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Add the area of every room in a house — bedrooms, living, kitchen, bathrooms, corridors — to get total covered area in sq ft, sq m and Marla for renovation planning.
Construction
Generated on August 22, 2026
Add the area of every room in a house — bedrooms, living, kitchen, bathrooms, corridors — to get total covered area in sq ft, sq m and Marla for renovation planning.
A room area calculator sums the area of multiple rooms in a house or building to give you a total floor area in square feet, with conversions to square meters and Marla. Enter each room's length and width — bedrooms, living rooms, kitchen, bathrooms, corridors — and the tool maintains a running total. This is invaluable for estimating materials (flooring, paint, wallpaper), comparing homes, calculating per-square-foot renovation costs, sizing heating and cooling requirements, and verifying a property listing's claimed area against actual measurements.
Formula
Total Area = Σ (Length × Width) for each room. Conversions: ÷ 10.764 for m², ÷ 272 for Marla.If you are about to renovate, repaint, replace flooring across the whole house, or just want to verify what the property listing actually means by '10 Marla covered area', this is the calculator that turns a confusing pile of room dimensions into one usable total. Enter each room — bedroom, drawing room, kitchen, bath, corridor, staircase landing — one at a time, and the tool keeps a running sum across all of them with instant conversion to square meters and Marla. Where it earns its keep is in the moments people typically get the math wrong: forgetting the corridor that runs through the house (often 80 to 120 sq ft of flooring you have to buy), counting the staircase footprint twice (once as floor area on the ground floor and again as the stair itself), or forgetting that built-up area (which the listing quoted) includes the wall thickness while covered area (which you actually walk on) does not. Honest take: for any whole-home material order — flooring, paint, tile, AC sizing — always do this calculation first, then add 10 percent wastage for materials and round up. Skipping the room-by-room aggregation is the single biggest reason homeowners end up with mid-renovation supplier visits and dye-lot mismatches.
A room area calculator sums the area of multiple rooms in a house or building to give you a total floor area in square feet, with conversions to square meters and Marla. Enter each room's length and width — bedrooms, living rooms, kitchen, bathrooms, corridors — and the tool maintains a running total. This is invaluable for estimating materials (flooring, paint, wallpaper), comparing homes, calculating per-square-foot renovation costs, sizing heating and cooling requirements, and verifying a property listing's claimed area against actual measurements.
Each rectangular room's area is length times width. Summing the areas of all rooms gives the total floor area — which is what you typically need for whole-home material estimates, cleaning quotes, HVAC sizing, and real-estate valuation. The calculator handles any number of rooms and is particularly useful when different rooms have different shapes and you want a single total without manual addition.
Standard residential and commercial room dimensions with their equivalent floor areas.
| Room Type | Typical Size (ft) | Square Feet | Square Meters |
|---|---|---|---|
| Small Bathroom | 5 × 7 | 35 | 3.25 |
| Standard Bathroom | 7 × 10 | 70 | 6.50 |
| Small Bedroom | 10 × 10 | 100 | 9.29 |
| Master Bedroom | 14 × 16 | 224 | 20.81 |
| Kitchen (small) | 10 × 12 | 120 | 11.15 |
| Kitchen (large) | 15 × 20 | 300 | 27.87 |
| Living Room | 15 × 20 | 300 | 27.87 |
| Dining Room | 12 × 14 | 168 | 15.61 |
| Home Office | 10 × 12 | 120 | 11.15 |
| 2-Car Garage | 20 × 20 | 400 | 37.16 |
A typical 5 Marla home (1,360 sq ft) contains ~7 rooms averaging 200 sq ft each (inc. bathrooms).
A 10 Marla home (2,720 sq ft) fits 10–12 rooms including a separate lounge, dining, and 4 bedrooms.
A 1 Kanal home (5,440 sq ft) allows spacious rooms averaging 400 sq ft, a lawn, and a dedicated drawing room.
US building code minimum bedroom size is 70 sq ft — Pakistani homes typically size bedrooms 2–3× that.
A typical home: Bedroom (12 × 14) + Living (15 × 18) + Kitchen (10 × 12) + Bath (8 × 6) totals 546 sq ft — enough to plan materials for a full cleanup.
Useful when planning a whole-home flooring or repainting project — the total dictates how many boxes or liters to buy.
Real-estate listings often quote total covered area; this tool lets you independently verify by room.
When dividing a renovation cost by area, using the accurate total gives a fair per-square-foot price for comparison.
Splitting construction costs across multiple buyers (joint ownership) often requires verifying each family's share of total area — use room-by-room entries.
HVAC system sizing typically needs 20–30 BTU/hr per square foot for cooling, so a 1,500 sq ft home needs roughly 30,000–45,000 BTU/hr of cooling capacity.
Jump to a ready-made conversion — useful for quick reference and sharing:
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Estimate wallpaper rolls for any room or feature wall from perimeter, wall height, roll size and pattern repeat (straight or drop match) with a built-in waste buffer.
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Calculate panels needed, system cost, monthly generation, and payback period for a solar setup.
Roofing Calculator
Calculate roof surface area, shingle bundles, and squares for gable, hip, or shed roofs based on pitch and footprint.
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Plan stair risers, treads, total run, and stringer length. IRC code compliance check + side-view diagram.
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Estimate posts, panels, rails, and concrete bags for a fence. Plan-view diagram + 60lb / 80lb concrete bag counts.
Lumber Board Feet Calculator
Calculate board feet for one or many lumber sizes. Add cost-per-board-foot for a total-cost estimate.
Drywall Calculator
Calculate drywall sheets, joint compound, tape, and screws for a room. Subtracts doors and windows automatically.
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