Free Room Planning Calculators
Professional-grade tools to help you plan your perfect room. Calculate square footage, find the ideal TV size, figure out paint quantities, and more—all free, no account needed.
Room Size Calculator
Calculate your room's square footage and discover what furniture fits perfectly in your space.
- Instant square footage calculation
- See recommended furniture sizes
- Understand your room's potential
TV Distance Calculator
Find the perfect TV size for your viewing distance, or calculate the ideal seating position for your TV.
- Find the perfect TV size for your room
- Calculate optimal viewing distance
- Get mounting height recommendations
Furniture Spacing Calculator
Calculate the perfect spacing between furniture pieces for comfortable, functional room layouts.
- Get professional spacing guidelines
- Ensure comfortable traffic flow
- Avoid cramped, unusable layouts
Paint Calculator
Calculate exactly how much paint you need for your room. No more guessing or extra trips to the store.
- Calculate exact paint quantity needed
- Account for doors and windows
- Adjust for multiple coats
Flooring Calculator
Calculate exactly how much flooring material you need, including waste allowance for cuts and mistakes.
- Calculate exact flooring quantity
- Includes waste factor for cuts
- Works for all flooring types
Rug Size Guide
Find the perfect rug size for any room. Get professional placement recommendations and visual guides.
- Find the ideal rug size for your room
- See visual placement guides
- Get professional styling tips
Why Use Our Free Tools?
Save Time & Money
Know exactly how much paint, flooring, or furniture you need before shopping. Avoid costly mistakes and multiple trips to the store.
Expert Guidelines Built In
Each calculator includes professional interior design standards and recommendations—the same rules designers use.
Plan Before You Commit
Whether buying a new TV or choosing a rug, get the sizing right the first time. No returns, no disappointments.
Works With Room Sketch 3D
Use these calculators alongside our room planning app to visualize your space in 2D and 3D before making changes.
Take It Further With Room Sketch 3D
These calculators give you the numbers. Our room planner lets you see exactly how everything fits together—draw your room, add furniture, and explore in 3D.