• 1 gaj = 0.8361 sq m
• 1 sq m = 10.764 sq ft
• 1 sq m = 1.196 gaj

If an authority map lists a plot as 167 sq m, that is roughly 200 gaj. Being able to move between these units helps you cross-check every document you receive.

Bigha, Biswa, Decimal and Acre: Land Units Used in Uttar Pradesh

When you buy a plot inside a developed township, the unit is almost always gaj or sq ft. But if you are looking at agricultural land, a farmhouse plot, or an older land record, you will meet traditional units.

Acre and hectare (standard units)

• 1 acre = 4,840 gaj = 43,560 sq ft
• 1 hectare = 11,960 gaj = about 107,639 sq ft

Decimal (dismil)

• 1 decimal = 48.4 gaj = 435.6 sq ft

Bigha and biswa

This is where you must be careful. The size of a bigha is not uniform across India, and it can differ between districts within Uttar Pradesh. In many parts of UP, the commonly used revenue bigha is roughly 27,225 sq ft (about 3,025 gaj), and 1 bigha is divided into 20 biswa, which makes 1 biswa about 1,361 sq ft (around 151 gaj). Other areas follow different local standards.

Because of this variation, never rely on a dealer’s verbal conversion for bigha. Instead:

1. Check the area written in the Khatauni or Khasra on the Bhulekh UP portal.
2. Ask the local lekhpal or tehsil office what the prevailing bigha is for that village.
3. Request the plot area in sq m or sq ft on the sale deed.

If you want a plot area calculator for any of these units, a good converter should let you switch between gaj, sq ft, sq m, bigha, biswa, and acre in one place.

Popular Plot Sizes in Lucknow and What You Can Build

Plot size decides your budget, your floor plan, and your resale value. Here is how the most common plot sizes translate into real homes.

50 gaj plot (450 sq ft)

Compact and budget-friendly. Suitable for a small house with one or two bedrooms, usually built across two or three floors. Popular with first-time buyers and investors targeting rental income.

100 gaj plot (900 sq ft)

The most searched size, and the question “what is a 100 gaj plot?” comes up constantly. A 100 gaj plot can comfortably hold a 2 or 3 BHK home, often as a ground-plus-one design. It is an excellent balance between affordability and liveability, and it tends to have good resale demand.

150 gaj plot (1,350 sq ft)

Gives you room for a 3 BHK with a small garden, parking, or a front setback. A strong choice for families who want space without paying for a large plot.

200 gaj plot (1,800 sq ft)

A favourite for independent houses and duplex designs. You can plan a spacious 3 or 4 BHK, a car porch, and some open area. Many buyers consider the 200 gaj plot size the sweet spot for long-term family living.

300 gaj and above (2,700+ sq ft)

Best for villas, larger families, or those who want lawns, multiple parking bays, and future expansion. These plots usually cost more per gaj in prime locations, but they offer premium lifestyle value.

Plot Area vs Built-Up Area: Do Not Mix Them Up

One of the biggest misunderstandings in plot buying is assuming that a 100 gaj plot lets you build 900 sq ft on every floor. In reality, the buildable area depends on rules set by the local development authority or the township’s own guidelines.

Key terms to know:

• Plot area: The total land you own, for example 900 sq ft for 100 gaj.
• Ground coverage: The percentage of the plot you may cover with construction on the ground floor.
• Setbacks: Mandatory open space left in the front, rear, and sides.
• FAR (Floor Area Ratio): The total built-up area allowed across all floors relative to plot area.
• Carpet area: The usable floor area inside your home, excluding walls.

Setback and coverage rules vary by authority and plot category, so always confirm the current norms with the relevant authority or a licensed architect before finalising a design. A plot that looks large on paper can end up with a smaller usable footprint than you expected.

How to Measure a Plot Correctly

Before you pay, verify the area yourself. A discrepancy of even 5 gaj can mean a loss of lakhs.

1. Check the sale deed and layout map. The registered area should match the map approved for the project.
2. Measure the sides on site. Use a measuring tape or laser distance meter, and note the length and width.
3. Use the right formula. For a rectangle, area = length × breadth. For example, 30 ft × 30 ft = 900 sq ft = 100 gaj.
4. For irregular plots, divide the shape into triangles and rectangles, calculate each, and add them up. Or ask a surveyor to do it.
5. Get an independent survey if the plot is large or the price is high.

Common Mistakes Buyers Make While Converting Plot Size

1. Confusing gaj with a length unit. Gaj in property means area. A 100 gaj plot is not 100 yards long.

2. Treating 1,000 sq ft as 100 gaj. It is about 111 gaj. You may end up paying for or expecting a different size than you receive.

