Room Dimension Calculator

Calculate room dimensions, area, volume, and proportions for interior design and space planning.

Results

Floor Area
Volume
Wall Area
Perimeter:
Aspect Ratio:
Floor Area (sq m):

About This Calculator

Calculate room dimensions for space planning, furniture arrangement, and material estimation. Get floor area, volume, wall area, and metric conversions instantly.

How to Use

  1. Enter room length, width, and height
  2. Click Calculate to see all dimensions
  3. Use results for flooring, painting, or HVAC planning

🧮 Room Formulas

Floor Area: Length × Width
Volume: Length × Width × Height
Wall Area: 2 × Height × (Length + Width)

📊 Standard Room Sizes

RoomMin SizeIdeal Size
Bedroom100 sq ft150-200 sq ft
Living Room150 sq ft250-400 sq ft
Kitchen70 sq ft100-200 sq ft
Bathroom35 sq ft50-100 sq ft

💡 Use Cases

  • Flooring: Calculate tile, carpet, or hardwood needed
  • Painting: Estimate wall paint coverage
  • HVAC: Size heating/cooling equipment by volume
  • Furniture: Plan layouts with proper clearances

❓ FAQ

What's the ideal room proportion?

A 1:1.6 ratio (golden ratio) is visually pleasing. Avoid very long narrow rooms (1:3+).

Standard ceiling height?

Standard is 8-9 ft. Higher ceilings (10-12 ft) feel more spacious but cost more to heat/cool.

? Frequently Asked Questions

How accurate is this

This calculator uses standard formulas and provides accurate results for typical use cases. For professional or critical applications, always verify results with certified professionals or official sources.

Is this calculator free to use?

Yes, this Room Dimension Calculator • Architecture • Calculator is completely free to use with no registration required. You can use it as many times as needed without any limitations.

Can I use this on mobile devices?

Absolutely! This calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers.

How do I interpret the results?

The results are displayed clearly with appropriate units. Refer to the "About This Calculator" section for detailed information.