Free area calculator

Bedroom Square Footage Calculator

Bedroom Square Footage Calculator: Get bedroom square footage for flooring, carpet, or listing copy. Enter length and width for results in sq

Room Dimensions

Material Waste FactorOPTIONAL

Estimate Material CostOPTIONAL

Calculation Results

More square footage calculators

Pick a calculator for rooms, shapes, materials, outdoor areas, or unit conversions.

Room Calculator → House Calculator → Bedroom Calculator → Bathroom Calculator → Kitchen Calculator → Multiple Rooms → Rectangle Calculator → Triangle Calculator → Circle Calculator → Trapezoid Calculator → Regular Polygon Calculator → Irregular Shape → Odd Shape → Uneven Sides → Flooring Calculator → Tile Calculator → Paint Calculator → Concrete Calculator → Insulation Calculator → Lawn Calculator → Yard Calculator → Landscaping Calculator → Pool Calculator → Garage Calculator → Roof Calculator → Wall Calculator → Feet & Inches → Inches Calculator → Height Width Length → Sq Ft to Acres → Cubic Yards Calculator →
1 ft (12 in) 1 ft 1 ft² = 144 in²

Bedroom Square Footage Calculator: Flooring, Carpet, and Furniture Planning

The bedroom is where homeowners most often need exact square footage. Carpet installers quote by the square foot. Flooring retailers sell hardwood and vinyl planks by the box, and each box covers a fixed number of square feet. Furniture retailers list bed frames, dressers, and wardrobes in inches. Get this number right before you order and you avoid extra rolls, returns, and last-minute trips to the hardware store.

This calculator returns bedroom area in square feet, square meters, and square yards. Enter length and width in any unit (feet, feet and inches, centimetres, or metres) and compare results side by side. Use the waste factor toggle to add the extra material percentage your installer expects.

Queen Bed60"×80"NSNSDresser12 to 16 ft10 to 14 ft

Bed Sizes and Minimum Room Requirements

The bed frame footprint drives room size requirements. A bedroom that looks roomy on a blueprint can feel tight once furniture goes in. Interior designers usually want at least 24 inches of clear walking space on both sides of the bed and at least 36 inches at the foot for a dresser and a path to the door.

  • Twin bed (38"×75"): minimum room 100 sq ft; recommended 120 sq ft
  • Full/double bed (54"×75"): minimum room 120 sq ft; recommended 150 sq ft
  • Queen bed (60"×80"): minimum room 150 sq ft; recommended 180 to 200 sq ft
  • King bed (76"×80"): minimum room 200 sq ft; recommended 250+ sq ft
  • California King (72"×84"): minimum room 200 sq ft; recommended 250+ sq ft
Carpet needed200 sq ft+ 10%wasteOrder: 220 sq ft totalAlways round up to full roll width

Carpet and Flooring Estimates for Bedrooms

Carpet comes in rolls typically 12 feet wide. To estimate carpet needed, calculate room square footage and divide by 9 to convert to square yards (most carpet is priced per square yard). Add 10% for waste from trimming, seams, and pattern matching. For a bedroom with a 12 ft wide wall, one carpet strip can cover the room without a seam, which matters for premium installs.

Hardwood and engineered wood flooring comes in boxes covering 20 to 25 sq ft each. Buy one extra box beyond your calculated need. Wood planks get cut at walls, and offcuts are rarely long enough for the next row. If you install on the diagonal, bump the waste factor to 15% because every plank hits the wall at an angle and creates more unusable offcuts.

Luxury vinyl plank (LVP) works like hardwood: buy 10% extra. Ceramic and porcelain tile for bedroom floors needs 10 to 15% extra depending on pattern. Large-format tiles (24"×24" or larger) waste more because a crack on one large tile means throwing away the whole piece.

Closet and Attached Bathroom Considerations

Walk-in closets are usually excluded from bedroom square footage in real estate listings but should be included in flooring orders. Measure the closet floor separately and add it to the bedroom total. If the closet uses a different flooring material (tile vs. carpet), keep those measurements separate for ordering.

An attached en-suite bathroom is always excluded from bedroom square footage for listings. Calculate the bathroom area with our bathroom calculator separately, especially if you are tiling the bathroom floor.

Related tools: flooring calculator · tile calculator · paint calculator · room calculator

Bedroom Square Footage and Building Code Minimums

Most U.S. building codes set a minimum habitable room size of 70 to 120 sq ft with a minimum horizontal dimension of 7 ft in any direction. A bedroom cannot be 4 ft wide and 18 ft long. It fails the 7 ft minimum dimension even if it meets the 70 sq ft minimum area. IRC (International Residential Code) Section R304 requires at least one room of 120 sq ft or more in every dwelling. Egress window requirements also affect bedroom design: a window with a minimum 5.7 sq ft net clear opening (minimum 24" high and 20" wide) is required in every sleeping room for fire escape. Measure your bedroom and verify it meets all three requirements (area, minimum dimension, and egress) before listing it as a legal bedroom in a sale.

Min. dimension: 7 ft in any directionMin. area (IRC): 70 sq ftRecommended minimum: 100 sq ftLegal bedroom minimum: varies by codeCheck local jurisdiction

How It Works

1

Select Shape

Choose the shape that matches your space.

2

Enter Dimensions

Enter measurements in any unit. Add quantity, waste factor, and material price if you need them.

3

Get Results

See area in ft², in², yd², m², and acres, plus a cost estimate when you enter a price.

Frequently Asked Questions

Pick the shape from the dropdown: Room, Rectangle, Circle, Triangle (Heron's or base times height), Trapezoid, Cathedral Wall, Annulus, and others. Enter measurements and click Calculate. The calculator runs the right formula and shows square feet, square inches, square yards, square meters, and acres.
Yes. Every calculation shows five area units at once: square feet (ft²), square inches (in²), square yards (yd²), square meters (m²), and acres. You do not need a separate conversion step.
Measure each room, wall, or area in your project. Enter numbers in the calculator, pick the shape, and click Calculate. Add a waste percentage (5 to 15% depending on material), enter cost per unit area, and the calculator totals material quantity and cost.
The waste factor increases total area by a percentage to cover material lost in cutting and installation. Use 5 to 10% for standard flooring and carpet. Use 10 to 15% for diagonal tile or complex layouts. Enter the percentage in Material Waste Factor and the calculator adjusts total area.
Yes. Estimate area and material needs for gardens, walkways, patios, and lawns. Pick the shape that fits your space, enter dimensions, and get total square footage. Enter a material price to figure costs for sod, mulch, pavers, or gravel.
Divide square feet by 10.7639 to get square meters. Example: 500 ft² ÷ 10.7639 = 46.45 m². The calculator shows the m² equivalent on every run.
10 ft × 10 ft = 100 ft², which equals 9.29 m². A 10-by-10-foot room (3.048 m × 3.048 m) has about 9.29 square meters of floor area.
The formula is ½ × Base Width × (Left Height + Right Height). Left and right heights differ because the ceiling slopes. The shape is a right trapezoid. Enter base width and both wall heights for area in square feet.
Yes. Each input has its own unit selector: feet, inches, yards, meters, or centimeters. The calculator converts internally before computing area. Length in meters and width in feet still gives an accurate result.
Both use π × (R² − r²). Circle border and annulus both find the area between two concentric circles. The calculator lists both names because some people search "circle border" and others search "annulus." The result is the same.
Result copied!