3. Ignoring super area and loading. In apartments, the price is quoted on super built-up area. For plots, the rate is on actual land area, so this distinction rarely applies, but check that no road share or common area is being added.

4. Trusting verbal bigha conversions. As explained above, the bigha varies by region. Always verify using land records.

5. Rounding off aggressively. A dealer who rounds 167 sq m to “200 gaj” may be giving you an inflated number. 167 sq m is actually about 199.7 gaj, which is acceptable, but 160 sq m would be about 191 gaj. Always calculate the exact figure.

6. Not comparing price per sq ft. If one developer quotes per gaj and another per sq ft, convert both to the same unit before comparing.

How to Compare Plot Prices Using Gaj and Sq Ft

To compare fairly, convert every offer into price per sq ft.

Price per sq ft = Price per gaj ÷ 9

Here is an illustrative example (figures are for demonstration only, not actual market rates):

• Developer A offers a plot at ₹25,000 per gaj, which is about ₹2,778 per sq ft.
• Developer B offers a plot at ₹2,500 per sq ft, which is ₹22,500 per gaj.

At first glance, A’s number looks bigger, but when you convert to the same unit, B is cheaper per unit of land. Always check what is included, such as development charges, registry costs, club membership, and preferential location charges, since these change the true cost.

To estimate your total cost, use this simple approach:

Total cost = (Plot area in gaj × rate per gaj) + registry and stamp duty + development and other charges

Tips for Buying a Plot

Knowing the gaj to square feet value is only the starting point. Before you finalise a purchase, make sure you also:

• Verify ownership and title through the registered documents and land records.
• Confirm the approval status of the layout and whether the project is approved by the relevant authority.
• Check the road width and access to the plot, including whether the road is ready or only on paper.
• Look at the plot’s shape and facing. Regular, rectangular plots are easier to build on and resell.
• Review the location and connectivity to highways, schools, hospitals, and workplaces.
• Understand the extra charges and the payment schedule before booking.
• Visit at different times of day to see water logging, sunlight, and neighbourhood activity.

Gated townships often make this process easier because plot sizes are standardised, roads and utilities are planned in advance, and the layout map clearly lists each plot’s area in gaj and sq ft. If you are exploring options on the Lucknow outskirts, comparing standardised plots in a well-planned township against scattered plots in unplanned colonies is a smart step.

Frequently Asked Questions

1. How many square feet are in 1 gaj?
One gaj equals 9 square feet.

2. What is the formula for gaj to sq ft?
Multiply the number of gaj by 9. For example, 100 gaj × 9 = 900 sq ft.

3. How many gaj is 1,000 sq ft?
1,000 sq ft is about 111.11 gaj (1,000 ÷ 9).

4. What is the size of a 100 gaj plot in feet?
A 100 gaj plot is 900 sq ft. A common rectangular layout is around 30 ft × 30 ft, though actual dimensions depend on the layout. Other shapes such as 25 ft × 36 ft also give 900 sq ft.

5. How many sq ft is a 200 gaj plot?
A 200 gaj plot equals 1,800 sq ft.

6. Is gaj the same as square yard?
Yes. In real estate, 1 gaj equals 1 square yard.

7. How many gaj are in 1 acre?
One acre equals 4,840 gaj.

8. How do I convert gaj to square metres?
Multiply the gaj value by 0.8361. For instance, 100 gaj is about 83.6 sq m.

9. Is 1 bigha equal to the same area everywhere in UP?
No. The bigha differs by region, so verify the exact measurement from official land records before buying.

10. Which unit is better for comparing plots, gaj or sq ft?
Either works, as long as you use the same unit across all options. Many buyers prefer converting to price per sq ft for an apples-to-apples comparison.

Conclusion

The gaj to sq ft conversion comes down to one number: 9. Multiply gaj by 9 to get square feet, divide square feet by 9 to get gaj, and use the charts above whenever you need a quick answer. Add a basic understanding of units like bigha, biswa, and square metres, and you will be able to read any plot quote, map, or registry document with confidence.

A clear grasp of plot size helps you budget accurately, compare offers fairly, and plan a home that fits your family. Before you pay any token amount, always verify the area on paper and on site, and confirm the approvals and documents.

Looking for well-planned residential plots in Lucknow with clearly marked sizes and transparent pricing? Explore the available plot sizes at Marine Semra City, Marine Park City and Marine Hometown and book a site visit to see the layout in person.

Disclaimer: Figures such as bigha sizes, setback norms, and price examples are indicative and vary by location and authority. Please verify with official records and professionals before making a purchase decision.