Free Home Decor Tools & Calculators

Free Home Decor Tools & Calculators

Planning a room should feel exciting, not overwhelming.

These free furnishing tools help you make confident decisions — from sizing your curtains correctly to planning the perfect furniture layout without moving a single piece.

Think of each one as a furnishing guide that does the math so you can focus on making your space feel like home.

Every tool runs in your browser, gives you instant results, and requires no signup or email.


Home Decor Tools

Curtain & Blind Size Calculator

Curtain & Blind Size Calculator

Find the right curtain and blind dimensions for any window in your home. Enter your window measurements, choose your preferred drop style, and get a recommended rod length, fabric width, and hanging height — all based on standard interior design proportions.

  • Works for curtains, blinds, and roller shades
  • Calculates rod placement, fabric fullness, and drop length automatically
  • Supports inches and centimeters
  • Includes a complete curtain sizing guide with room-by-room tips

Calculate Your Curtain Size


Paint Coverage Calculator

Paint Coverage Calculator

Take the guesswork out of buying paint. Enter your room dimensions, number of doors and windows, and number of coats, and get an accurate estimate of how much paint you need — so you never overbuy or run short mid-project.

  • Works for walls, ceilings, and trim
  • Accounts for doors, windows, and multiple coats
  • Supports square feet and square meters
  • Includes a paint buying guide with tips on finishes and coverage rates

Calculate Your Paint Coverage


Furniture Layout Planner

Furniture Layout Planner

Arrange your furniture with confidence before moving a single piece. Enter your room dimensions, choose your furniture pieces, and get a recommended layout based on standard spacing rules for traffic flow, comfort, and proportion.

  • Works for living rooms, bedrooms, dining rooms, and more
  • Calculates clearance distances and furniture spacing automatically
  • Supports feet and meters
  • Includes a furniture layout guide with tips for small and large spaces

Plan Your Furniture Layout


Why Use Our Furnishing Tools?

  • Free, forever. Every tool is completely free to use, today and in the future. No premium tiers, no paywalls, no “enter your email to see results.” Just open the tool and get your answer.
  • No signup required. You do not need to create an account, verify an email, or hand over any personal information. Open the page, use the tool, and move on with your project.
  • Built for real decisions. These are not toy calculators. Every tool uses the same furnishing proportions, spacing rules, and sizing guidelines that interior professionals rely on — packaged so you can use them without hiring one.
  • Designed for every home. Whether you are furnishing a studio apartment or a family home, our tools are built to work across all room sizes, styles, and budgets.

Have an idea for a tool you would find useful? Contact us.